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1p6v

Crystal structure of the tRNA domain of transfer-messenger RNA in complex with SmpB

Method: X-RAY DIFFRACTION
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1. Protein Identity and Related Structures Protein Identity & Related Structures

SsrA-binding protein

Aquifex aeolicus

UniProt O66640

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Monomer Protein 1 RNA 1 45-MER × 1 Consistent with all polymers
2 Protein–RNA Monomer Protein 1 RNA 1 45-MER × 1 Consistent with all polymers

Other States of the Same Protein in the Database

Monomer
1k8h

1 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1p6v 1p6v

2 assemblies

View Construct and Data Evidence
UniProt name SSRP_AQUAE
Isoform —
PDB entities 2
Chains and sequence ranges Author chain A； PDBConstruct 1–156； UniProt 2–157 Author chain C； PDBConstruct 1–156； UniProt 2–157

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_id1p6v
Deposition date deposition_date2003-04-30
Structure title titleCrystal structure of the tRNA domain of transfer-messenger RNA in complex with SmpB
Keywords keywordsSmpB, tmRNA, trans-translation, protein-RNA complex, RNA BINDING PROTEIN-RNA COMPLEX; RNA BINDING PROTEIN/RNA
Experimental Method methodX-RAY DIFFRACTION
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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.

1p6v__assembly_1__model_1

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

Download this curve (.dat)

1p6v__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.

1p6v__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）20.79 Å
Rg (electron density)20.12 Å
Total Rg20.92 Å
Atom count1982
Residues170
Excluded volume32326 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1p6v__assembly_1__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 1p6v__assembly_2__model_1 dimeric （2） 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 (2)

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1p6va_
Class classb — All beta proteins
Fold Fold foldb.111 — Small protein B (SmpB)
Superfamily Superfamily superfamilyb.111.1 — Small protein B (SmpB)
Family Family familyb.111.1.1 — Small protein B (SmpB)
Domain ID domain_idd1p6vc_
Class classb — All beta proteins
Fold Fold foldb.111 — Small protein B (SmpB)
Superfamily Superfamily superfamilyb.111.1 — Small protein B (SmpB)
Family Family familyb.111.1.1 — Small protein B (SmpB)

CATH v4.4 (2 domains)

Domain ID domain_id1p6vA00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology280 — Small Protein B; Chain: A;
Homologous superfamily homologous superfamily10 — Small protein B
Domain ID domain_id1p6vC00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology280 — Small Protein B; Chain: A;
Homologous superfamily homologous superfamily10 — Small protein B
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7. Citations (1)