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- PDB-9no7: Cryo-EM structure of the wild-type Thermus thermophilus 70S ribos... -

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Basic information

Entry
Database: PDB / ID: 9no7
TitleCryo-EM structure of the wild-type Thermus thermophilus 70S ribosome in complex with mRNA, A-site Q230-N5-methylated Release Factor 1, and P-site 2'-deoxy-A76-fMEAAAKC-peptidyl-tRNAcys at 2.13A resolution
Components
  • (30S ribosomal protein ...) x 20
  • (50S ribosomal protein ...) x 29
  • (P-site Peptidyl-tRNA fMEAAAKC-tRNAcys ...) x 2
  • 16S Ribosomal RNA
  • 23S Ribosomal RNA
  • 5S Ribosomal RNA
  • CYS-Stop mRNA
  • Peptide chain release factor 1
KeywordsRIBOSOME / Translation termination / peptide release / release factor / hydrolysis / peptidyl-tRNA / 70S ribosome / cryo-EM / pre-termination state / peptidyl transferase center
Function / homology
Function and homology information


translation release factor activity, codon specific / large ribosomal subunit / transferase activity / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / small ribosomal subunit rRNA binding / ribosomal large subunit assembly / large ribosomal subunit rRNA binding ...translation release factor activity, codon specific / large ribosomal subunit / transferase activity / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / small ribosomal subunit rRNA binding / ribosomal large subunit assembly / large ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / negative regulation of translation / rRNA binding / structural constituent of ribosome / ribosome / translation / ribonucleoprotein complex / mRNA binding / zinc ion binding / metal ion binding / cytosol / cytoplasm
Similarity search - Function
Peptide chain release factor 1 / : / Peptide chain release factor / PCRF domain / PCRF / Peptide chain release factor class I superfamily / Prokaryotic-type class I peptide chain release factors signature. / : / Peptide chain release factor class I / RF-1 domain ...Peptide chain release factor 1 / : / Peptide chain release factor / PCRF domain / PCRF / Peptide chain release factor class I superfamily / Prokaryotic-type class I peptide chain release factors signature. / : / Peptide chain release factor class I / RF-1 domain / 30S ribosomal protein Thx / 30S ribosomal protein Thx / 30S ribosomal protein / Ribosomal protein L25, long-form / Ribosomal protein L25, beta domain / Ribosomal protein L25, C-terminal / Ribosomal protein TL5, C-terminal domain / : / Ribosomal protein S14, type Z / Ribosomal protein L31 type A / Ribosomal protein L31 signature. / Ribosomal protein L31 / Ribosomal protein L31 superfamily / Ribosomal protein L31 / Ribosomal protein L9 signature. / Ribosomal protein L9, bacteria/chloroplast / Ribosomal protein L9, C-terminal / Ribosomal protein L9, C-terminal domain / Ribosomal protein L9, C-terminal domain superfamily / Ribosomal L25p family / Ribosomal protein L25 / Ribosomal protein L36 signature. / Ribosomal protein L32p, bacterial type / Ribosomal protein L25/Gln-tRNA synthetase, N-terminal / Ribosomal protein L25/Gln-tRNA synthetase, anti-codon-binding domain superfamily / Ribosomal protein L9, N-terminal domain superfamily / Ribosomal protein L9 / : / Ribosomal protein L9, N-terminal / Ribosomal protein L9, N-terminal domain / Ribosomal protein L33, conserved site / Ribosomal protein L33 signature. / Ribosomal protein L35, conserved site / Ribosomal protein L35 signature. / Ribosomal protein L28 / Ribosomal protein L35, non-mitochondrial / Ribosomal protein L18, bacterial-type / : / Ribosomal protein L6, bacterial-type / Ribosomal protein S19, bacterial-type / Ribosomal protein S3, bacterial-type / Ribosomal protein S13, bacterial-type / Ribosomal protein S6, conserved site / Ribosomal protein S6 signature. / Ribosomal protein L9/RNase H1, N-terminal / Ribosomal protein S7, bacterial/organellar-type / Ribosomal protein S11, bacterial-type / Ribosomal protein L5, bacterial-type / Ribosomal protein S20 / Ribosomal protein S20 superfamily / Ribosomal protein S20 / Ribosomal protein L36 / Ribosomal protein L36 superfamily / Ribosomal protein L36 / Ribosomal protein S14/S29 / Ribosomal protein S4, bacterial-type / Ribosomal protein L19, conserved site / Ribosomal protein L19 signature. / 30S ribosomal protein S17 / Ribosomal protein L27, conserved site / Ribosomal protein L27 signature. / Ribosomal protein S5, bacterial-type / Ribosomal protein S6, plastid/chloroplast / Ribosomal protein L20 signature. / Ribosomal protein L22, bacterial/chloroplast-type / Ribosomal protein L14P, bacterial-type / Ribosomal protein L34, conserved site / Ribosomal protein L34 signature. / Ribosomal protein S2, bacteria/mitochondria/plastid / Ribosomal protein L2, bacterial/organellar-type / Ribosomal protein L35 / Ribosomal protein L35 superfamily / Ribosomal protein L35 / Ribosomal protein L33 / Ribosomal protein L33 / Ribosomal L28 family / Ribosomal protein L18 / Ribosomal L18 of archaea, bacteria, mitoch. and chloroplast / Ribosomal protein L33 superfamily / Ribosomal protein S9, bacterial/plastid / Ribosomal protein L16 / Ribosomal protein L28/L24 / Ribosomal protein S18, conserved site / Ribosomal protein S18 signature. / Ribosomal protein L30, bacterial-type / Ribosomal protein S16 / Ribosomal protein S16 domain superfamily / Ribosomal protein S16 / L28p-like / Ribosomal protein S15, bacterial-type
Similarity search - Domain/homology
: / IRON/SULFUR CLUSTER / : / : / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Small ribosomal subunit protein uS14 / Small ribosomal subunit protein uS17 ...: / IRON/SULFUR CLUSTER / : / : / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Small ribosomal subunit protein uS14 / Small ribosomal subunit protein uS17 / Large ribosomal subunit protein uL6 / Small ribosomal subunit protein uS8 / Small ribosomal subunit protein uS7 / Large ribosomal subunit protein bL33 / Large ribosomal subunit protein uL2 / Large ribosomal subunit protein uL13 / Large ribosomal subunit protein uL16 / Large ribosomal subunit protein bL19 / Large ribosomal subunit protein bL20 / Large ribosomal subunit protein bL21 / Large ribosomal subunit protein bL27 / Large ribosomal subunit protein bL28 / Large ribosomal subunit protein bL32 / Large ribosomal subunit protein bL34 / Small ribosomal subunit protein uS2 / Small ribosomal subunit protein uS3 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein uS9 / Small ribosomal subunit protein uS11 / Small ribosomal subunit protein uS13 / Small ribosomal subunit protein bS20 / Peptide chain release factor 1 / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS10 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein uL4 / Large ribosomal subunit protein uL23 / Small ribosomal subunit protein uS19 / Large ribosomal subunit protein uL22 / Large ribosomal subunit protein uL29 / Large ribosomal subunit protein uL14 / Large ribosomal subunit protein uL24 / Large ribosomal subunit protein uL5 / Large ribosomal subunit protein uL18 / Small ribosomal subunit protein uS5 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein bL36 / Large ribosomal subunit protein bL25 / Small ribosomal subunit protein bTHX / Small ribosomal subunit protein uS15 / Large ribosomal subunit protein bL31 / Small ribosomal subunit protein bS16 / Large ribosomal subunit protein bL35 / Small ribosomal subunit protein bS6 / Small ribosomal subunit protein bS18 / Large ribosomal subunit protein bL9 / Large ribosomal subunit protein bL17
Similarity search - Component
Biological speciesThermus thermophilus HB8 (bacteria)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.13 Å
AuthorsAleksandrova, E.V. / Syroegin, E.A. / Basu, R.S. / Vassilevski, A.A. / Gagnon, M.G. / Polikanov, Y.S.
Funding support United States, 6items
OrganizationGrant numberCountry
National Science Foundation (NSF, United States)MCB-1907273 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01-GM132302 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35-GM151957 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01-GM136936 United States
Other governmentUniversity of Illinois Startup Funds
Welch FoundationH-2032-20230405 United States
CitationJournal: Science / Year: 2025
Title: Mechanism of release factor-mediated peptidyl-tRNA hydrolysis on the ribosome.
Authors: Elena V Aleksandrova / Egor A Syroegin / Ritwika S Basu / Alexander A Vassilevski / Matthieu G Gagnon / Yury S Polikanov /
Abstract: Translation termination is essential in all living organisms because it ensures that proteins have lengths strictly defined by their genes. This universal process is mediated by peptide release ...Translation termination is essential in all living organisms because it ensures that proteins have lengths strictly defined by their genes. This universal process is mediated by peptide release factors (RFs) that recognize stop codons and catalyze the hydrolysis of peptidyl transfer RNA (peptidyl-tRNA) on the ribosome, presumably by activating a water molecule. We report structures of the bacterial ribosome in complex with peptidyl-tRNA and RFs in the prepeptide release state. No hydrolytic water molecule was seen in the peptidyl transferase center. Instead, RFs induced rearrangements of the peptidyl-tRNA adenine 76 (A76) ribose pucker that orient the 2'-OH for the nucleophilic attack onto the neighboring carbonyl group. These findings suggest a catalytic mechanism of RF-mediated peptide release and provide a structural basis for the universal conservation of the catalytic domain in peptide RFs.
History
DepositionMar 8, 2025Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 18, 2025Provider: repository / Type: Initial release
Revision 1.1Jul 2, 2025Group: Data collection / Database references / Category: citation / citation_author / em_admin
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_PubMed / _citation.title / _citation_author.identifier_ORCID / _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: 23S Ribosomal RNA
B: 5S Ribosomal RNA
D: 50S ribosomal protein L2
E: 50S ribosomal protein L3
F: 50S ribosomal protein L4
G: 50S ribosomal protein L5
H: 50S ribosomal protein L6
I: 50S ribosomal protein L9
N: 50S ribosomal protein L13
O: 50S ribosomal protein L14
P: 50S ribosomal protein L15
Q: 50S ribosomal protein L16
R: 50S ribosomal protein L17
S: 50S ribosomal protein L18
T: 50S ribosomal protein L19
U: 50S ribosomal protein L20
V: 50S ribosomal protein L21
W: 50S ribosomal protein L22
X: 50S ribosomal protein L23
Y: 50S ribosomal protein L24
Z: 50S ribosomal protein L25
0: 50S ribosomal protein L27
1: 50S ribosomal protein L28
2: 50S ribosomal protein L29
3: 50S ribosomal protein L30
4: 50S ribosomal protein L31
5: 50S ribosomal protein L32
6: 50S ribosomal protein L33
7: 50S ribosomal protein L34
8: 50S ribosomal protein L35
9: 50S ribosomal protein L36
a: 16S Ribosomal RNA
b: 30S ribosomal protein S2
c: 30S ribosomal protein S3
d: 30S ribosomal protein S4
e: 30S ribosomal protein S5
f: 30S ribosomal protein S6
g: 30S ribosomal protein S7
h: 30S ribosomal protein S8
i: 30S ribosomal protein S9
j: 30S ribosomal protein S10
k: 30S ribosomal protein S11
l: 30S ribosomal protein S12
m: 30S ribosomal protein S13
n: 30S ribosomal protein S14 type Z
o: 30S ribosomal protein S15
p: 30S ribosomal protein S16
q: 30S ribosomal protein S17
r: 30S ribosomal protein S18
s: 30S ribosomal protein S19
t: 30S ribosomal protein S20
u: 30S ribosomal protein Thx
v: CYS-Stop mRNA
w: Peptide chain release factor 1
x: P-site Peptidyl-tRNA fMEAAAKC-tRNAcys RNA-part
z: P-site Peptidyl-tRNA fMEAAAKC-tRNAcys Peptide-part
hetero molecules


Theoretical massNumber of molelcules
Total (without water)2,284,8711800
Polymers2,241,14056
Non-polymers43,7311744
Water85,7334759
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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RNA chain , 4 types, 4 molecules ABav

#1: RNA chain 23S Ribosomal RNA


Mass: 948007.562 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: GenBank: 55771382
#2: RNA chain 5S Ribosomal RNA


Mass: 39188.371 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: GenBank: AP008226.1
#32: RNA chain 16S Ribosomal RNA


Mass: 493863.625 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: GenBank: 55771382
#53: RNA chain CYS-Stop mRNA


Mass: 7827.775 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria)

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50S ribosomal protein ... , 29 types, 29 molecules DEFGHINOPQRSTUVWXYZ0123456789

#3: Protein 50S ribosomal protein L2


Mass: 30532.551 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P60405
#4: Protein 50S ribosomal protein L3


Mass: 22450.213 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SHN8
#5: Protein 50S ribosomal protein L4 / L1e


Mass: 23271.914 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SHN9
#6: Protein 50S ribosomal protein L5


Mass: 21061.596 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SHQ0
#7: Protein 50S ribosomal protein L6


Mass: 19568.926 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P0DOY8
#8: Protein 50S ribosomal protein L9


Mass: 16422.180 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SLQ1
#9: Protein 50S ribosomal protein L13


Mass: 15927.903 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P60488
#10: Protein 50S ribosomal protein L14


Mass: 13323.612 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SHP8
#11: Protein 50S ribosomal protein L15


Mass: 16319.142 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SHQ7
#12: Protein 50S ribosomal protein L16


Mass: 15993.909 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P60489
#13: Protein 50S ribosomal protein L17


Mass: 13750.148 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q9Z9H5
#14: Protein 50S ribosomal protein L18 / TL24


Mass: 12639.845 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SHQ4
#15: Protein 50S ribosomal protein L19


Mass: 17188.830 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P60490
#16: Protein 50S ribosomal protein L20


Mass: 13779.275 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P60491
#17: Protein 50S ribosomal protein L21


Mass: 11069.153 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P60492
#18: Protein 50S ribosomal protein L22


Mass: 12808.055 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SHP3
#19: Protein 50S ribosomal protein L23


Mass: 10759.808 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SHP0
#20: Protein 50S ribosomal protein L24


Mass: 12085.611 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SHP9
#21: Protein 50S ribosomal protein L25 / TL5


Mass: 23238.572 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SHZ1
#22: Protein 50S ribosomal protein L27


Mass: 9529.074 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P60493
#23: Protein 50S ribosomal protein L28


Mass: 11004.160 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P60494
#24: Protein 50S ribosomal protein L29


Mass: 8670.258 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SHP6
#25: Protein 50S ribosomal protein L30


Mass: 6799.126 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SHQ6
#26: Protein 50S ribosomal protein L31


Mass: 8300.543 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SJE1
#27: Protein 50S ribosomal protein L32


Mass: 6722.050 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P80339
#28: Protein 50S ribosomal protein L33


Mass: 6632.896 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P35871
#29: Protein/peptide 50S ribosomal protein L34


Mass: 6132.449 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P80340
#30: Protein 50S ribosomal protein L35


Mass: 7506.178 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SKU1
#31: Protein/peptide 50S ribosomal protein L36 / Ribosomal protein B


Mass: 4435.411 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SHR2

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30S ribosomal protein ... , 20 types, 20 molecules bcdefghijklmnopqrstu

#33: Protein 30S ribosomal protein S2


Mass: 29317.703 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P80371
#34: Protein 30S ribosomal protein S3


Mass: 26751.076 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P80372
#35: Protein 30S ribosomal protein S4


Mass: 24373.447 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P80373
#36: Protein 30S ribosomal protein S5


Mass: 17583.416 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SHQ5
#37: Protein 30S ribosomal protein S6 / TS9


Mass: 11988.753 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SLP8
#38: Protein 30S ribosomal protein S7


Mass: 18050.973 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P17291
#39: Protein 30S ribosomal protein S8


Mass: 15868.570 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P0DOY9
#40: Protein 30S ribosomal protein S9


Mass: 14410.614 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P80374
#41: Protein 30S ribosomal protein S10


Mass: 11954.968 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SHN7
#42: Protein 30S ribosomal protein S11


Mass: 13737.868 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P80376
#43: Protein 30S ribosomal protein S12


Mass: 14683.476 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SHN3
#44: Protein 30S ribosomal protein S13


Mass: 14338.861 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P80377
#45: Protein 30S ribosomal protein S14 type Z


Mass: 7158.725 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P0DOY6
#46: Protein 30S ribosomal protein S15


Mass: 10578.407 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SJ76
#47: Protein 30S ribosomal protein S16


Mass: 10409.983 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SJH3
#48: Protein 30S ribosomal protein S17


Mass: 12325.655 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P0DOY7
#49: Protein 30S ribosomal protein S18


Mass: 10258.299 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SLQ0
#50: Protein 30S ribosomal protein S19


Mass: 10605.464 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SHP2
#51: Protein 30S ribosomal protein S20


Mass: 11736.143 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P80380
#52: Protein/peptide 30S ribosomal protein Thx / S31


Mass: 3350.030 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: Q5SIH3

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Protein , 1 types, 1 molecules w

#54: Protein Peptide chain release factor 1 / RF-1


Mass: 40167.559 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria) / References: UniProt: P96077

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P-site Peptidyl-tRNA fMEAAAKC-tRNAcys ... , 2 types, 2 molecules xz

#55: RNA chain P-site Peptidyl-tRNA fMEAAAKC-tRNAcys RNA-part


Mass: 23927.459 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria)
#56: Protein/peptide P-site Peptidyl-tRNA fMEAAAKC-tRNAcys Peptide-part


Mass: 751.891 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Thermus thermophilus HB8 (bacteria)

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Non-polymers , 5 types, 6503 molecules

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


Mass: 24.305 Da / Num. of mol.: 1685 / Source method: isolated from a natural source / Formula: Mg
#58: Chemical...
ChemComp-K / POTASSIUM ION


Mass: 39.098 Da / Num. of mol.: 52 / Source method: obtained synthetically / Formula: K
#59: Chemical
ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: Zn
#60: Chemical ChemComp-SF4 / IRON/SULFUR CLUSTER


Mass: 351.640 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Fe4S4
#61: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 4759 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestN
Has protein modificationY

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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: Thermus thermophilus 70S ribosome in complex with mRNA, A-site Q230-N5-methylated Release Factor 1, and P-site 2'-deoxy-A76-fMEAAAKC-peptidyl-tRNAcys
Type: RIBOSOME / Entity ID: #1-#56 / Source: NATURAL
Molecular weightExperimental value: NO
Source (natural)Organism: Thermus thermophilus (bacteria) / Strain: HB8
Buffer solutionpH: 7.6
Details: 5 mM HEPES-KOH, 50 mM KCl, 10 mM NH4Cl, 10 mM Mg(CH3COO)2
SpecimenConc.: 0.375 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid mesh size: 200 divisions/in. / Grid type: Quantifoil R2/1
VitrificationInstrument: LEICA EM GP / Cryogen name: ETHANE / Humidity: 85 % / Chamber temperature: 295 K

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal magnification: 105000 X / Nominal defocus max: 1800 nm / Nominal defocus min: 500 nm / Cs: 2.7 mm / C2 aperture diameter: 100 µm / Alignment procedure: COMA FREE
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingAverage exposure time: 1.1984 sec. / Electron dose: 39.7153 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 25104
EM imaging opticsEnergyfilter name: GIF Bioquantum / Energyfilter slit width: 20 eV

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Processing

EM software
IDNameVersionCategory
1cryoSPARC4.6.1particle selection
2SerialEMimage acquisition
3cryoSPARC4.6.1masking
4cryoSPARC4.6.1CTF correction
7UCSF Chimera1.17.3model fitting
8PHENIX1.19.2.4158model refinement
10cryoSPARC4.6.1initial Euler assignment
11cryoSPARC4.6.1final Euler assignment
12cryoSPARC4.6.1classification
13cryoSPARC4.6.13D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 2.13 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 617938 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT / Space: REAL
Atomic model buildingPDB-ID: 9MTP

9mtp


Accession code: 9MTP / Source name: PDB / Type: experimental model
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.003155304
ELECTRON MICROSCOPYf_angle_d0.596231792
ELECTRON MICROSCOPYf_dihedral_angle_d13.12959799
ELECTRON MICROSCOPYf_chiral_restr0.03629201
ELECTRON MICROSCOPYf_plane_restr0.00512710

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