ISDA

Deposition Date 2023-01-28

Release Date 2024-07-17

Last Version Date 2025-03-19

Entry Detail

PDB ID:

8FZI

Keywords:

RIBOSOME

Title:

Cryo-EM structure of an E. coli rotated ribosome bound with RF3-GDPCP and p/E-tRNAPhe (Composite state II-B)

Biological Source:

Source Organism:

Escherichia coli (Taxon ID: 562)
Escherichia coli K-12 (Taxon ID: 83333)
Escherichia phage T4 (Taxon ID: 2681598)

Host Organism:

Escherichia coli HB101

Method Details:

Experimental Method:

ELECTRON MICROSCOPY

Resolution:

3.10 Å

Aggregation State:

PARTICLE

Reconstruction Method:

SINGLE PARTICLE

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L29
Chain IDs:WA (auth: 1)
Chain Length:63
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7M6 Pfam ID:PF00831

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L30
Chain IDs:XA (auth: 2)
Chain Length:59
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0AG51 Pfam ID:PF00327

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L31
Gene (Uniprot):rpmE
Chain IDs:YA (auth: 3)
Chain Length:70
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7M9 Pfam ID:PF01197

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L32
Chain IDs:ZA (auth: 4)
Chain Length:57
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7N4 Pfam ID:PF01783

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L33
Chain IDs:AB (auth: 5)
Chain Length:55
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7N9 Pfam ID:PF00471

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L34
Chain IDs:BB (auth: 6)
Chain Length:46
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7P5 Pfam ID:PF00468

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L35
Gene (Uniprot):rpmI
Chain IDs:CB (auth: 7)
Chain Length:65
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7Q1 Pfam ID:PF01632

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L36
Chain IDs:DB (auth: 8)
Chain Length:38
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7Q6 Pfam ID:PF00444

Polymer Type:polyribonucleotide
Molecule:23S Ribosomal RNA
Chain IDs:Y (auth: A)
Chain Length:1542
Number of Molecules:1
Biological Source:Escherichia coli

Polymer Type:polyribonucleotide
Molecule:5S Ribosomal RNA
Chain IDs:Z (auth: B)
Chain Length:120
Number of Molecules:1
Biological Source:Escherichia coli

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L2
Gene (Uniprot):rplB
Chain IDs:AA (auth: C)
Chain Length:233
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P60422 Pfam ID:PF00181, PF03947

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L3
Chain IDs:BA (auth: D)
Chain Length:206
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P60438 Pfam ID:PF00297

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L4
Chain IDs:CA (auth: E)
Chain Length:201
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P60723 Pfam ID:PF00573

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L5
Chain IDs:DA (auth: F)
Chain Length:131
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P62399 Pfam ID:PF00281, PF00673

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L6
Chain IDs:EA (auth: G)
Chain Length:156
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0AG55 Pfam ID:PF00347

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L10
Gene (Uniprot):rplJ
Chain IDs:FA (auth: I)
Chain Length:130
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7J3 Pfam ID:PF00466

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L11
Gene (Uniprot):rplK
Chain IDs:GA (auth: J)
Chain Length:142
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7J7 Pfam ID:PF03946, PF00298

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L13
Chain IDs:HA (auth: L)
Chain Length:124
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0AA10 Pfam ID:PF00572

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L14
Chain IDs:IA (auth: M)
Chain Length:118
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0ADY3 Pfam ID:PF00238

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L15
Chain IDs:JA (auth: N)
Chain Length:101
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P02413 Pfam ID:PF00828

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L16
Chain IDs:KA (auth: O)
Chain Length:89
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0ADY7 Pfam ID:PF00252

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L17
Chain IDs:LA (auth: P)
Chain Length:127
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0AG44 Pfam ID:PF01196

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L18
Chain IDs:MA (auth: Q)
Chain Length:117
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0C018 Pfam ID:PF00861

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L19
Chain IDs:NA (auth: R)
Chain Length:115
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7K6 Pfam ID:PF01245

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L20
Chain IDs:OA (auth: S)
Chain Length:118
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7L3 Pfam ID:PF00453

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Ribosomal protein L21
Chain IDs:PA (auth: T)
Chain Length:103
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0AG48 Pfam ID:PF00829

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L22
Gene (Uniprot):rplV
Chain IDs:QA (auth: U)
Chain Length:110
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P61175 Pfam ID:PF00237

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L23
Chain IDs:RA (auth: V)
Chain Length:529
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0ADZ0 Pfam ID:PF00276

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L24
Chain IDs:SA (auth: W)
Chain Length:104
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P60624 Pfam ID:PF00467, PF17136

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L25
Chain IDs:TA (auth: X)
Chain Length:76
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P68919 Pfam ID:PF01386

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L27
Gene (Uniprot):rpmA
Chain IDs:UA (auth: Y)
Chain Length:85
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7L8 Pfam ID:PF01016

Protein Blast

Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L28
Chain IDs:VA (auth: Z)
Chain Length:78
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7M2 Pfam ID:PF00830

Polymer Type:polyribonucleotide
Molecule:16S Ribosomal RNA
Chain IDs:A (auth: a)
Chain Length:1542
Number of Molecules:1
Biological Source:Escherichia coli

Protein Blast

Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S2
Chain IDs:B (auth: b)
Chain Length:120
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7V0 Pfam ID:PF00318

Protein Blast

Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S3
Chain IDs:C (auth: c)
Chain Length:233
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7V3 Pfam ID:PF07650, PF00189

Protein Blast

Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S4
Gene (Uniprot):rpsD
Chain IDs:D (auth: d)
Chain Length:206
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7V8 Pfam ID:PF00163, PF01479

Protein Blast

Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S5
Gene (Uniprot):rpsE
Chain IDs:E (auth: e)
Chain Length:201
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7W1 Pfam ID:PF00333, PF03719

Protein Blast

Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S6
Chain IDs:F (auth: f)
Chain Length:131
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P02358 Pfam ID:PF01250

Protein Blast

Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S7
Gene (Uniprot):rpsG
Chain IDs:G (auth: g)
Chain Length:156
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P02359 Pfam ID:PF00177

Protein Blast

Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S8
Chain IDs:H (auth: h)
Chain Length:130
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7W7 Pfam ID:PF00410

Protein Blast

Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S9
Chain IDs:I (auth: i)
Chain Length:130
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7X3 Pfam ID:PF00380

Protein Blast

Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S10
Chain IDs:J (auth: j)
Chain Length:142
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7R5 Pfam ID:PF00338

Protein Blast

Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S11
Chain IDs:K (auth: k)
Chain Length:129
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7R9 Pfam ID:PF00411

Protein Blast

Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S12
Chain IDs:L (auth: l)
Chain Length:124
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7S3 Pfam ID:PF00164

Protein Blast

Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S13
Chain IDs:M (auth: m)
Chain Length:118
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7S9 Pfam ID:PF00416

Protein Blast

Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S14
Chain IDs:N (auth: n)
Chain Length:101
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0AG59 Pfam ID:PF00253

Protein Blast

Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S15
Chain IDs:O (auth: o)
Chain Length:89
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0ADZ4 Pfam ID:PF00312

Protein Blast

Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S16
Chain IDs:P (auth: p)
Chain Length:127
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7T3 Pfam ID:PF00886

Protein Blast

Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S17
Chain IDs:Q (auth: q)
Chain Length:117
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0AG63 Pfam ID:PF00366

Protein Blast

Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S18
Chain IDs:R (auth: r)
Chain Length:115
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7T7 Pfam ID:PF01084

Protein Blast

Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S19
Chain IDs:S (auth: s)
Chain Length:118
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7U3 Pfam ID:PF00203

Protein Blast

Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S20
Chain IDs:T (auth: t)
Chain Length:103
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0A7U7 Pfam ID:PF01649

Protein Blast

Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S21
Chain IDs:U (auth: u)
Chain Length:110
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P68679 Pfam ID:PF01165

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Peptide chain release factor RF3
Gene (Uniprot):prfC
Chain IDs:X (auth: v)
Chain Length:529
Number of Molecules:1
Biological Source:Escherichia coli K-12

UniProt ID:P0A7I4 Pfam ID:PF00009, PF03144, PF16658

Polymer Type:polyribonucleotide
Molecule:p/E phenylalanyl-tRNA
Chain IDs:V (auth: x)
Chain Length:76
Number of Molecules:1
Biological Source:Escherichia coli

Polymer Type:polyribonucleotide
Molecule:F-UAA mRNA
Chain IDs:W (auth: z)
Chain Length:78
Number of Molecules:1
Biological Source:Escherichia phage T4

Primary Citation

The ribosome termination complex remodels release factor RF3 and ejects GDP.

Li, L, Rybak, M.Y, Lin, J, Gagnon, M.G.Show

Nat.Struct.Mol.Biol. 31 1909 1920 (2024)

PMID: 39030416 DOI: 10.1038/s41594-024-01360-0

Abstact

Translation termination involves release factors RF1, RF2 and the GTPase RF3 that recycles RF1 and RF2 from the ribosome. RF3 dissociates from the ribosome in the GDP-bound form and must then exchange GDP for GTP. The 70S ribosome termination complex (70S-TC) accelerates GDP exchange in RF3, suggesting that the 70S-TC can function as the guanine nucleotide exchange factor for RF3. Here, we use cryogenic-electron microscopy to elucidate the mechanism of GDP dissociation from RF3 catalyzed by the Escherichia coli 70S-TC. The non-rotated ribosome bound to RF1 remodels RF3 and induces a peptide flip in the phosphate-binding loop, efficiently ejecting GDP. Binding of GTP allows RF3 to dock at the GTPase center, promoting the dissociation of RF1 from the ribosome. The structures recapitulate the functional cycle of RF3 on the ribosome and uncover the mechanism by which the 70S-TC allosterically dismantles the phosphate-binding groove in RF3, a previously overlooked function of the ribosome.

Legend

Protein

Chemical

Disease

Primary Citation of related structures