1tlh

T4 AsiA bound to sigma70 region 4

Method: SOLUTION NMR Dmax: 56.7 Å Quality: GOOD

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 Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–90 Not recorded RNA polymerase sigma factor rpoD × 1 (P00579) SOLUTION NMR NMR measurement conditions:pH 7;312 K;Ionic strength (raw mmCIF value) 150 mM NaCl;Pressure 1 NMR sample composition:0.7 mM protein, phosphate buffered saline, 50 mM sodium azide, 1 mM benzamidine hydrochloride | 97% H2O, 3% D2O Resolution not provided

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

4 other PDB entries and 4 assemblies. Open the comparison page and filter oligomeric states

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

RNA polymerase sigma factor rpoD

Escherichia coli

UniProt P00579

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 533–613 Not recorded 10 kDa anti-sigma factor × 1 (P32267) SOLUTION NMR NMR measurement conditions:pH 7;312 K;Ionic strength (raw mmCIF value) 150 mM NaCl;Pressure 1 NMR sample composition:0.7 mM protein, phosphate buffered saline, 50 mM sodium azide, 1 mM benzamidine hydrochloride | 97% H2O, 3% D2O Resolution not provided

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

91 other PDB entries and 132 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RPOD_ECOLI
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–81; UniProt 533–613

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.

SAXS scattering curve SAXS Profile

SAXS profile for 1tlh

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1tlh
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1tlh
Deposition date deposition_date2004-06-09
Structure title titleT4 AsiA bound to sigma70 region 4
Keywords keywordsanti-sigma, sigma70, rna polymerase, TRANSCRIPTION; TRANSCRIPTION
Experimental Method methodSOLUTION NMR

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier17.07
Radius of gyration Rg (electron density) rg_electron16.52
Forward intensity I(0) i01875420000.00
Molecular weight molecular_weight367100.0 kDa
Excluded volume excluded_volume460030 ų
Envelope volume envelope_volume52159 ų
Hydration-shell volume shell_volume21932 ų
Envelope diameter envelope_diameter65.4
Shell Rg shell_rg26.71
Envelope Rg envelope_rg20.11
Shape Rg shape_rg16.51
Total Rg total_rg16.74
Total atoms total_atoms52100
Residues n_residues3140
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax56.7
Rg (real space) rg_real16.98
Rg uncertainty (real space) rg_real_error0.34
I(0) (real space) i0_real1.8750e+09
I(0) uncertainty (real space) i0_real_error1.9110e+07
Rg (reciprocal space) rg_reciprocal16.99
I(0) (reciprocal space) i0_reciprocal1875000000.0000
Solution quality estimate total_estimate0.7858
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary22.4
Skewness Skewness skewness0.190
Kurtosis Kurtosis kurtosis-0.293
Angular range angular_range— – 0.4650 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha978800.0000
Real-space data points n_real_points77
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.738; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1tlha_
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_idd1tlhb_
Class classa — All alpha proteins
Fold Fold folda.4 — DNA/RNA-binding 3-helical bundle
Superfamily Superfamily superfamilya.4.13 — Sigma3 and sigma4 domains of RNA polymerase sigma factors
Family Family familya.4.13.2 — Sigma4 domain

CATH v4.4 (2 domains)

Domain ID domain_id1tlhA00
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_id1tlhB01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain

8. Citations (1)

9. Files and Curves (10)