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- PDB-8zdc: Cryo-EM structure of the human ubiquitylated pre-40S ribosome wit... -

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Basic information

Entry
Database: PDB / ID: 8zdc
TitleCryo-EM structure of the human ubiquitylated pre-40S ribosome with RIOK3
Components
  • (RNA-binding protein ...) x 2
  • (Small ribosomal subunit protein ...) x 30
  • 18S rRNA
  • Pre-rRNA-processing protein TSR1 homolog
  • Protein LTV1 homolog
  • Serine/threonine-protein kinase RIO3
  • Ubiquitin
KeywordsRIBOSOME / ubiquitylation / RIOK3
Function / homology
Function and homology information


cellular response to dsDNA / negative regulation of MDA-5 signaling pathway / caspase binding / endonucleolytic cleavage of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / oxidized pyrimidine DNA binding / response to TNF agonist / negative regulation of endoplasmic reticulum unfolded protein response / positive regulation of base-excision repair / positive regulation of respiratory burst involved in inflammatory response / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage ...cellular response to dsDNA / negative regulation of MDA-5 signaling pathway / caspase binding / endonucleolytic cleavage of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / oxidized pyrimidine DNA binding / response to TNF agonist / negative regulation of endoplasmic reticulum unfolded protein response / positive regulation of base-excision repair / 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 / 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 / cellular response to dsRNA / positive regulation of innate immune response / TNFR1-mediated ceramide production / negative regulation of DNA repair / negative regulation of RNA splicing / supercoiled DNA binding / neural crest cell differentiation / NF-kappaB complex / cysteine-type endopeptidase activator activity involved in apoptotic process / positive regulation of ubiquitin-protein transferase activity / oxidized purine DNA binding / negative regulation of intrinsic apoptotic signaling pathway in response to hydrogen peroxide / U3 snoRNA binding / negative regulation of bicellular tight junction assembly / regulation of establishment of cell polarity / ubiquitin-like protein conjugating enzyme binding / negative regulation of phagocytosis / rRNA modification in the nucleus and cytosol / Formation of the ternary complex, and subsequently, the 43S complex / erythrocyte homeostasis / cytoplasmic side of rough endoplasmic reticulum membrane / preribosome, small subunit precursor / laminin receptor activity / negative regulation of ubiquitin protein ligase activity / protein kinase A binding / ion channel inhibitor activity / Ribosomal scanning and start codon recognition / pigmentation / Translation initiation complex formation / positive regulation of mitochondrial depolarization / positive regulation of T cell receptor signaling pathway / fibroblast growth factor binding / negative regulation of Wnt signaling pathway / monocyte chemotaxis / positive regulation of activated T cell proliferation / negative regulation of translational frameshifting / Protein hydroxylation / TOR signaling / BH3 domain binding / SARS-CoV-1 modulates host translation machinery / regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / regulation of cell division / cellular response to ethanol / iron-sulfur cluster binding / mTORC1-mediated signalling / Peptide chain elongation / Selenocysteine synthesis / Formation of a pool of free 40S subunits / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Eukaryotic Translation Termination / ubiquitin ligase inhibitor activity / positive regulation of GTPase activity / Response of EIF2AK4 (GCN2) to amino acid deficiency / SRP-dependent cotranslational protein targeting to membrane / negative regulation of ubiquitin-dependent protein catabolic process / positive regulation of signal transduction by p53 class mediator / protein serine/threonine kinase inhibitor activity / Viral mRNA Translation / negative regulation of respiratory burst involved in inflammatory response / 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 / Major pathway of rRNA processing in the nucleolus and cytosol / phagocytic cup / regulation of translational fidelity / negative regulation of protein-containing complex assembly / 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 / negative regulation of protein binding / Nuclear events stimulated by ALK signaling in cancer / spindle assembly / positive regulation of intrinsic apoptotic signaling pathway / ribosomal small subunit export from nucleus / laminin binding / rough endoplasmic reticulum / translation regulator activity / positive regulation of cell cycle / translation initiation factor binding / gastrulation / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / signaling adaptor activity / Maturation of protein E
Similarity search - Function
Serine/threonine-protein kinase Rio3 / : / Putative WW-binding domain and destruction box / Putative WW-binding domain and destruction box / Nin one binding (NOB1) Zn-ribbon-like / Ribonuclease Nob1, eukaryote / NOB1 zinc finger-like superfamily / Nin one binding (NOB1) Zn-ribbon like / Ribonuclease, PIN domain / RNA-binding protein NOB1 ...Serine/threonine-protein kinase Rio3 / : / Putative WW-binding domain and destruction box / Putative WW-binding domain and destruction box / Nin one binding (NOB1) Zn-ribbon-like / Ribonuclease Nob1, eukaryote / NOB1 zinc finger-like superfamily / Nin one binding (NOB1) Zn-ribbon like / Ribonuclease, PIN domain / RNA-binding protein NOB1 / PIN domain of ribonuclease / Low temperature viability protein Ltv1 / Low temperature viability protein / RIO kinase, conserved site / RIO1/ZK632.3/MJ0444 family signature. / Tsr1, G-like domain / RIO kinase / RIO-like kinase / : / RIO domain / : / : / Eukaryotic type KH-domain (KH-domain type I) (327.11.2) / Large family of predicted nucleotide-binding domains / Ribosome biogenesis protein BMS1/TSR1, C-terminal / AARP2CN / Bms1/Tsr1-type G domain / Ribosome biogenesis protein Bms1/Tsr1 / 40S ribosome biogenesis protein Tsr1 and BMS1 C-terminal / AARP2CN (NUC121) domain / Bms1-type guanine nucleotide-binding (G) domain profile. / AARP2CN (NUC121) domain / Protein of unknown function (DUF663) / PIN domain / K Homology domain, type 1 superfamily / 40S ribosomal protein SA / 40S ribosomal protein SA, C-terminal domain / 40S ribosomal protein SA C-terminus / 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. / Ribosomal protein S5, eukaryotic/archaeal / Small (40S) ribosomal subunit Asc1/RACK1 / 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 S8e subdomain, eukaryotes / Ribosomal protein S10, eukaryotic/archaeal / Ribosomal protein S3Ae, conserved site / Ribosomal protein S3Ae signature. / Ribosomal protein S25 / S25 ribosomal protein / Ribosomal protein S17e, conserved site / Ribosomal protein S17e signature. / Ribosomal protein S27a / Ribosomal protein S27a / Ribosomal protein S27a / Ribosomal protein S2, eukaryotic/archaeal / 40S ribosomal protein S29/30S ribosomal protein S14 type Z / Ribosomal protein S27e signature. / 40S ribosomal protein S4, C-terminal domain / 40S ribosomal protein S4 C-terminus / Ribosomal protein S4e, N-terminal, conserved site / Ribosomal protein S4e signature. / Ribosomal protein S3, eukaryotic/archaeal / Ribosomal protein S8e, conserved site / Ribosomal protein S8e signature. / Ribosomal protein S19e / Ribosomal protein S19e / Ribosomal_S19e / Ribosomal protein S6, eukaryotic / Ribosomal protein S7e / Ribosomal protein S7e / 40S ribosomal protein S1/3, eukaryotes / Ribosomal protein S19A/S15e / 40S ribosomal protein S11, N-terminal / Ribosomal_S17 N-terminal / Ribosomal protein S17e / Ribosomal protein S17e-like superfamily / Ribosomal S17 / Ribosomal S24e conserved site / : / Ribosomal protein S24e signature. / Ribosomal protein S4e, N-terminal / RS4NT (NUC023) domain / Ribosomal protein S4, KOW domain / Ribosomal protein S4e / Ribosomal protein S4e, central region / Ribosomal protein S4e, central domain superfamily
Similarity search - Domain/homology
RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Serine/threonine-protein kinase RIO3 / 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 ...RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Serine/threonine-protein kinase RIO3 / 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 / 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 eS28 / Ubiquitin-ribosomal protein eS31 fusion protein / Small ribosomal subunit protein eS21 / Small ribosomal subunit protein RACK1 / Pre-rRNA-processing protein TSR1 homolog / Protein LTV1 homolog / RNA-binding protein PNO1 / RNA-binding protein NOB1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.8 Å
AuthorsHuang, Z. / Wang, M. / Li, Y. / Beckmann, R. / Cheng, J.
Funding support1items
OrganizationGrant numberCountry
Not funded
CitationJournal: Mol Cell / Year: 2025
Title: RIOK3 mediates the degradation of 40S ribosomes.
Authors: Zixuan Huang / Frances F Diehl / Mengjiao Wang / Yi Li / Aixia Song / Fei Xavier Chen / Nicolle A Rosa-Mercado / Roland Beckmann / Rachel Green / Jingdong Cheng /
Abstract: Cells tightly regulate ribosome homeostasis to adapt to changing environments. Ribosomes are degraded during stress, but the mechanisms responsible remain unclear. Here, we show that starvation ...Cells tightly regulate ribosome homeostasis to adapt to changing environments. Ribosomes are degraded during stress, but the mechanisms responsible remain unclear. Here, we show that starvation induces the selective depletion of 40S ribosomes following their ubiquitylation by the E3 ligase RNF10. The atypical kinase RIOK3 specifically recognizes these ubiquitylated 40S ribosomes through a unique ubiquitin-interacting motif, visualized by cryoelectron microscopy (cryo-EM). RIOK3 binding and ubiquitin recognition are essential for 40S ribosome degradation during starvation. RIOK3 induces the degradation of ubiquitylated 40S ribosomes through progressive decay of their 18S rRNA beginning at the 3' end, as revealed by cryo-EM structures of degradation intermediates. Together, these data define a pathway and mechanism for stress-induced degradation of 40S ribosomes, directly connecting ubiquitylation to regulation of ribosome homeostasis.
History
DepositionMay 1, 2024Deposition site: PDBJ / Processing site: PDBC
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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
2: 18S rRNA
R: Small ribosomal subunit protein eS17
A: Small ribosomal subunit protein uS2
B: Small ribosomal subunit protein eS1
C: Small ribosomal subunit protein uS5
E: Small ribosomal subunit protein eS4, X isoform
G: Small ribosomal subunit protein eS6
H: Small ribosomal subunit protein eS7
I: Small ribosomal subunit protein eS8
J: Small ribosomal subunit protein uS4
L: Small ribosomal subunit protein uS17
N: Small ribosomal subunit protein uS15
O: Small ribosomal subunit protein uS11
V: Small ribosomal subunit protein eS21
W: Small ribosomal subunit protein uS8
X: Small ribosomal subunit protein uS12
Y: Small ribosomal subunit protein eS24
b: Small ribosomal subunit protein eS27
x: RNA-binding protein PNO1
y: RNA-binding protein NOB1
u: Pre-rRNA-processing protein TSR1 homolog
t: Protein LTV1 homolog
d: Small ribosomal subunit protein uS14
D: Small ribosomal subunit protein uS3
F: Small ribosomal subunit protein uS7
K: Small ribosomal subunit protein eS10
M: Small ribosomal subunit protein eS12
P: Small ribosomal subunit protein uS19
Q: Small ribosomal subunit protein uS9
S: Small ribosomal subunit protein uS13
T: Small ribosomal subunit protein eS19
U: Small ribosomal subunit protein uS10
Z: Small ribosomal subunit protein eS25
c: Small ribosomal subunit protein eS28
g: Small ribosomal subunit protein RACK1
p: Serine/threonine-protein kinase RIO3
i: Ubiquitin
j: Ubiquitin
hetero molecules


Theoretical massNumber of molelcules
Total (without water)1,483,65340
Polymers1,483,52238
Non-polymers1312
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

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Small ribosomal subunit protein ... , 30 types, 30 molecules RABCEGHIJLNOVWXYbdDFKMPQSTUZcg

#2: Protein Small ribosomal subunit protein eS17 / 40S ribosomal protein S17


Mass: 15578.156 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P08708
#3: Protein Small ribosomal subunit protein uS2 / 37 kDa laminin receptor precursor / 37LRP / 37/67 kDa laminin receptor / LRP/LR / 40S ribosomal ...37 kDa laminin receptor precursor / 37LRP / 37/67 kDa laminin receptor / LRP/LR / 40S ribosomal protein SA / 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


Mass: 32883.938 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P08865
#4: Protein Small ribosomal subunit protein eS1 / 40S ribosomal protein S3a / 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
#5: Protein Small ribosomal subunit protein uS5 / 40S ribosomal protein S2 / 40S ribosomal protein S4 / Protein LLRep3


Mass: 31376.516 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P15880
#6: Protein Small ribosomal subunit protein eS4, X isoform / 40S ribosomal protein S4 / SCR10 / Single copy abundant mRNA protein


Mass: 29654.869 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62701
#7: Protein Small ribosomal subunit protein eS6 / 40S ribosomal protein S6 / Phosphoprotein NP33


Mass: 28751.906 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62753
#8: Protein Small ribosomal subunit protein eS7 / 40S ribosomal protein S7


Mass: 22168.914 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62081
#9: Protein Small ribosomal subunit protein eS8 / 40S ribosomal protein S8


Mass: 24263.387 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62241
#10: Protein Small ribosomal subunit protein uS4 / 40S ribosomal protein S9


Mass: 22641.564 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P46781
#11: Protein Small ribosomal subunit protein uS17 / 40S ribosomal protein S11


Mass: 18468.826 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62280
#12: Protein Small ribosomal subunit protein uS15 / 40S ribosomal protein S13


Mass: 17259.389 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62277
#13: Protein Small ribosomal subunit protein uS11 / 40S ribosomal protein S14


Mass: 16302.772 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62263
#14: Protein Small ribosomal subunit protein eS21 / 40S ribosomal protein S21


Mass: 9124.389 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P63220
#15: Protein Small ribosomal subunit protein uS8 / 40S ribosomal protein S15a


Mass: 14865.555 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62244
#16: Protein Small ribosomal subunit protein uS12 / 40S ribosomal protein S23


Mass: 15844.666 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62266
#17: Protein Small ribosomal subunit protein eS24 / 40S ribosomal protein S24


Mass: 15463.333 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62847
#18: Protein Small ribosomal subunit protein eS27 / 40S ribosomal protein S27 / Metallopan-stimulin 1 / MPS-1


Mass: 9480.186 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P42677
#23: Protein Small ribosomal subunit protein uS14 / 40S ribosomal protein S29


Mass: 6690.821 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62273
#24: Protein Small ribosomal subunit protein uS3 / 40S ribosomal protein S3


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
#25: Protein Small ribosomal subunit protein uS7 / 40S ribosomal protein S5


Mass: 22913.453 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P46782
#26: Protein Small ribosomal subunit protein eS10 / 40S ribosomal protein S10


Mass: 18933.846 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P46783
#27: Protein Small ribosomal subunit protein eS12 / 40S ribosomal protein S12


Mass: 14538.987 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P25398
#28: Protein Small ribosomal subunit protein uS19 / 40S ribosomal protein S15 / RIG protein


Mass: 17076.207 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62841
#29: Protein Small ribosomal subunit protein uS9 / 40S ribosomal protein S16


Mass: 16477.377 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62249
#30: Protein Small ribosomal subunit protein uS13 / 40S ribosomal protein S18 / Ke-3 / Ke3


Mass: 17759.777 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62269
#31: Protein Small ribosomal subunit protein eS19 / 40S ribosomal protein S19


Mass: 16091.562 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P39019
#32: Protein Small ribosomal subunit protein uS10 / 40S ribosomal protein S20


Mass: 13398.763 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P60866
#33: Protein Small ribosomal subunit protein eS25 / 40S ribosomal protein S25


Mass: 13776.224 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62851
#34: Protein Small ribosomal subunit protein eS28 / 40S ribosomal protein S28


Mass: 7855.052 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62857
#35: Protein Small ribosomal subunit protein RACK1 / 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 / Receptor of activated protein C kinase 1


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

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RNA-binding protein ... , 2 types, 2 molecules xy

#19: Protein RNA-binding protein PNO1 / Partner of NOB1


Mass: 27970.355 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9NRX1
#20: Protein RNA-binding protein NOB1 / Phosphorylation regulatory protein HP-10 / Protein ART-4


Mass: 46743.914 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human)
References: UniProt: Q9ULX3, Hydrolases; Acting on ester bonds

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Protein , 4 types, 5 molecules utpij

#21: Protein Pre-rRNA-processing protein TSR1 homolog


Mass: 91951.188 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q2NL82
#22: Protein Protein LTV1 homolog


Mass: 54935.891 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q96GA3
#36: Protein Serine/threonine-protein kinase RIO3 / RIO kinase 3 / sudD homolog


Mass: 59178.945 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human)
References: UniProt: O14730, non-specific serine/threonine protein kinase
#37: Protein Ubiquitin


Mass: 8576.831 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62979

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RNA chain / Non-polymers , 2 types, 3 molecules 2

#1: RNA chain 18S rRNA


Mass: 604100.750 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human)
#38: 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
Has protein modificationN

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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: ubiquitylated pre-40S ribosome with RIOK3 / Type: RIBOSOME / Entity ID: #1-#37 / Source: NATURAL
Source (natural)Organism: Homo sapiens (human)
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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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: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 58 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

EM softwareName: RELION / Category: CTF correction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 29221 / Symmetry type: POINT

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