2qgf

Structure of regulatory chain mutant H20A of asparate transcarbamoylase from E. coli

Method: X-RAY DIFFRACTION Dmax: 112.8 Å Quality: GOOD

1. Protein Identity and Related Structures Protein Identity & Related Structures

Aspartate carbamoyltransferase catalytic chain

Escherichia coli

UniProt P0A786

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 × 12 PDB declaration: dodecameric(12) Consistent with protein copy count Chain A; UniProt 2–311 Chain C; UniProt 2–311 Not recorded Aspartate carbamoyltransferase regulatory chain × 6 (P0A7F3) ZN ZINC ION × 6 X-RAY DIFFRACTION X-ray crystallization conditions:MICRODIALYSIS;pH 5.7;298 K;0.1M citric acid, pH 5.7, MICRODIALYSIS, temperature 298.0K Resolution 2.20 Å R-free 0.223

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.

59 other PDB entries and 61 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PYRB_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–310; UniProt 2–311 Author chain C; PDBConstruct 1–310; UniProt 2–311

Aspartate carbamoyltransferase regulatory chain

Escherichia coli

UniProt P0A7F3

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 × 12 PDB declaration: dodecameric(12) Consistent with protein copy count Chain B; UniProt 1–153 Chain D; UniProt 1–153 Mutation:H20A Aspartate carbamoyltransferase catalytic chain × 6 (P0A786) ZN ZINC ION × 6 X-RAY DIFFRACTION X-ray crystallization conditions:MICRODIALYSIS;pH 5.7;298 K;0.1M citric acid, pH 5.7, MICRODIALYSIS, temperature 298.0K Resolution 2.20 Å R-free 0.223

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.

54 other PDB entries and 55 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PYRI_ECOLI
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–153; UniProt 1–153 Author chain D; PDBConstruct 1–153; UniProt 1–153

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 2qgf

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2qgf
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2qgf
Deposition date deposition_date2007-06-28
Structure title titleStructure of regulatory chain mutant H20A of asparate transcarbamoylase from E. coli
Keywords keywordsallosteric enzyme regulatory chain mutation, heterotropic regulation, TRANSFERASE-Transferase regulator COMPLEX; TRANSFERASE/Transferase regulator
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier37.61
Radius of gyration Rg (electron density) rg_electron37.07
Forward intensity I(0) i0162507000.00
Molecular weight molecular_weight102820.0 kDa
Excluded volume excluded_volume128820 ų
Envelope volume envelope_volume174600 ų
Hydration-shell volume shell_volume39852 ų
Envelope diameter envelope_diameter108.8
Shell Rg shell_rg42.87
Envelope Rg envelope_rg35.84
Shape Rg shape_rg37.09
Total Rg total_rg37.39
Total atoms total_atoms7224
Residues n_residues926
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 dmax112.8
Rg (real space) rg_real37.49
Rg uncertainty (real space) rg_real_error0.92
I(0) (real space) i0_real1.6250e+08
I(0) uncertainty (real space) i0_real_error2.4670e+06
Rg (reciprocal space) rg_reciprocal37.57
I(0) (reciprocal space) i0_reciprocal162500000.0000
Solution quality estimate total_estimate0.8969
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary61.8
Skewness Skewness skewness0.043
Kurtosis Kurtosis kurtosis-0.905
Angular range angular_range— – 0.2100 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha20520000.0000
Real-space data points n_real_points43
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.943; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.982; Smooth: 0.846

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 16 domains

SCOP 2.08 (8 domains)

Domain ID domain_idd2qgfa1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.78 — ATC-like
Superfamily Superfamily superfamilyc.78.1 — Aspartate/ornithine carbamoyltransferase
Family Family familyc.78.1.1 — Aspartate/ornithine carbamoyltransferase
Domain ID domain_idd2qgfa2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.78 — ATC-like
Superfamily Superfamily superfamilyc.78.1 — Aspartate/ornithine carbamoyltransferase
Family Family familyc.78.1.1 — Aspartate/ornithine carbamoyltransferase
Domain ID domain_idd2qgfb1
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.58 — Ferredoxin-like
Superfamily Superfamily superfamilyd.58.2 — Aspartate carbamoyltransferase, Regulatory-chain, N-terminal domain
Family Family familyd.58.2.1 — Aspartate carbamoyltransferase, Regulatory-chain, N-terminal domain
Domain ID domain_idd2qgfb2
Class classg — Small proteins
Fold Fold foldg.41 — Rubredoxin-like
Superfamily Superfamily superfamilyg.41.7 — Aspartate carbamoyltransferase, Regulatory-chain, C-terminal domain
Family Family familyg.41.7.1 — Aspartate carbamoyltransferase, Regulatory-chain, C-terminal domain
Domain ID domain_idd2qgfc1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.78 — ATC-like
Superfamily Superfamily superfamilyc.78.1 — Aspartate/ornithine carbamoyltransferase
Family Family familyc.78.1.1 — Aspartate/ornithine carbamoyltransferase
Domain ID domain_idd2qgfc2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.78 — ATC-like
Superfamily Superfamily superfamilyc.78.1 — Aspartate/ornithine carbamoyltransferase
Family Family familyc.78.1.1 — Aspartate/ornithine carbamoyltransferase
Domain ID domain_idd2qgfd1
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.58 — Ferredoxin-like
Superfamily Superfamily superfamilyd.58.2 — Aspartate carbamoyltransferase, Regulatory-chain, N-terminal domain
Family Family familyd.58.2.1 — Aspartate carbamoyltransferase, Regulatory-chain, N-terminal domain
Domain ID domain_idd2qgfd2
Class classg — Small proteins
Fold Fold foldg.41 — Rubredoxin-like
Superfamily Superfamily superfamilyg.41.7 — Aspartate carbamoyltransferase, Regulatory-chain, C-terminal domain
Family Family familyg.41.7.1 — Aspartate carbamoyltransferase, Regulatory-chain, C-terminal domain

CATH v4.4 (8 domains)

Domain ID domain_id2qgfA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1370 — Aspartate/ornithine carbamoyltransferase
Domain ID domain_id2qgfA02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1370 — Aspartate/ornithine carbamoyltransferase
Domain ID domain_id2qgfB01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily140 — Aspartate carbamoyltransferase regulatory subunit, N-terminal domain
Domain ID domain_id2qgfB02
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology30 — SH3 type barrels.
Homologous superfamily homologous superfamily20 — Aspartate carbamoyltransferase regulatory subunit, C-terminal domain
Domain ID domain_id2qgfC01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1370 — Aspartate/ornithine carbamoyltransferase
Domain ID domain_id2qgfC02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1370 — Aspartate/ornithine carbamoyltransferase
Domain ID domain_id2qgfD01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily140 — Aspartate carbamoyltransferase regulatory subunit, N-terminal domain
Domain ID domain_id2qgfD02
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology30 — SH3 type barrels.
Homologous superfamily homologous superfamily20 — Aspartate carbamoyltransferase regulatory subunit, C-terminal domain

8. Citations (1)

9. Files and Curves (10)