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- PDB-8pj5: Structure of human 48S translation initiation complex after eIF2 ... -

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Basic information

Entry
Database: PDB / ID: 8pj5
TitleStructure of human 48S translation initiation complex after eIF2 release prior 60S subunit joining (48S-5)
Components
  • (40S ribosomal protein ...) x 31
  • (Eukaryotic translation initiation factor ...) x 14
  • 18S rRNA
  • 60S ribosomal protein L41
  • Initiator Met-tRNA-i
  • Receptor of activated protein C kinase 1
  • Ubiquitin
  • mRNA
KeywordsRIBOSOME / TRANSLATION / initiation / 48S / eIF / human / eukaryotic / factor / codon / scanning / closed
Function / homology
Function and homology information


positive regulation of mRNA binding / viral translational termination-reinitiation / eukaryotic translation initiation factor 3 complex, eIF3e / cap-dependent translational initiation / eukaryotic translation initiation factor 3 complex, eIF3m / IRES-dependent viral translational initiation / translation reinitiation / eukaryotic translation initiation factor 3 complex / formation of cytoplasmic translation initiation complex / cytoplasmic translational initiation ...positive regulation of mRNA binding / viral translational termination-reinitiation / eukaryotic translation initiation factor 3 complex, eIF3e / cap-dependent translational initiation / eukaryotic translation initiation factor 3 complex, eIF3m / IRES-dependent viral translational initiation / translation reinitiation / eukaryotic translation initiation factor 3 complex / formation of cytoplasmic translation initiation complex / cytoplasmic translational initiation / multi-eIF complex / translation factor activity, RNA binding / eukaryotic 43S preinitiation complex / mRNA cap binding / eukaryotic 48S preinitiation complex / negative regulation of endoplasmic reticulum unfolded protein response / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair / negative regulation of peptidyl-serine phosphorylation / positive regulation of respiratory burst involved in inflammatory response / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage / positive regulation of gastrulation / regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / protein tyrosine kinase inhibitor activity / IRE1-RACK1-PP2A complex / positive regulation of endodeoxyribonuclease activity / nucleolus organization / positive regulation of Golgi to plasma membrane protein transport / translation at postsynapse / TNFR1-mediated ceramide production / protein-synthesizing GTPase / negative regulation of DNA repair / negative regulation of RNA splicing / metal-dependent deubiquitinase activity / mammalian oogenesis stage / regulation of translational initiation / supercoiled DNA binding / activation-induced cell death of T cells / neural crest cell differentiation / nuclear-transcribed mRNA catabolic process, nonsense-mediated decay / NF-kappaB complex / oxidized purine DNA binding / cysteine-type endopeptidase activator activity involved in apoptotic process / negative regulation of intrinsic apoptotic signaling pathway in response to hydrogen peroxide / ubiquitin-like protein conjugating enzyme binding / regulation of establishment of cell polarity / translation at presynapse / positive regulation of ubiquitin-protein transferase activity / Formation of the ternary complex, and subsequently, the 43S complex / negative regulation of phagocytosis / erythrocyte homeostasis / rRNA modification in the nucleus and cytosol / cytoplasmic side of rough endoplasmic reticulum membrane / laminin receptor activity / protein kinase A binding / negative regulation of ubiquitin protein ligase activity / pigmentation / Ribosomal scanning and start codon recognition / ion channel inhibitor activity / Translation initiation complex formation / positive regulation of mitochondrial depolarization / positive regulation of T cell receptor signaling pathway / positive regulation of activated T cell proliferation / fibroblast growth factor binding / negative regulation of Wnt signaling pathway / monocyte chemotaxis / negative regulation of translational frameshifting / Protein hydroxylation / BH3 domain binding / TOR signaling / SARS-CoV-1 modulates host translation machinery / regulation of cell division / mTORC1-mediated signalling / T cell proliferation involved in immune response / Peptide chain elongation / iron-sulfur cluster binding / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / Selenocysteine synthesis / positive regulation of signal transduction by p53 class mediator / Formation of a pool of free 40S subunits / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ubiquitin ligase inhibitor activity / Eukaryotic Translation Termination / Response of EIF2AK4 (GCN2) to amino acid deficiency / SRP-dependent cotranslational protein targeting to membrane / negative regulation of ubiquitin-dependent protein catabolic process / Viral mRNA Translation / negative regulation of respiratory burst involved in inflammatory response / phagocytic cup / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / GTP hydrolysis and joining of the 60S ribosomal subunit / L13a-mediated translational silencing of Ceruloplasmin expression / erythrocyte development / Major pathway of rRNA processing in the nucleolus and cytosol / regulation of translational fidelity / endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Protein methylation / spindle assembly
Similarity search - Function
Eukaryotic translation initiation factor 3 subunit D / Eukaryotic translation initiation factor 3 subunit 7 (eIF-3) / Eukaryotic translation initiation factor 3 subunit H / eIF3h, C-terminal / C-terminal region of eIF3h / Eukaryotic translation initiation factor 3 subunit F / Translation initiation factor 3 complex subunit L / RNA polymerase I-associated factor PAF67 / EIF3I / Eukaryotic translation initiation factor 3 subunit M ...Eukaryotic translation initiation factor 3 subunit D / Eukaryotic translation initiation factor 3 subunit 7 (eIF-3) / Eukaryotic translation initiation factor 3 subunit H / eIF3h, C-terminal / C-terminal region of eIF3h / Eukaryotic translation initiation factor 3 subunit F / Translation initiation factor 3 complex subunit L / RNA polymerase I-associated factor PAF67 / EIF3I / Eukaryotic translation initiation factor 3 subunit M / eIF3 subunit M, C-terminal helix domain / eIF3 subunit 6 N terminal domain / eIF3 subunit M, C-terminal helix / Eukaryotic translation initiation factor 3 subunit E, C-terminal / Eukaryotic translation initiation factor 3 subunit E / Eukaryotic translation initiation factor 3 subunit G / Eukaryotic translation initiation factor 3 subunit E, N-terminal / Eukaryotic translation initiation factor 3 subunit G, N-terminal / Elongation factor Tu-type domain / eIF3G, RNA recognition motif / Eukaryotic translation initiation factor 3 subunit G / Elongation factor Tu domain 4 / eIF3 subunit 6 N terminal domain / Eukaryotic translation initiation factor 3 subunit K / Translation initiation factor 3, subunit 12, N-terminal, eukaryotic / Eukaryotic translation initiation factor 3 subunit I / Eukaryotic translation initiation factor 3 subunit B / eIF3B, RNA recognition motif / Translation initiation factor, beta propellor-like domain / Eukaryotic translation initiation factor eIF2A / Eukaryotic translation initiation factor 3 subunit M eIF3m/COP9 signalosome complex subunit 7 COPS7 / : / eIF3a, PCI domain, TPR-like region / Eukaryotic translation initiation factor 3 subunit A / Eukaryotic translation initiation factor 3 subunit C, N-terminal domain / Eukaryotic translation initiation factor 3 subunit C / Eukaryotic translation initiation factor 3 subunit 8 N-terminus / Translation initiation factor 1A (eIF-1A), conserved site / Translation initiation factor IF- 2, domain 3 / Translation-initiation factor 2 / Eukaryotic initiation factor 1A signature. / Translation initiation factor IF- 2 / Translation initiation factor IF-2, domain 3 superfamily / eukaryotic translation initiation factor 1A / Translation initiation factor 1A (eIF-1A) / RNA-binding domain, S1, IF1 type / Translation initiation factor 1A / IF-1 / S1 domain IF1 type profile. / CSN8/PSMD8/EIF3K / CSN8/PSMD8/EIF3K family / Rpn11/EIF3F, C-terminal / Maintenance of mitochondrial structure and function / : / motif in proteasome subunits, Int-6, Nip-1 and TRIP-15 / PCI domain / Proteasome component (PCI) domain / PCI domain profile. / 40S ribosomal protein SA / 40S ribosomal protein SA, C-terminal domain / 40S ribosomal protein SA C-terminus / Ubiquitin-like protein FUBI / JAB1/Mov34/MPN/PAD-1 ubiquitin protease / : / Ribosomal protein S26e signature. / Ribosomal protein L41 / Ribosomal protein L41 / Ribosomal protein S21e, conserved site / Ribosomal protein S21e signature. / Ribosomal protein S26e / Ribosomal protein S26e superfamily / Ribosomal protein S26e / : / Ribosomal protein S12e signature. / Ribosomal protein S12e / Ribosomal protein S19e, conserved site / Ribosomal protein S19e signature. / Small (40S) ribosomal subunit Asc1/RACK1 / Ribosomal protein S5, eukaryotic/archaeal / Ribosomal protein S21e / Ribosomal protein S21e superfamily / Ribosomal protein S21e / Ribosomal protein S2, eukaryotic / S27a-like superfamily / 40S Ribosomal protein S10 / : / Ribosomal protein S7e signature. / Plectin/S10, N-terminal / Plectin/S10 domain / Ribosomal protein S10, eukaryotic/archaeal / Ribosomal protein S8e subdomain, eukaryotes / Ribosomal protein S25 / S25 ribosomal protein / Ribosomal protein S27a / Ribosomal protein S17e, conserved site / Ribosomal protein S27a / Ribosomal protein S17e signature. / Ribosomal protein S27a / Ribosomal protein S3Ae, conserved site / Ribosomal protein S3Ae signature. / Ribosomal protein S30
Similarity search - Domain/homology
GUANOSINE-5'-TRIPHOSPHATE / : / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Eukaryotic translation initiation factor 3 subunit F / Eukaryotic translation initiation factor 3 subunit D / Eukaryotic translation initiation factor 3 subunit H / Eukaryotic translation initiation factor 5B ...GUANOSINE-5'-TRIPHOSPHATE / : / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Eukaryotic translation initiation factor 3 subunit F / Eukaryotic translation initiation factor 3 subunit D / Eukaryotic translation initiation factor 3 subunit H / Eukaryotic translation initiation factor 5B / Eukaryotic translation initiation factor 3 subunit G / Small ribosomal subunit protein eS17 / Small ribosomal subunit protein uS2 / Small ribosomal subunit protein uS5 / Small ribosomal subunit protein uS3 / Small ribosomal subunit protein eS12 / Small ribosomal subunit protein eS19 / Small ribosomal subunit protein eS27 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein uS7 / Small ribosomal subunit protein eS10 / Eukaryotic translation initiation factor 1A, X-chromosomal / Eukaryotic translation initiation factor 3 subunit B / Eukaryotic translation initiation factor 3 subunit E / Small ribosomal subunit protein uS10 / Small ribosomal subunit protein eS1 / Small ribosomal subunit protein eS7 / Small ribosomal subunit protein eS8 / Small ribosomal subunit protein uS8 / Small ribosomal subunit protein uS9 / Small ribosomal subunit protein uS11 / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS13 / Small ribosomal subunit protein uS14 / Small ribosomal subunit protein uS15 / Small ribosomal subunit protein uS17 / Small ribosomal subunit protein eS4, X isoform / Small ribosomal subunit protein eS6 / Small ribosomal subunit protein uS19 / Small ribosomal subunit protein eS24 / Small ribosomal subunit protein eS25 / Small ribosomal subunit protein eS26 / Small ribosomal subunit protein eS28 / Ubiquitin-like FUBI-ribosomal protein eS30 fusion protein / Small ribosomal subunit protein eS32 / Ubiquitin-ribosomal protein eS31 fusion protein / Small ribosomal subunit protein eS21 / Small ribosomal subunit protein RACK1 / Eukaryotic translation initiation factor 3 subunit I / Eukaryotic translation initiation factor 3 subunit A / Eukaryotic translation initiation factor 3 subunit M / Eukaryotic translation initiation factor 3 subunit C / Eukaryotic translation initiation factor 3 subunit K / Eukaryotic translation initiation factor 3 subunit L
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.9 Å
AuthorsPetrychenko, V. / Yi, S.-H. / Liedtke, D. / Peng, B.Z. / Rodnina, M.V. / Fischer, N.
Funding support Germany, 2items
OrganizationGrant numberCountry
Max Planck Society Germany
German Research Foundation (DFG)Leibniz-Preis Germany
CitationJournal: Nat Struct Mol Biol / Year: 2025
Title: Structural basis for translational control by the human 48S initiation complex.
Authors: Valentyn Petrychenko / Sung-Hui Yi / David Liedtke / Bee-Zen Peng / Marina V Rodnina / Niels Fischer /
Abstract: The selection of an open reading frame (ORF) for translation of eukaryotic mRNA relies on remodeling of the scanning 48S initiation complex into an elongation-ready 80S ribosome. Using cryo-electron ...The selection of an open reading frame (ORF) for translation of eukaryotic mRNA relies on remodeling of the scanning 48S initiation complex into an elongation-ready 80S ribosome. Using cryo-electron microscopy, we visualize the key commitment steps orchestrating 48S remodeling in humans. The mRNA Kozak sequence facilitates mRNA scanning in the 48S open state and stabilizes the 48S closed state by organizing the contacts of eukaryotic initiation factors (eIFs) and ribosomal proteins and by reconfiguring mRNA structure. GTPase-triggered large-scale fluctuations of 48S-bound eIF2 facilitate eIF5B recruitment, transfer of initiator tRNA from eIF2 to eIF5B and the release of eIF5 and eIF2. The 48S-bound multisubunit eIF3 complex controls ribosomal subunit joining by coupling eIF exchange to gradual displacement of the eIF3c N-terminal domain from the intersubunit interface. These findings reveal the structural mechanism of ORF selection in human cells and explain how eIF3 could function in the context of the 80S ribosome.
History
DepositionJun 22, 2023Deposition site: PDBE / Processing site: PDBE
Revision 1.0Aug 14, 2024Provider: repository / Type: Initial release
Revision 1.1Oct 2, 2024Group: Data collection / Database references / Category: citation / citation_author / em_admin
Item: _citation.pdbx_database_id_PubMed / _citation.title ..._citation.pdbx_database_id_PubMed / _citation.title / _citation_author.identifier_ORCID / _citation_author.name / _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
0: Eukaryotic translation initiation factor 5B
1: Eukaryotic translation initiation factor 3 subunit B
2: Eukaryotic translation initiation factor 3 subunit I
3: Eukaryotic translation initiation factor 3 subunit K
4: Eukaryotic translation initiation factor 3 subunit F
5: Eukaryotic translation initiation factor 3 subunit L
6: Eukaryotic translation initiation factor 3 subunit M
7: mRNA
8: Eukaryotic translation initiation factor 3 subunit H
9: 60S ribosomal protein L41
A: 18S rRNA
B: 40S ribosomal protein S11
C: 40S ribosomal protein S4, X isoform
D: 40S ribosomal protein S9
E: 40S ribosomal protein S23
F: 40S ribosomal protein S30
G: 40S ribosomal protein S7
H: 40S ribosomal protein S27
I: 40S ribosomal protein S13
J: 40S ribosomal protein S15a
K: 40S ribosomal protein S21
L: 40S ribosomal protein S2
M: 40S ribosomal protein S17
N: 40S ribosomal protein SA
O: 40S ribosomal protein S3a
P: 40S ribosomal protein S14
Q: 40S ribosomal protein S26
R: 40S ribosomal protein S8
S: 40S ribosomal protein S6
T: 40S ribosomal protein S24
V: 40S ribosomal protein S5
Y: 40S ribosomal protein S16
Z: 40S ribosomal protein S3
a: 40S ribosomal protein S10
b: 40S ribosomal protein S15
c: Receptor of activated protein C kinase 1
d: 40S ribosomal protein S19
e: 40S ribosomal protein S25
f: 40S ribosomal protein S18
h: 40S ribosomal protein S20
i: 40S ribosomal protein S29
k: Ubiquitin
m: 40S ribosomal protein S12
n: 40S ribosomal protein S28
o: Eukaryotic translation initiation factor 3 subunit G
q: Eukaryotic translation initiation factor 1A, X-chromosomal
u: Eukaryotic translation initiation factor 3 subunit A
v: Eukaryotic translation initiation factor 3 subunit E
w: Initiator Met-tRNA-i
x: Eukaryotic translation initiation factor 3 subunit D
y: Eukaryotic translation initiation factor 3 subunit C
hetero molecules


Theoretical massNumber of molelcules
Total (without water)2,256,465145
Polymers2,253,60051
Non-polymers2,86694
Water00
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

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Eukaryotic translation initiation factor ... , 14 types, 14 molecules 01234568oquvxy

#1: Protein Eukaryotic translation initiation factor 5B / eIF-5B / Translation initiation factor IF-2


Mass: 139079.078 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: EIF5B, IF2, KIAA0741 / Production host: Escherichia coli (E. coli) / References: UniProt: O60841, protein-synthesizing GTPase
#2: Protein Eukaryotic translation initiation factor 3 subunit B / eIF3b / Eukaryotic translation initiation factor 3 subunit 9 / Prt1 homolog / hPrt1 / eIF-3-eta / ...eIF3b / Eukaryotic translation initiation factor 3 subunit 9 / Prt1 homolog / hPrt1 / eIF-3-eta / eIF3 p110 / eIF3 p116


Mass: 92593.414 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P55884
#3: Protein Eukaryotic translation initiation factor 3 subunit I / eIF3i / Eukaryotic translation initiation factor 3 subunit 2 / TGF-beta receptor-interacting ...eIF3i / Eukaryotic translation initiation factor 3 subunit 2 / TGF-beta receptor-interacting protein 1 / TRIP-1 / eIF-3-beta / eIF3 p36


Mass: 36543.773 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q13347
#4: Protein Eukaryotic translation initiation factor 3 subunit K / eIF3k / Eukaryotic translation initiation factor 3 subunit 12 / Muscle-specific gene M9 protein / ...eIF3k / Eukaryotic translation initiation factor 3 subunit 12 / Muscle-specific gene M9 protein / PLAC-24 / eIF-3 p25 / eIF-3 p28


Mass: 25083.619 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9UBQ5
#5: Protein Eukaryotic translation initiation factor 3 subunit F / eIF3f / Deubiquitinating enzyme eIF3f / Eukaryotic translation initiation factor 3 subunit 5 / eIF- ...eIF3f / Deubiquitinating enzyme eIF3f / Eukaryotic translation initiation factor 3 subunit 5 / eIF-3-epsilon / eIF3 p47


Mass: 37593.645 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O00303, ubiquitinyl hydrolase 1
#6: Protein Eukaryotic translation initiation factor 3 subunit L / eIF3l / Eukaryotic translation initiation factor 3 subunit 6-interacting protein / Eukaryotic ...eIF3l / Eukaryotic translation initiation factor 3 subunit 6-interacting protein / Eukaryotic translation initiation factor 3 subunit E-interacting protein


Mass: 66803.734 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9Y262
#7: Protein Eukaryotic translation initiation factor 3 subunit M / eIF3m / Fetal lung protein B5 / hFL-B5 / PCI domain-containing protein 1


Mass: 42555.832 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q7L2H7
#9: Protein Eukaryotic translation initiation factor 3 subunit H / eIF3h / Eukaryotic translation initiation factor 3 subunit 3 / eIF-3-gamma / eIF3 p40 subunit


Mass: 39979.277 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O15372
#45: Protein Eukaryotic translation initiation factor 3 subunit G / eIF3g / Eukaryotic translation initiation factor 3 RNA-binding subunit / eIF-3 RNA-binding subunit ...eIF3g / Eukaryotic translation initiation factor 3 RNA-binding subunit / eIF-3 RNA-binding subunit / Eukaryotic translation initiation factor 3 subunit 4 / eIF-3-delta / eIF3 p42 / eIF3 p44


Mass: 35662.016 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O75821
#46: Protein Eukaryotic translation initiation factor 1A, X-chromosomal / eIF-1A X isoform / Eukaryotic translation initiation factor 4C / eIF-4C


Mass: 16488.449 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: EIF1AX, EIF1A, EIF4C / Production host: Escherichia coli (E. coli) / References: UniProt: P47813
#47: Protein Eukaryotic translation initiation factor 3 subunit A / eIF3a / Eukaryotic translation initiation factor 3 subunit 10 / eIF-3-theta / eIF3 p167 / eIF3 p180 ...eIF3a / Eukaryotic translation initiation factor 3 subunit 10 / eIF-3-theta / eIF3 p167 / eIF3 p180 / eIF3 p185


Mass: 166903.781 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q14152
#48: Protein Eukaryotic translation initiation factor 3 subunit E / eIF3e / Eukaryotic translation initiation factor 3 subunit 6 / Viral integration site protein INT-6 ...eIF3e / Eukaryotic translation initiation factor 3 subunit 6 / Viral integration site protein INT-6 homolog / eIF-3 p48


Mass: 52281.633 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P60228
#50: Protein Eukaryotic translation initiation factor 3 subunit D / eIF3d / Eukaryotic translation initiation factor 3 subunit 7 / eIF-3-zeta / eIF3 p66


Mass: 64060.758 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O15371
#51: Protein Eukaryotic translation initiation factor 3 subunit C / eIF3c / Eukaryotic translation initiation factor 3 subunit 8 / eIF3 p110


Mass: 105503.945 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q99613

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RNA chain , 3 types, 3 molecules 7Aw

#8: RNA chain mRNA


Mass: 82412.445 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Escherichia coli (E. coli)
#11: RNA chain 18S rRNA


Mass: 603245.500 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human)
#49: RNA chain Initiator Met-tRNA-i


Mass: 24231.510 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Escherichia coli (E. coli) / References: GenBank: 174924

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Protein/peptide , 1 types, 1 molecules 9

#10: Protein/peptide 60S ribosomal protein L41 / HG12 / Large ribosomal subunit protein eL41


Mass: 3473.451 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62945

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40S ribosomal protein ... , 31 types, 31 molecules BCDEFGHIJKLMNOPQRSTVYZabdefhimn

#12: Protein 40S ribosomal protein S11 / Small ribosomal subunit protein uS17


Mass: 18468.826 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62280
#13: Protein 40S ribosomal protein S4, X isoform / SCR10 / Single copy abundant mRNA protein / Small ribosomal subunit protein eS4


Mass: 29654.869 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62701
#14: Protein 40S ribosomal protein S9 / Small ribosomal subunit protein uS4


Mass: 22641.564 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P46781
#15: Protein 40S ribosomal protein S23 / Small ribosomal subunit protein uS12


Mass: 15844.666 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62266
#16: Protein 40S ribosomal protein S30 / Small ribosomal subunit protein eS30


Mass: 6564.745 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62861
#17: Protein 40S ribosomal protein S7 / Small ribosomal subunit protein eS7


Mass: 22168.914 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62081
#18: Protein 40S ribosomal protein S27 / Metallopan-stimulin 1 / MPS-1 / Small ribosomal subunit protein eS27


Mass: 9480.186 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P42677
#19: Protein 40S ribosomal protein S13 / Small ribosomal subunit protein uS15


Mass: 17259.389 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62277
#20: Protein 40S ribosomal protein S15a / Small ribosomal subunit protein uS8


Mass: 14865.555 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62244
#21: Protein 40S ribosomal protein S21 / Small ribosomal subunit protein eS21


Mass: 9124.389 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P63220
#22: Protein 40S ribosomal protein S2 / 40S ribosomal protein S4 / Protein LLRep3 / Small ribosomal subunit protein uS5


Mass: 31376.516 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P15880
#23: Protein 40S ribosomal protein S17 / Small ribosomal subunit protein eS17


Mass: 15578.156 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P08708
#24: Protein 40S ribosomal protein SA / 37 kDa laminin receptor precursor / 37LRP / 37/67 kDa laminin receptor / LRP/LR / 67 kDa laminin ...37 kDa laminin receptor precursor / 37LRP / 37/67 kDa laminin receptor / LRP/LR / 67 kDa laminin receptor / 67LR / Colon carcinoma laminin-binding protein / Laminin receptor 1 / LamR / Laminin-binding protein precursor p40 / LBP/p40 / Multidrug resistance-associated protein MGr1-Ag / NEM/1CHD4 / Small ribosomal subunit protein uS2


Mass: 32883.938 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P08865
#25: Protein 40S ribosomal protein S3a / Small ribosomal subunit protein eS1 / v-fos transformation effector protein / Fte-1


Mass: 30002.061 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P61247
#26: Protein 40S ribosomal protein S14 / Small ribosomal subunit protein uS11


Mass: 16302.772 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62263
#27: Protein 40S ribosomal protein S26 / Small ribosomal subunit protein eS26


Mass: 13047.532 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62854
#28: Protein 40S ribosomal protein S8 / Small ribosomal subunit protein eS8


Mass: 24263.387 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62241
#29: Protein 40S ribosomal protein S6 / Phosphoprotein NP33 / Small ribosomal subunit protein eS6


Mass: 28751.906 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62753
#30: Protein 40S ribosomal protein S24 / Small ribosomal subunit protein eS24


Mass: 15463.333 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62847
#31: Protein 40S ribosomal protein S5 / Small ribosomal subunit protein uS7


Mass: 22913.453 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P46782
#32: Protein 40S ribosomal protein S16 / Small ribosomal subunit protein uS9


Mass: 16477.377 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62249
#33: Protein 40S ribosomal protein S3 / Small ribosomal subunit protein uS3


Mass: 26729.369 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human)
References: UniProt: P23396, DNA-(apurinic or apyrimidinic site) lyase
#34: Protein 40S ribosomal protein S10 / Small ribosomal subunit protein eS10


Mass: 18933.846 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P46783
#35: Protein 40S ribosomal protein S15 / RIG protein / Small ribosomal subunit protein uS19


Mass: 17076.207 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62841
#37: Protein 40S ribosomal protein S19 / Small ribosomal subunit protein eS19


Mass: 16091.562 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P39019
#38: Protein 40S ribosomal protein S25 / Small ribosomal subunit protein eS25


Mass: 13776.224 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62851
#39: Protein 40S ribosomal protein S18 / Ke-3 / Ke3 / Small ribosomal subunit protein uS13


Mass: 17759.777 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62269
#40: Protein 40S ribosomal protein S20 / Small ribosomal subunit protein uS10


Mass: 13398.763 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P60866
#41: Protein 40S ribosomal protein S29 / Small ribosomal subunit protein uS14


Mass: 6690.821 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62273
#43: Protein 40S ribosomal protein S12 / Small ribosomal subunit protein eS12


Mass: 14538.987 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P25398
#44: Protein 40S ribosomal protein S28 / Small ribosomal subunit protein eS28


Mass: 7855.052 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62857

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Protein , 2 types, 2 molecules ck

#36: Protein Receptor of activated protein C kinase 1 / Cell proliferation-inducing gene 21 protein / Guanine nucleotide-binding protein subunit beta-2- ...Cell proliferation-inducing gene 21 protein / Guanine nucleotide-binding protein subunit beta-2-like 1 / Guanine nucleotide-binding protein subunit beta-like protein 12.3 / Human lung cancer oncogene 7 protein / HLC-7 / Receptor for activated C kinase / Small ribosomal subunit protein RACK1


Mass: 35115.652 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P63244
#42: Protein Ubiquitin


Mass: 18004.041 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62979

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Non-polymers , 3 types, 94 molecules

#52: Chemical...
ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 91 / Source method: obtained synthetically / Formula: Mg
#53: Chemical ChemComp-GTP / GUANOSINE-5'-TRIPHOSPHATE


Mass: 523.180 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H16N5O14P3 / Comment: GTP, energy-carrying molecule*YM
#54: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Zn

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Details

Has ligand of interestN

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Human 48S initiation complex 40S-eIF1A-eIF3-eIF5-eIF5B-tRNA-Met-mRNA
Type: RIBOSOME / Entity ID: #1-#51 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.5
Buffer component
IDConc.NameFormulaBuffer-ID
120 mMHEPES1
295 mMPotassium acetateKOAc1
33.75 mMMagnesium acetateMg(OAc)21
41 mMAdenosine triphosphateATP1
50.5 mMGuanosine triphosphateGTP1
62 mMDithiothreitolDTT1
70.25 mMSpermidine1
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationInstrument: HOMEMADE PLUNGER / Cryogen name: ETHANE / Details: Manual blotting & plunge-freezing

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: SPOT SCAN
Electron lensMode: BRIGHT FIELD / Nominal magnification: 59000 X / Nominal defocus max: 2500 nm / Nominal defocus min: 200 nm
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingAverage exposure time: 1.5 sec. / Electron dose: 45 e/Å2 / Film or detector model: FEI FALCON III (4k x 4k)
EM imaging opticsSpherical aberration corrector: Electron-optical aberrations were corrected using a CETCOR Cs-corrector (CEOS, Heidelberg) aligned with the CETCORPLUS 4.6.9 software package (CEOS, Heidelberg).

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Processing

EM software
IDNameVersionCategory
1Gautomatch0.56particle selection
2EPU2.11image acquisition
4Gctf1.0.6CTF correction
7UCSF ChimeraX1.4model fitting
9RELION4initial Euler assignment
10RELION4final Euler assignment
12RELION43D reconstruction
13Coot0.9.8.1model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 238019 / Symmetry type: POINT

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