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1tkv

Solution Structure of T4 AsiA Dimer

Method: SOLUTION NMR
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1. Protein Identity and Related Structures Protein Identity & Related Structures

10 kDa anti-sigma factor

Enterobacteria phage T4

UniProt P32267

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 2 No other associated polymer Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1tl6

1 assemblies

Homodimer
1jr5 1tkv

2 assemblies

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1tlh 6k4y

2 assemblies

View Construct and Data Evidence
UniProt name ASIA_BPT4
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–90； UniProt 1–90 Author chain B； PDBConstruct 1–90； UniProt 1–90

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_id1tkv
Deposition date deposition_date2004-06-09
Structure title titleSolution Structure of T4 AsiA Dimer
Keywords keywordsanti-sigma, homodimer, TRANSCRIPTION; TRANSCRIPTION
Experimental Method methodSOLUTION NMR
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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.

1tkv__assembly_1__model_14

Assembly 1 · Model 14 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1tkv__assembly_1__model_14 | I(q)

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

1tkv__assembly_1__model_14 | 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）17.55 Å
Rg (electron density)15.90 Å
Total Rg17.12 Å
Atom count2948
Residues178
Excluded volume26209 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1tkv__assembly_1__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 2 1tkv__assembly_1__model_2 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 3 1tkv__assembly_1__model_3 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 4 1tkv__assembly_1__model_4 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 5 1tkv__assembly_1__model_5 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 6 1tkv__assembly_1__model_6 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 7 1tkv__assembly_1__model_7 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 8 1tkv__assembly_1__model_8 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 9 1tkv__assembly_1__model_9 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 10 1tkv__assembly_1__model_10 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 11 1tkv__assembly_1__model_11 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 12 1tkv__assembly_1__model_12 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 13 1tkv__assembly_1__model_13 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 14 1tkv__assembly_1__model_14 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 15 1tkv__assembly_1__model_15 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 16 1tkv__assembly_1__model_16 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 17 1tkv__assembly_1__model_17 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 18 1tkv__assembly_1__model_18 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 19 1tkv__assembly_1__model_19 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 20 1tkv__assembly_1__model_20 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 21 1tkv__assembly_1__model_21 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 22 1tkv__assembly_1__model_22 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 23 1tkv__assembly_1__model_23 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 (1)

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1tkva_
Class classa — All alpha proteins
Fold Fold folda.150 — Anti-sigma factor AsiA
Superfamily Superfamily superfamilya.150.1 — Anti-sigma factor AsiA
Family Family familya.150.1.1 — Anti-sigma factor AsiA
Domain ID domain_idd1tkvb_
Class classa — All alpha proteins
Fold Fold folda.150 — Anti-sigma factor AsiA
Superfamily Superfamily superfamilya.150.1 — Anti-sigma factor AsiA
Family Family familya.150.1.1 — Anti-sigma factor AsiA

CATH v4.4 (2 domains)

Domain ID domain_id1tkvA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1810 — Anti-sigma factor AsiA
Homologous superfamily homologous superfamily10 — Anti-Sigma Factor A
Domain ID domain_id1tkvB00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1810 — Anti-sigma factor AsiA
Homologous superfamily homologous superfamily10 — Anti-Sigma Factor A
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7. Citations (1)