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- PDB-9o2y: Structure of WT E.coli ribosome 70S subunit with complexed with m... -

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Basic information

Entry
Database: PDB / ID: 9o2y
TitleStructure of WT E.coli ribosome 70S subunit with complexed with mRNA, P-site fMet-NH-tRNAfMet and A-site (R) beta-2-hydroxy-BocLysine acid charged NH-tRNAPyl
Components
  • (50S ribosomal protein ...) x 14
  • (Large ribosomal subunit protein ...) x 15
  • (Small ribosomal subunit protein ...) x 19
  • 16S rRNA
  • 23S rRNA
  • 30S ribosomal protein S2
  • 5S rRNA
  • A-site tRNAPyl
  • P-site tRNA fMet
  • mRNA
KeywordsRIBOSOME / non-natural monomers / beta-2-hydroxy acids / unnatural monomers
Function / homology
Function and homology information


negative regulation of cytoplasmic translational initiation / transcriptional attenuation / endoribonuclease inhibitor activity / RNA-binding transcription regulator activity / negative regulation of cytoplasmic translation / DnaA-L2 complex / translation repressor activity / negative regulation of translational initiation / negative regulation of DNA-templated DNA replication initiation / mRNA regulatory element binding translation repressor activity ...negative regulation of cytoplasmic translational initiation / transcriptional attenuation / endoribonuclease inhibitor activity / RNA-binding transcription regulator activity / negative regulation of cytoplasmic translation / DnaA-L2 complex / translation repressor activity / negative regulation of translational initiation / negative regulation of DNA-templated DNA replication initiation / mRNA regulatory element binding translation repressor activity / ribosome assembly / transcription antitermination / translational initiation / DNA-templated transcription termination / response to radiation / maintenance of translational fidelity / mRNA 5'-UTR binding / large ribosomal subunit / transferase activity / ribosomal small subunit assembly / ribosomal small subunit biogenesis / 5S rRNA binding / small ribosomal subunit / ribosomal large subunit assembly / small ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / negative regulation of translation / rRNA binding / structural constituent of ribosome / ribosome / translation / ribonucleoprotein complex / response to antibiotic / negative regulation of DNA-templated transcription / mRNA binding / DNA binding / RNA binding / zinc ion binding / membrane / cytoplasm / cytosol
Similarity search - Function
Ribosomal protein S21, conserved site / Ribosomal protein S21 signature. / Ribosomal protein L25, short-form / Ribosomal protein S14, bacterial/plastid / Ribosomal protein L31 type A / Ribosomal protein S21 superfamily / Ribosomal protein S16, conserved site / Ribosomal protein S16 signature. / Ribosomal protein S21 / Ribosomal protein L31 signature. ...Ribosomal protein S21, conserved site / Ribosomal protein S21 signature. / Ribosomal protein L25, short-form / Ribosomal protein S14, bacterial/plastid / Ribosomal protein L31 type A / Ribosomal protein S21 superfamily / Ribosomal protein S16, conserved site / Ribosomal protein S16 signature. / Ribosomal protein S21 / Ribosomal protein L31 signature. / Ribosomal protein L31 / Ribosomal protein L31 superfamily / Ribosomal protein L31 / Ribosomal protein S21 / Ribosomal protein L16 signature 1. / Ribosomal protein L6, conserved site / Ribosomal protein L6 signature 1. / Ribosomal protein L9 signature. / Ribosomal protein L21, conserved site / Ribosomal protein L21 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 protein L16 signature 2. / Ribosomal protein L16, conserved site / Ribosomal protein L17 signature. / Ribosomal L25p family / Ribosomal protein L25 / Ribosomal protein L36 signature. / Ribosomal protein L25/Gln-tRNA synthetase, N-terminal / Ribosomal protein L25/Gln-tRNA synthetase, anti-codon-binding domain superfamily / Ribosomal protein L28/L24 superfamily / : / Ribosomal protein L33, conserved site / Ribosomal protein L33 signature. / Ribosomal protein L32p, bacterial type / Ribosomal protein L35, conserved site / Ribosomal protein L35 signature. / Ribosomal protein L9 / Ribosomal protein L9, N-terminal domain superfamily / Ribosomal protein L28 / Ribosomal protein L9, N-terminal / Ribosomal protein L9, N-terminal domain / Ribosomal protein L35, non-mitochondrial / Ribosomal protein L18, bacterial-type / : / Ribosomal protein S3, bacterial-type / : / Ribosomal protein S19, bacterial-type / Ribosomal protein S13, bacterial-type / Ribosomal protein S6, conserved site / Ribosomal protein S6 signature. / Ribosomal protein L6, bacterial-type / Ribosomal protein S7, bacterial/organellar-type / Ribosomal protein S11, bacterial-type / Ribosomal protein S20 / Ribosomal protein S20 superfamily / Ribosomal protein S20 / Ribosomal protein S4, bacterial-type / Ribosomal protein L5, bacterial-type / Ribosomal protein S5, bacterial-type / 30S ribosomal protein S17 / Ribosomal protein L9/RNase H1, N-terminal / Ribosomal protein L19, conserved site / Ribosomal protein L19 signature. / Ribosomal protein S6, plastid/chloroplast / Ribosomal protein L36 / Ribosomal protein L36 superfamily / Ribosomal protein L36 / Ribosomal protein L20 signature. / Ribosomal protein L34, conserved site / Ribosomal protein L34 signature. / Ribosomal protein L14P, bacterial-type / Ribosomal protein L27, conserved site / Ribosomal protein L27 signature. / Ribosomal protein S2, bacteria/mitochondria/plastid / Ribosomal protein L35 / Ribosomal protein L35 superfamily / Ribosomal protein L22, bacterial/chloroplast-type / Ribosomal protein L35 / Ribosomal protein L2, bacterial/organellar-type / Ribosomal protein L33 / Ribosomal protein L18 / Ribosomal L18 of archaea, bacteria, mitoch. and chloroplast / Ribosomal protein L33 / Ribosomal L28 family / Ribosomal protein S9, bacterial/plastid / Ribosomal protein L33 superfamily / Ribosomal protein S18, conserved site / Ribosomal protein S18 signature. / Ribosomal protein L28/L24 / Ribosomal protein S16 / Ribosomal protein L30, bacterial-type / Ribosomal protein S16 domain superfamily / Ribosomal protein S16 / L28p-like / Ribosomal protein S15, bacterial-type / Ribosomal protein L16
Similarity search - Domain/homology
: / N-FORMYLMETHIONINE / : / PAROMOMYCIN / SPERMIDINE / SPERMINE / : / : / : / : ...: / N-FORMYLMETHIONINE / : / PAROMOMYCIN / SPERMIDINE / SPERMINE / : / : / : / : / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Small ribosomal subunit protein bS18 / Large ribosomal subunit protein bL36 / Small ribosomal subunit protein bS21 / Small ribosomal subunit protein uS12 / Large ribosomal subunit protein bL28 / Small ribosomal subunit protein uS14 / Small ribosomal subunit protein uS13 / Large ribosomal subunit protein uL16 / Large ribosomal subunit protein bL20 / Small ribosomal subunit protein uS3 / Large ribosomal subunit protein bL34 / Large ribosomal subunit protein bL33 / Small ribosomal subunit protein uS10 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein uL23 / Small ribosomal subunit protein uS19 / Large ribosomal subunit protein uL29 / Small ribosomal subunit protein uS17 / Large ribosomal subunit protein uL24 / Small ribosomal subunit protein uS8 / Large ribosomal subunit protein uL30 / Small ribosomal subunit protein uS9 / Small ribosomal subunit protein uS15 / Small ribosomal subunit protein bS16 / Large ribosomal subunit protein bL32 / Small ribosomal subunit protein uS2 / Small ribosomal subunit protein bS20 / Small ribosomal subunit protein bS6 / Small ribosomal subunit protein uS7 / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein bL19 / Large ribosomal subunit protein bL27 / Large ribosomal subunit protein bL31 / Large ribosomal subunit protein bL35 / Large ribosomal subunit protein bL9 / Small ribosomal subunit protein uS11 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein uS5 / Large ribosomal subunit protein uL13 / Large ribosomal subunit protein uL14 / Large ribosomal subunit protein bL17 / Large ribosomal subunit protein uL6 / Large ribosomal subunit protein uL18 / Large ribosomal subunit protein uL2 / Large ribosomal subunit protein uL4 / Large ribosomal subunit protein uL5 / Large ribosomal subunit protein bL25 / Large ribosomal subunit protein uL22 / Large ribosomal subunit protein bL21
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
Methanomethylophilus alvi (archaea)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.14 Å
AuthorsMajumdar, C. / Cate, J.H.D.
Funding support United States, 1items
OrganizationGrant numberCountry
National Science Foundation (NSF, United States)CHE 2002182 United States
CitationJournal: J Am Chem Soc / Year: 2026
Title: Co-Translational Incorporation of - and -β-Hydroxy Acids : A Structural and Biochemical Study on the Ribosome.
Authors: Chandrima Majumdar / Alexandra D Kent / Noah X Hamlish / Cathy Zhu / Katelyn A Fitzgerald / Jamie H D Cate / Alanna Schepartz /
Abstract: Engineering the translation apparatus to accept backbone-modified amino acid analogues would enable the programmed synthesis of sequence-defined biopolymers with tunable properties. β-Hydroxy acids ...Engineering the translation apparatus to accept backbone-modified amino acid analogues would enable the programmed synthesis of sequence-defined biopolymers with tunable properties. β-Hydroxy acids are of particular interest because they could support the programmed biosynthesis of both biocompatible polyester materials as well as natural product-like depsipeptides. Previous work has reported that both enantiomers of β-hydroxy-N-Boc-lysine (β-OH-BocK) are substrates for the orthogonal pyrrolysyl-tRNA synthetase (PylRS)/tRNA pair, but only one enantiomer is introduced into protein . Here we make use of high-resolution cryogenic electron microscopy (cryo-EM) to determine the structural basis for this observation. These structures reveal both β-OH-BocK isomers equally well-positioned within the ribosomal A site regardless of stereochemistry. Consistent with this observation, translation reactions charged with tRNAs acylated with - or -β-OH-BocK produced roughly equal amounts of translated product when quantified on the basis of either mass spectrometry or luminescence. Together, these experiments imply that the substantial preferential incorporation of one enantiomer over the other observed previously results primarily from deficiencies in the steps that precede bond formation by the ribosome. Indeed, as predicted by this work and demonstrated in an accompanying paper (Soni, C. Co-Translational Incorporation of ()- and ()-β-Hydroxyacids : Directed Evolution of Efficient Aminoacyl-tRNA Synthetases. 2026, 148, 10.1021/jacs.5c18595), when cells are provided with an active and orthogonal aminoacyl-tRNA synthetase/tRNA pair that accepts both - and -β-OH-BocK as substrates, both monomers are introduced into protein in good yield and with high fidelity.
History
DepositionApr 4, 2025Deposition site: RCSB / Processing site: RCSB
Revision 1.0Mar 18, 2026Provider: repository / Type: Initial release
Revision 1.0Mar 18, 2026Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Mar 18, 2026Data content type: FSC / Data content type: FSC / Provider: repository / Type: Initial release
Revision 1.0Mar 18, 2026Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Mar 18, 2026Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: 16S rRNA
B: 30S ribosomal protein S2
C: Small ribosomal subunit protein uS3
D: Small ribosomal subunit protein uS4
E: Small ribosomal subunit protein uS5
F: Small ribosomal subunit protein bS6
G: Small ribosomal subunit protein uS7
H: Small ribosomal subunit protein uS8
I: Small ribosomal subunit protein uS9
J: Small ribosomal subunit protein uS10
K: Small ribosomal subunit protein uS11
L: Small ribosomal subunit protein uS12
M: Small ribosomal subunit protein uS13
N: Small ribosomal subunit protein uS14
O: Small ribosomal subunit protein uS15
P: Small ribosomal subunit protein bS16
Q: Small ribosomal subunit protein uS17
R: Small ribosomal subunit protein bS18
S: Small ribosomal subunit protein uS19
T: Small ribosomal subunit protein bS20
U: Small ribosomal subunit protein bS21
X: mRNA
Z: P-site tRNA fMet
a: 23S rRNA
b: 5S rRNA
c: 50S ribosomal protein L2
d: 50S ribosomal protein L3
e: Large ribosomal subunit protein uL4
f: Large ribosomal subunit protein uL5
g: Large ribosomal subunit protein uL6
h: Large ribosomal subunit protein bL9
i: Large ribosomal subunit protein uL13
j: Large ribosomal subunit protein uL14
k: Large ribosomal subunit protein uL15
l: 50S ribosomal protein L16
m: Large ribosomal subunit protein bL17
n: Large ribosomal subunit protein uL18
o: Large ribosomal subunit protein bL19
p: 50S ribosomal protein L20
q: Large ribosomal subunit protein bL21
r: Large ribosomal subunit protein uL22
s: 50S ribosomal protein L23
t: 50S ribosomal protein L24
u: Large ribosomal subunit protein bL25
v: Large ribosomal subunit protein bL27
w: 50S ribosomal protein L28
x: Large ribosomal subunit protein uL29
y: 50S ribosomal protein L30
z: 50S ribosomal protein L32
0: 50S ribosomal protein L33
1: 50S ribosomal protein L34
2: 50S ribosomal protein L35
3: 50S ribosomal protein L36
4: 50S ribosomal protein L31
Y: A-site tRNAPyl
hetero molecules


Theoretical massNumber of molelcules
Total (without water)2,208,815404
Polymers2,197,37155
Non-polymers11,444349
Water63,5393527
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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RNA chain , 6 types, 6 molecules AXZabY

#1: RNA chain 16S rRNA


Mass: 499873.406 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: GenBank: 1700704455
#22: RNA chain mRNA


Mass: 9099.502 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Escherichia coli (E. coli)
#23: RNA chain P-site tRNA fMet


Mass: 24841.826 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Escherichia coli (E. coli) / References: GenBank: 1804121330
#24: RNA chain 23S rRNA


Mass: 941811.562 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli)
#25: RNA chain 5S rRNA


Mass: 38790.090 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: GenBank: 1273279017
#55: RNA chain A-site tRNAPyl


Mass: 22896.670 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Methanomethylophilus alvi (archaea) / References: GenBank: 1721134198

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Protein , 1 types, 1 molecules B

#2: Protein 30S ribosomal protein S2


Mass: 26781.670 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3TPN2

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Small ribosomal subunit protein ... , 19 types, 19 molecules CDEFGHIJKLMNOPQRSTU

#3: Protein Small ribosomal subunit protein uS3


Mass: 26031.316 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: B7MCS9
#4: Protein Small ribosomal subunit protein uS4


Mass: 23514.199 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7V8
#5: Protein Small ribosomal subunit protein uS5


Mass: 17629.398 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7W1
#6: Protein Small ribosomal subunit protein bS6


Mass: 15727.512 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P02358
#7: Protein Small ribosomal subunit protein uS7


Mass: 20055.156 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P02359
#8: Protein Small ribosomal subunit protein uS8


Mass: 14146.557 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SR12
#9: Protein Small ribosomal subunit protein uS9


Mass: 14886.270 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SRY2
#10: Protein Small ribosomal subunit protein uS10


Mass: 11755.597 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SQT7
#11: Protein Small ribosomal subunit protein uS11 / 30S ribosomal protein S11


Mass: 13871.959 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7R9
#12: Protein Small ribosomal subunit protein uS12


Mass: 13814.249 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A0A0F1AUC4
#13: Protein Small ribosomal subunit protein uS13


Mass: 13128.467 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A0A7U9IV78
#14: Protein Small ribosomal subunit protein uS14


Mass: 11606.560 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A0A2X1PQW4
#15: Protein Small ribosomal subunit protein uS15


Mass: 10290.816 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SSQ7
#16: Protein Small ribosomal subunit protein bS16


Mass: 9207.572 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SYP2
#17: Protein Small ribosomal subunit protein uS17


Mass: 9724.491 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SQY7
#18: Protein Small ribosomal subunit protein bS18


Mass: 9005.472 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A0A0E2KXL3
#19: Protein Small ribosomal subunit protein uS19


Mass: 10455.355 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SQW2
#20: Protein Small ribosomal subunit protein bS20


Mass: 9708.464 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3TRH7
#21: Protein Small ribosomal subunit protein bS21


Mass: 8524.039 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A0A0E2L2J1

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50S ribosomal protein ... , 14 types, 14 molecules cdlpstwyz01234

#26: Protein 50S ribosomal protein L2 / Large ribosomal subunit protein uL2


Mass: 29923.619 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P60422
#27: Protein 50S ribosomal protein L3


Mass: 22291.562 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SQU2
#35: Protein 50S ribosomal protein L16


Mass: 15343.327 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A1AGK1
#39: Protein 50S ribosomal protein L20


Mass: 13528.024 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: B7MAS6
#42: Protein 50S ribosomal protein L23


Mass: 11222.160 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SQV2
#43: Protein 50S ribosomal protein L24


Mass: 11339.250 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SQZ7
#46: Protein 50S ribosomal protein L28


Mass: 9027.551 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A0A1X3JA73
#48: Protein 50S ribosomal protein L30


Mass: 6554.820 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SR32
#49: Protein 50S ribosomal protein L32


Mass: 6463.445 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3TE02
#50: Protein 50S ribosomal protein L33


Mass: 6388.631 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SME7
#51: Protein/peptide 50S ribosomal protein L34


Mass: 5397.463 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: B7MGC4
#52: Protein 50S ribosomal protein L35 / Large ribosomal subunit protein bL35 / Ribosomal protein A


Mass: 7313.032 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7Q1
#53: Protein/peptide 50S ribosomal protein L36


Mass: 4377.390 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: A0A0E2L017
#54: Protein 50S ribosomal protein L31 / Large ribosomal subunit protein bL31-A


Mass: 7887.117 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7M9

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Large ribosomal subunit protein ... , 15 types, 15 molecules efghijkmnoqruvx

#28: Protein Large ribosomal subunit protein uL4 / 50S ribosomal protein L4


Mass: 22121.566 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P60723
#29: Protein Large ribosomal subunit protein uL5 / 50S ribosomal protein L5


Mass: 20333.611 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P62399
#30: Protein Large ribosomal subunit protein uL6 / 50S ribosomal protein L6


Mass: 18932.791 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0AG55
#31: Protein Large ribosomal subunit protein bL9 / 50S ribosomal protein L9


Mass: 15789.020 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7R1
#32: Protein Large ribosomal subunit protein uL13 / 50S ribosomal protein L13


Mass: 16050.606 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0AA10
#33: Protein Large ribosomal subunit protein uL14 / 50S ribosomal protein L14


Mass: 13565.067 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0ADY3
#34: Protein Large ribosomal subunit protein uL15 / 50S ribosomal protein L15


Mass: 15008.471 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P02413
#36: Protein Large ribosomal subunit protein bL17 / 50S ribosomal protein L17


Mass: 14393.657 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0AG44
#37: Protein Large ribosomal subunit protein uL18 / 50S ribosomal protein L18


Mass: 12794.668 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0C018
#38: Protein Large ribosomal subunit protein bL19


Mass: 13159.278 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7K8
#40: Protein Large ribosomal subunit protein bL21 / 50S ribosomal protein L21


Mass: 11586.374 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: Q1R6F0
#41: Protein Large ribosomal subunit protein uL22 / 50S ribosomal protein L22


Mass: 12253.359 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: Q1R610
#44: Protein Large ribosomal subunit protein bL25


Mass: 10713.465 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P68919
#45: Protein Large ribosomal subunit protein bL27


Mass: 9146.540 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: P0A7M0
#47: Protein Large ribosomal subunit protein uL29


Mass: 7286.464 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / References: UniProt: C3SQY2

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Non-polymers , 9 types, 3876 molecules

#56: Chemical ChemComp-PAR / PAROMOMYCIN / PAROMOMYCIN I / AMMINOSIDIN / CATENULIN / CRESTOMYCIN / MONOMYCIN A / NEOMYCIN E


Mass: 615.628 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C23H45N5O14 / Comment: Antimicrobial, medication*YM
#57: Chemical...
ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 320 / Source method: obtained synthetically / Formula: Mg
#58: Chemical
ChemComp-SPD / SPERMIDINE / N-(2-AMINO-PROPYL)-1,4-DIAMINOBUTANE / PA(34)


Mass: 145.246 Da / Num. of mol.: 13 / Source method: obtained synthetically / Formula: C7H19N3
#59: Chemical ChemComp-FME / N-FORMYLMETHIONINE


Type: L-peptide linking / Mass: 177.221 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C6H11NO3S
#60: Chemical ChemComp-SPM / SPERMINE


Mass: 202.340 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H26N4
#61: Chemical
ChemComp-K / POTASSIUM ION


Mass: 39.098 Da / Num. of mol.: 10 / Source method: obtained synthetically / Formula: K
#62: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Zn
#63: Chemical ChemComp-A1B70 / (2R)-6-[(tert-butoxycarbonyl)amino]-2-(hydroxymethyl)hexanoic acid


Mass: 261.315 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C12H23NO5 / Feature type: SUBJECT OF INVESTIGATION
#64: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 3527 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestY
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: 70S ribosome particle / Type: RIBOSOME / Entity ID: #1-#10, #12-#55 / Source: NATURAL
Molecular weightExperimental value: NO
Source (natural)Organism: Escherichia coli (E. coli) / Strain: MRE600
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 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: OTHER
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1500 nm / Nominal defocus min: 500 nm
Image recordingElectron dose: 40 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

EM software
IDNameVersionCategory
1RELION5particle selection
9PHENIX1.20.1_4487:model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 765402
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 2.14 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 86644 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT
Atomic model buildingPDB-ID: 8EBB

8ebb


Accession code: 8EBB / Source name: PDB / Type: experimental model
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.006154017
ELECTRON MICROSCOPYf_angle_d1.003230401
ELECTRON MICROSCOPYf_dihedral_angle_d14.40765467
ELECTRON MICROSCOPYf_chiral_restr0.0528519
ELECTRON MICROSCOPYf_plane_restr0.00812231

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