6OFX image
Deposition Date 2019-04-01
Release Date 2019-09-25
Last Version Date 2024-03-20
Entry Detail
PDB ID:
6OFX
Keywords:
Title:
Non-rotated ribosome (Structure I)
Biological Source:
Source Organism:
Method Details:
Experimental Method:
Resolution:
3.30 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
Macromolecular Entities
Polymer Type:polyribonucleotide
Molecule:23S ribosomal RNA
Chain IDs:YA (auth: 1)
Chain Length:2903
Number of Molecules:1
Biological Source:Escherichia coli K-12
Polymer Type:polyribonucleotide
Molecule:5S ribosomal RNA
Chain IDs:ZA (auth: 2)
Chain Length:120
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polyribonucleotide
Molecule:16S ribosomal RNA
Chain IDs:XA (auth: 3)
Chain Length:1539
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polyribonucleotide
Molecule:mRNA
Chain IDs:BB (auth: 4)
Chain Length:27
Number of Molecules:1
Biological Source:synthetic construct
Polymer Type:polyribonucleotide
Molecule:tRNAfMet
Chain IDs:AB (auth: 5)
Chain Length:77
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L32
Gene (Uniprot):rpmF
Chain IDs:X (auth: B)
Chain Length:271
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L33
Gene (Uniprot):rpmG
Chain IDs:Y (auth: C)
Chain Length:50
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L34
Gene (Uniprot):rpmH
Chain IDs:Z (auth: D)
Chain Length:46
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L35
Gene (Uniprot):rpmI
Chain IDs:AA (auth: E)
Chain Length:64
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L36
Gene (Uniprot):rpmJ
Chain IDs:BA (auth: F)
Chain Length:38
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S2
Gene (Uniprot):rpsB
Chain IDs:CA (auth: G)
Chain Length:149
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S3
Gene (Uniprot):rpsC
Chain IDs:DA (auth: H)
Chain Length:206
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S4
Gene (Uniprot):rpsD
Chain IDs:EA (auth: I)
Chain Length:205
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S5
Gene (Uniprot):rpsE
Chain IDs:FA (auth: J)
Chain Length:157
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S6
Gene (Uniprot):rpsF
Chain IDs:GA (auth: K)
Chain Length:101
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S7
Gene (Uniprot):rpsG
Chain IDs:HA (auth: L)
Chain Length:143
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S8
Gene (Uniprot):rpsH
Chain IDs:IA (auth: M)
Chain Length:136
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S9
Gene (Uniprot):rpsI
Chain IDs:JA (auth: N)
Chain Length:127
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S10
Gene (Uniprot):rpsJ
Chain IDs:KA (auth: O)
Chain Length:116
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S11
Gene (Uniprot):rpsK
Chain IDs:LA (auth: P)
Chain Length:116
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S12
Gene (Uniprot):rpsL
Chain IDs:MA (auth: Q)
Chain Length:117
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S13
Gene (Uniprot):rpsM
Chain IDs:NA (auth: R)
Chain Length:103
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S14
Gene (Uniprot):rpsN
Chain IDs:OA (auth: S)
Chain Length:110
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S15
Gene (Uniprot):rpsO
Chain IDs:PA (auth: T)
Chain Length:93
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S16
Gene (Uniprot):rpsP
Chain IDs:QA (auth: U)
Chain Length:82
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S17
Gene (Uniprot):rpsQ
Chain IDs:RA (auth: V)
Chain Length:94
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S18
Gene (Uniprot):rpsR
Chain IDs:SA (auth: W)
Chain Length:65
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S19
Gene (Uniprot):rpsS
Chain IDs:TA (auth: X)
Chain Length:79
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S20
Gene (Uniprot):rpsT
Chain IDs:UA (auth: Y)
Chain Length:63
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S21
Gene (Uniprot):rpsU
Chain IDs:VA (auth: Z)
Chain Length:65
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L1
Gene (Uniprot):rplA
Chain IDs:WA (auth: a)
Chain Length:223
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L2
Gene (Uniprot):rplB
Chain IDs:A (auth: b)
Chain Length:271
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L3
Gene (Uniprot):rplC
Chain IDs:B (auth: c)
Chain Length:50
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L4
Gene (Uniprot):rplD
Chain IDs:C (auth: d)
Chain Length:46
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L5
Gene (Uniprot):rplE
Chain IDs:D (auth: e)
Chain Length:64
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L6
Gene (Uniprot):rplF
Chain IDs:E (auth: f)
Chain Length:38
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L9
Gene (Uniprot):rplI
Chain IDs:F (auth: g)
Chain Length:149
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L13
Gene (Uniprot):rplM
Chain IDs:G (auth: j)
Chain Length:157
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L14
Gene (Uniprot):rplN
Chain IDs:H (auth: k)
Chain Length:101
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L15
Gene (Uniprot):rplO
Chain IDs:I (auth: l)
Chain Length:143
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L16
Gene (Uniprot):rplP
Chain IDs:J (auth: m)
Chain Length:136
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L17
Gene (Uniprot):rplQ
Chain IDs:K (auth: n)
Chain Length:127
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L18
Gene (Uniprot):rplR
Chain IDs:L (auth: o)
Chain Length:116
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L19
Gene (Uniprot):rplS
Chain IDs:M (auth: p)
Chain Length:116
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L20
Gene (Uniprot):rplT
Chain IDs:N (auth: q)
Chain Length:117
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L21
Gene (Uniprot):rplU
Chain IDs:O (auth: r)
Chain Length:103
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L22
Gene (Uniprot):rplV
Chain IDs:P (auth: s)
Chain Length:110
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L23
Gene (Uniprot):rplW
Chain IDs:Q (auth: t)
Chain Length:93
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L24
Gene (Uniprot):rplX
Chain IDs:R (auth: u)
Chain Length:82
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L25
Gene (Uniprot):rplY
Chain IDs:S (auth: v)
Chain Length:94
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L27
Gene (Uniprot):rpmA
Chain IDs:T (auth: w)
Chain Length:65
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L28
Gene (Uniprot):rpmB
Chain IDs:U (auth: x)
Chain Length:79
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L29
Gene (Uniprot):rpmC
Chain IDs:V (auth: y)
Chain Length:63
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L30
Gene (Uniprot):rpmD
Chain IDs:W (auth: z)
Chain Length:65
Number of Molecules:1
Biological Source:Escherichia coli (strain K12)
Ligand Molecules
Primary Citation
Extensive ribosome and RF2 rearrangements during translation termination.
Elife 8 ? ? (2019)
PMID: 31513010 DOI: 10.7554/eLife.46850

Abstact

Protein synthesis ends when a ribosome reaches an mRNA stop codon. Release factors (RFs) decode the stop codon, hydrolyze peptidyl-tRNA to release the nascent protein, and then dissociate to allow ribosome recycling. To visualize termination by RF2, we resolved a cryo-EM ensemble of E. coli 70S•RF2 structures at up to 3.3 Å in a single sample. Five structures suggest a highly dynamic termination pathway. Upon peptidyl-tRNA hydrolysis, the CCA end of deacyl-tRNA departs from the peptidyl transferase center. The catalytic GGQ loop of RF2 is rearranged into a long β-hairpin that plugs the peptide tunnel, biasing a nascent protein toward the ribosome exit. Ribosomal intersubunit rotation destabilizes the catalytic RF2 domain on the 50S subunit and disassembles the central intersubunit bridge B2a, resulting in RF2 departure. Our structures visualize how local rearrangements and spontaneous inter-subunit rotation poise the newly-made protein and RF2 to dissociate in preparation for ribosome recycling.

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Chemical

Disease

Primary Citation of related structures