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- PDB-8p09: 48S late-stage initiation complex with non methylated mRNA -

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Basic information

Entry
Database: PDB / ID: 8p09
Title48S late-stage initiation complex with non methylated mRNA
Components
  • (40S ribosomal protein ...) x 25
  • (Eukaryotic translation initiation factor ...) x 2
  • (Ribosomal protein ...) x 8
  • 18S ribosomal RNA
  • 60S ribosomal protein L41
  • ATP binding cassette subfamily E member 1
  • initiator methionylated tRNA
  • mRNA
KeywordsTRANSLATION / translation initiation / ribosome / non methylated mRNA
Function / homology
Function and homology information


Translation initiation complex formation / Formation of the ternary complex, and subsequently, the 43S complex / Ribosomal scanning and start codon recognition / Major pathway of rRNA processing in the nucleolus and cytosol / GTP hydrolysis and joining of the 60S ribosomal subunit / L13a-mediated translational silencing of Ceruloplasmin expression / SRP-dependent cotranslational protein targeting to membrane / Formation of a pool of free 40S subunits / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) ...Translation initiation complex formation / Formation of the ternary complex, and subsequently, the 43S complex / Ribosomal scanning and start codon recognition / Major pathway of rRNA processing in the nucleolus and cytosol / GTP hydrolysis and joining of the 60S ribosomal subunit / L13a-mediated translational silencing of Ceruloplasmin expression / SRP-dependent cotranslational protein targeting to membrane / Formation of a pool of free 40S subunits / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / eukaryotic translation initiation factor 2 complex / ribosomal subunit / eukaryotic 48S preinitiation complex / laminin receptor activity / positive regulation of signal transduction by p53 class mediator / ubiquitin ligase inhibitor activity / phagocytic cup / ribosomal small subunit binding / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / regulation of translational fidelity / ribosomal small subunit export from nucleus / translation regulator activity / ribosomal subunit export from nucleus / cytosolic ribosome / translational termination / laminin binding / rough endoplasmic reticulum / 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) / gastrulation / MDM2/MDM4 family protein binding / translational initiation / translation initiation factor activity / class I DNA-(apurinic or apyrimidinic site) endonuclease activity / DNA-(apurinic or apyrimidinic site) lyase / rescue of stalled ribosome / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / 90S preribosome / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / cellular response to leukemia inhibitory factor / maturation of SSU-rRNA / small-subunit processome / positive regulation of apoptotic signaling pathway / protein kinase C binding / positive regulation of protein-containing complex assembly / cytoplasmic stress granule / modification-dependent protein catabolic process / spindle / rRNA processing / protein tag activity / rhythmic process / positive regulation of canonical Wnt signaling pathway / ribosome binding / virus receptor activity / regulation of translation / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / small ribosomal subunit rRNA binding / perikaryon / cytosolic small ribosomal subunit / cytosolic large ribosomal subunit / mitochondrial inner membrane / cytoplasmic translation / postsynaptic density / cell differentiation / rRNA binding / ribosome / protein ubiquitination / structural constituent of ribosome / ribonucleoprotein complex / iron ion binding / translation / positive regulation of protein phosphorylation / cell cycle / cell division / DNA repair / centrosome / mRNA binding / apoptotic process / ubiquitin protein ligase binding / synapse / dendrite / nucleolus / perinuclear region of cytoplasm / Golgi apparatus / ATP hydrolysis activity / DNA binding / RNA binding / zinc ion binding / ATP binding / membrane / nucleus / metal ion binding / plasma membrane / cytoplasm / cytosol
Similarity search - Function
RLI, domain 1 / RLI1 / RNase L inhibitor RLI-like, possible metal-binding domain / Possible Fer4-like domain in RNase L inhibitor, RLI / Translation initiation factor 1A (eIF-1A), conserved site / Eukaryotic initiation factor 1A signature. / eukaryotic translation initiation factor 1A / Translation initiation factor 1A (eIF-1A) / IF2a, S1-like domain / Translation initiation factor 2, alpha subunit ...RLI, domain 1 / RLI1 / RNase L inhibitor RLI-like, possible metal-binding domain / Possible Fer4-like domain in RNase L inhibitor, RLI / Translation initiation factor 1A (eIF-1A), conserved site / Eukaryotic initiation factor 1A signature. / eukaryotic translation initiation factor 1A / Translation initiation factor 1A (eIF-1A) / IF2a, S1-like domain / Translation initiation factor 2, alpha subunit / Translation initiation factor 2, alpha subunit, middle domain superfamily / Translation initiation factor 2, alpha subunit, C-terminal / Eukaryotic translation initiation factor 2 alpha subunit / RNA-binding domain, S1, IF1 type / Translation initiation factor 1A / IF-1 / S1 domain IF1 type profile. / 4Fe-4S binding domain / 40S ribosomal protein SA / 40S ribosomal protein SA, C-terminal domain / 40S ribosomal protein SA C-terminus / Ubiquitin-like protein FUBI / : / Ribosomal protein S26e signature. / S1 domain profile. / : / Ribosomal protein L41 / Ribosomal protein L41 / Ribosomal protein S26e / Ribosomal protein S26e superfamily / Ribosomal protein S26e / Ribosomal protein S21e, conserved site / Ribosomal protein S21e signature. / Ribosomal protein S12e signature. / Ribosomal protein S12e / Ribosomal protein S19e, conserved site / Ribosomal protein S19e signature. / Small (40S) ribosomal subunit Asc1/RACK1 / Ribosomal protein S2, eukaryotic / Ribosomal protein S21e / Ribosomal protein S21e superfamily / Ribosomal protein S21e / 40S Ribosomal protein S10 / S27a-like superfamily / Ribosomal protein S10, eukaryotic/archaeal / Plectin/S10, N-terminal / Plectin/S10 domain / Ribosomal protein S25 / S25 ribosomal protein / Ribosomal protein S2, eukaryotic/archaeal / : / Ribosomal protein S17e, conserved site / Ribosomal protein S17e signature. / Ribosomal protein S27a / Ribosomal protein S27a / Ribosomal protein S27a / Ribosomal protein S8e subdomain, eukaryotes / Ribosomal protein S30 / Ribosomal protein S30 / 40S ribosomal protein S29/30S ribosomal protein S14 type Z / Ribosomal protein S7e signature. / Ribosomal protein S3, eukaryotic/archaeal / Ribosomal protein S19e / Ribosomal protein S3Ae, conserved site / Ribosomal protein S19e / Ribosomal protein S3Ae signature. / Ribosomal_S19e / Ribosomal protein S27e signature. / Ribosomal protein S4e, N-terminal, conserved site / Ribosomal protein S4e signature. / 40S ribosomal protein S4, C-terminal domain / 40S ribosomal protein S4 C-terminus / Ribosomal protein S19A/S15e / Ribosomal protein S8e, conserved site / Ribosomal protein S8e signature. / Ribosomal protein S17e / Ribosomal protein S17e-like superfamily / Ribosomal S17 / Ribosomal protein S6, eukaryotic / 40S ribosomal protein S1/3, eukaryotes / Ribosomal protein S4e, N-terminal / RS4NT (NUC023) domain / Ribosomal S24e conserved site / Ribosomal protein S24e signature. / 40S ribosomal protein S11, N-terminal / Ribosomal_S17 N-terminal / Ribosomal protein S7e / Ribosomal protein S7e / Ribosomal protein S4, KOW domain / Ribosomal protein S4e / Ribosomal protein S4e, central region / Ribosomal protein S4e, central domain superfamily / Ribosomal family S4e / Ribosomal protein S27, zinc-binding domain superfamily / Ribosomal protein S24e / Ribosomal protein S23, eukaryotic/archaeal / Ribosomal protein S24e / Ribosomal protein S6/S6e/A/B/2, conserved site / Ribosomal protein S6e signature. / Ribosomal protein S27 / Ribosomal protein S27
Similarity search - Domain/homology
RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Small ribosomal subunit protein eS32 / 40S ribosomal protein S6 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein eS12 / ATP binding cassette subfamily E member 1 / Small ribosomal subunit protein uS9 ...RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Small ribosomal subunit protein eS32 / 40S ribosomal protein S6 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein eS12 / ATP binding cassette subfamily E member 1 / Small ribosomal subunit protein uS9 / Small ribosomal subunit protein uS10 / Small ribosomal subunit protein RACK1 / Ubiquitin-ribosomal protein eS31 fusion protein / Small ribosomal subunit protein uS15 / Small ribosomal subunit protein eS7 / Eukaryotic translation initiation factor 4C / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS11 / Eukaryotic translation initiation factor 2 subunit 1 / Ubiquitin-like FUBI-ribosomal protein eS30 fusion protein / Small ribosomal subunit protein eS25 / Small ribosomal subunit protein eS26 / Small ribosomal subunit protein uS8 / Small ribosomal subunit protein eS28 / Small ribosomal subunit protein eS8 / Small ribosomal subunit protein eS4 / Small ribosomal subunit protein uS2 / Small ribosomal subunit protein eS19 / Small ribosomal subunit protein eS1 / Small ribosomal subunit protein uS3 / Small ribosomal subunit protein uS13 / Small ribosomal subunit protein eS10 / Small ribosomal subunit protein uS17 / 40S ribosomal protein S24 / Small ribosomal subunit protein eS17 / Large ribosomal subunit protein uL30 / Small ribosomal subunit protein eS27 / Small ribosomal subunit protein uS19 / Small ribosomal subunit protein uS14 / Small ribosomal subunit protein eS21 / Small ribosomal subunit protein uS7
Similarity search - Component
Biological speciesOryctolagus cuniculus (rabbit)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.3 Å
AuthorsGuca, E. / Lima, L.H.F. / Boissier, F. / Hashem, Y.
Funding supportEuropean Union, 1items
OrganizationGrant numberCountry
European Research Council (ERC)European Union
CitationJournal: Mol Cell / Year: 2024
Title: N-methyladenosine in 5' UTR does not promote translation initiation.
Authors: Ewelina Guca / Rodrigo Alarcon / Michael Z Palo / Leonardo Santos / Santiago Alonso-Gil / Marcos Davyt / Leonardo H F de Lima / Fanny Boissier / Sarada Das / Bojan Zagrovic / Joseph D ...Authors: Ewelina Guca / Rodrigo Alarcon / Michael Z Palo / Leonardo Santos / Santiago Alonso-Gil / Marcos Davyt / Leonardo H F de Lima / Fanny Boissier / Sarada Das / Bojan Zagrovic / Joseph D Puglisi / Yaser Hashem / Zoya Ignatova /
Abstract: The most abundant N-methyladenosine (mA) modification on mRNAs is installed non-stoichiometrically across transcripts, with 5' untranslated regions (5' UTRs) being the least conductive. 5' UTRs are ...The most abundant N-methyladenosine (mA) modification on mRNAs is installed non-stoichiometrically across transcripts, with 5' untranslated regions (5' UTRs) being the least conductive. 5' UTRs are essential for translation initiation, yet the molecular mechanisms orchestrated by mA remain poorly understood. Here, we combined structural, biochemical, and single-molecule approaches and show that at the most common position, a single mA does not affect translation yields, the kinetics of translation initiation complex assembly, or start codon recognition both under permissive growth and following exposure to oxidative stress. Cryoelectron microscopy (cryo-EM) structures of the late preinitiation complex reveal that mA purine ring established stacking interactions with an arginine side chain of the initiation factor eIF2α, although with only a marginal energy contribution, as estimated computationally. These findings provide molecular insights into mA interactions with the initiation complex and suggest that the subtle stabilization is unlikely to affect the translation dynamics under homeostatic conditions or stress.
History
DepositionMay 9, 2023Deposition site: PDBE / Processing site: PDBE
Revision 1.0Mar 20, 2024Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
1: initiator methionylated tRNA
2: 18S ribosomal RNA
3: mRNA
A: Eukaryotic translation initiation factor 2 subunit 1
C: 40S ribosomal protein SA
D: ribosomal protein eS1
E: 40S ribosomal protein S2
F: Ribosomal protein S3
G: 40S ribosomal protein S4
H: Ribosomal protein S5
I: 40S ribosomal protein S6
J: ribosomal protein eS7
K: 40S ribosomal protein S8
L: 40S ribosomal protein S9
M: 40S ribosomal protein eS10
N: 40S ribosomal protein S11
O: 40S ribosomal protein S12
P: ribosomal protein uS15
Q: 40S ribosomal protein uS11
R: 40S ribosomal protein uS19
S: 40S ribosomal protein uS9
T: 40S ribosomal protein eS17
U: 40S ribosomal protein uS13
V: 40S ribosomal protein eS19
W: 40S ribosomal protein uS10
X: 40S ribosomal protein S21
Y: Ribosomal protein S15a
Z: 40S ribosomal protein S23
a: 40S ribosomal protein S24
b: 40S ribosomal protein S26
c: 40S ribosomal protein S27
d: 40S ribosomal protein S28
e: 40S ribosomal protein S29
f: ribosomal protein eS31
g: Ribosomal protein RACK1
i: 40S ribosomal protein S30
j: Eukaryotic translation initiation factor 4C
k: ATP binding cassette subfamily E member 1
l: 60S ribosomal protein L41
n: 40S ribosomal protein S25
hetero molecules


Theoretical massNumber of molelcules
Total (without water)1,336,466270
Polymers1,330,87640
Non-polymers5,590230
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area229040 Å2
ΔGint-3183 kcal/mol
Surface area473200 Å2
MethodPISA

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Components

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RNA chain , 3 types, 3 molecules 123

#1: RNA chain initiator methionylated tRNA


Mass: 24376.625 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit)
#2: RNA chain 18S ribosomal RNA


Mass: 601015.688 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit)
#3: RNA chain mRNA


Mass: 2854.783 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit)

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Eukaryotic translation initiation factor ... , 2 types, 2 molecules Aj

#4: Protein Eukaryotic translation initiation factor 2 subunit 1


Mass: 32792.867 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1T2G4
#37: Protein Eukaryotic translation initiation factor 4C


Mass: 12788.764 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1SYS4

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40S ribosomal protein ... , 25 types, 25 molecules CEGIKLMNOQRSTUVWXZabcdein

#5: 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 / Laminin receptor 1 / LamR / Laminin-binding protein precursor p40 / LBP/p40


Mass: 23273.713 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1TLT8
#7: Protein 40S ribosomal protein S2


Mass: 29099.955 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1TUT9
#9: Protein 40S ribosomal protein S4


Mass: 29658.920 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1TK17
#11: Protein 40S ribosomal protein S6


Mass: 27475.523 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: A0A5K1UJS7
#13: Protein 40S ribosomal protein S8


Mass: 23902.871 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1TJW1
#14: Protein 40S ribosomal protein S9


Mass: 22641.564 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: B7NZS8
#15: Protein 40S ribosomal protein eS10


Mass: 11773.953 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1TPV3
#16: Protein 40S ribosomal protein S11


Mass: 18468.826 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1TRM4
#17: Protein 40S ribosomal protein S12


Mass: 14538.987 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1SFR8
#19: Protein 40S ribosomal protein uS11


Mass: 16302.772 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1T1F0
#20: Protein 40S ribosomal protein uS19


Mass: 17049.182 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1U0Q2
#21: Protein 40S ribosomal protein uS9


Mass: 15975.753 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1SGX4
#22: Protein 40S ribosomal protein eS17


Mass: 15552.119 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1TU13
#23: Protein 40S ribosomal protein uS13


Mass: 17759.777 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1TPG3
#24: Protein 40S ribosomal protein eS19


Mass: 15812.286 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1TN62
#25: Protein 40S ribosomal protein uS10


Mass: 13398.763 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1SIZ2
#26: Protein 40S ribosomal protein S21


Mass: 9124.389 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: Q32PB8
#28: Protein 40S ribosomal protein S23 / RPS23


Mass: 15844.666 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1SZ47
#29: Protein 40S ribosomal protein S24


Mass: 15434.267 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1TS40
#30: Protein 40S ribosomal protein S26


Mass: 12961.455 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1TFE8
#31: Protein 40S ribosomal protein S27


Mass: 9480.186 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1TZ76
#32: Protein 40S ribosomal protein S28


Mass: 7855.052 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1TIB4
#33: Protein 40S ribosomal protein S29 / uS14


Mass: 6690.821 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1U7M4
#36: Protein 40S ribosomal protein S30


Mass: 14498.884 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1T8A2
#40: Protein 40S ribosomal protein S25


Mass: 13645.028 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1TDB3

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Ribosomal protein ... , 8 types, 8 molecules DFHJPYfg

#6: Protein ribosomal protein eS1


Mass: 24944.408 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1TN72
#8: Protein Ribosomal protein S3


Mass: 25158.535 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit)
References: UniProt: G1TNM3, DNA-(apurinic or apyrimidinic site) lyase
#10: Protein Ribosomal protein S5


Mass: 21525.941 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: U3KMN4
#12: Protein ribosomal protein eS7


Mass: 21716.387 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1SVB0
#18: Protein ribosomal protein uS15


Mass: 17128.191 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1SP51
#27: Protein Ribosomal protein S15a


Mass: 14865.555 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1TG89
#34: Protein ribosomal protein eS31


Mass: 8358.903 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1SK22
#35: Protein Ribosomal protein RACK1


Mass: 34669.113 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1SJB4

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Protein / Protein/peptide / Non-polymers , 3 types, 232 molecules kl

#38: Protein ATP binding cassette subfamily E member 1


Mass: 66986.812 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: G1SG72
#39: Protein/peptide 60S ribosomal protein L41


Mass: 3473.451 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / References: UniProt: A0A087WNH4
#41: Chemical...
ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 230 / Source method: obtained synthetically / Formula: Mg

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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: 48S late-stage initiation complex with non methylated mRNA
Type: RIBOSOME / Entity ID: #1-#40 / Source: NATURAL
Source (natural)Organism: Oryctolagus cuniculus (rabbit)
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 4 K

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Electron microscopy imaging

Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company
MicroscopyModel: FEI TALOS ARCTICA
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM
Electron lensMode: OTHER / Nominal defocus max: 2300 nm / Nominal defocus min: 300 nm
Image recordingElectron dose: 45 e/Å2 / Film or detector model: GATAN K2 QUANTUM (4k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 74515 / Symmetry type: POINT

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