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1zn1

Coordinates of RRF fitted into Cryo-EM map of the 70S post-termination complex

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Ribosome recycling factor

OrganismNot specified

UniProt P0A805

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 2 RNA 2 ribosomal 23S RNA × 1 ribosomal 16S RNA × 1 30S ribosomal protein S12 × 1 （P0A7S3） Consistent with all polymers

Other States of the Same Protein in the Database

Monomer
1ek8 1ise

2 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1y69 1zn0 1zn1 2rdo 4v9c 4v9d 4woi

7 assemblies

View Construct and Data Evidence
UniProt name RRF_ECOLI
Isoform —
PDB entities 3
Chains and sequence ranges Author chain A； PDBConstruct 1–185； UniProt 1–185

30S ribosomal protein S12

OrganismNot specified

UniProt P0A7S3

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 2 RNA 2 ribosomal 23S RNA × 1 ribosomal 16S RNA × 1 Ribosome recycling factor × 1 （P0A805） Consistent with all polymers

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
10fz 11dg 11fv 11gg 1mj1 1zn1 28uh 28ui 28uj 28uk 28ul 28um

475 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name RS12_ECOLI
Isoform —
PDB entities 4
Chains and sequence ranges Author chain L； PDBConstruct 1–97； UniProt 27–123

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id1zn1
Deposition date deposition_date2005-05-11
Structure title titleCoordinates of RRF fitted into Cryo-EM map of the 70S post-termination complex
Keywords keywordsribosome recycling factor, elongation factor G, 70S, post-termination complex, BIOSYNTHETIC-structural protein-RNA COMPLEX; BIOSYNTHETIC/structural protein/RNA
Experimental Method methodELECTRON MICROSCOPY
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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

1zn1__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1zn1__assembly_1__model_1 | I(q)

10-2 10-1 105 106 107 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

1zn1__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）29.26 Å
Rg (electron density)28.84 Å
Total Rg29.01 Å
Atom count99
Residues99
Excluded volume39014 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1zn1__assembly_1__model_1 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (4)

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6. Fold Classification (SCOP + CATH) 1 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1zn1a1
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.67 — RRF/tRNA synthetase additional domain-like
Superfamily Superfamily superfamilyd.67.3 — Ribosome recycling factor, RRF
Family Family familyd.67.3.1 — Ribosome recycling factor, RRF
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7. Citations (4)