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1ocy

Structure of the receptor-binding domain of the bacteriophage T4 short tail fibre

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

BACTERIOPHAGE T4 SHORT TAIL FIBRE

BACTERIOPHAGE T4

UniProt Q38160

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 3 CITRIC ACID × 3 SULFATE ION × 6 ZINC ION × 3 water × 3 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers
1ocy

1 assemblies

Heteromeric or nucleic-acid complex

None

View Construct and Data Evidence
UniProt name VG12_BPT4
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–198； UniProt 330–527

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_id1ocy
Deposition date deposition_date2003-02-11
Structure title titleStructure of the receptor-binding domain of the bacteriophage T4 short tail fibre
Keywords keywords;STRUCTURAL PROTEIN, FIBROUS PROTEIN, LIPO-POLYSACCHARIDE BINDING, BACTERIOPHAGE STRUCTURAL PROTEIN, BASEPLATE PROTEIN, GENE PRODUCT 12 ;; STRUCTURAL PROTEIN
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.

1ocy__assembly_1__model_1

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

Download this curve (.dat)

1ocy__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.

1ocy__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）28.01 Å
Rg (electron density)27.42 Å
Total Rg28.04 Å
Atom count4681
Residues594
Excluded volume80906 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1ocy__assembly_1__model_1 trimeric （3） 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 (5)

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6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1ocya_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.231 — Receptor-binding domain of short tail fibre protein gp12
Superfamily Superfamily superfamilyd.231.1 — Receptor-binding domain of short tail fibre protein gp12
Family Family familyd.231.1.1 — Receptor-binding domain of short tail fibre protein gp12

CATH v4.4 (2 domains)

Domain ID domain_id1ocyA01
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology1340 — heat- and protease-stable fragment of the bacteriophage t4 short fibre, domain 3
Homologous superfamily homologous superfamily10 — Phage tail collar domain
Domain ID domain_id1ocyA02
Class class4 — Few Secondary Structures
Architecture architecture10 — Irregular
Topology topology1070 — receptor-binding domain of the bacteriophage t4 short tail fibre, domain 2
Homologous superfamily homologous superfamily10 — receptor-binding domain of the bacteriophage t4 short tail fibre, domain 2
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7. Citations (5)