2a0f

Structure of D236A mutant E. coli Aspartate Transcarbamoylase in presence of Phosphonoacetamide at 2.90 A resolution

Method: X-RAY DIFFRACTION Dmax: 118.9 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 1–310 Chain C; UniProt 1–310 Mutation:D236A Aspartate carbamoyltransferase regulatory chain × 6 (P0A7F3) PCT PHOSPHONOACETAMIDE × 3 ZN ZINC ION × 6 X-RAY DIFFRACTION X-ray crystallization conditions:MICRODIALYSIS;pH 5.7;298 K;maleic acid, sodium azide, phosphonoacetamide, pH 5.7, MICRODIALYSIS, temperature 298K Resolution 2.90 Å R-free 0.279

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 1–310 Author chain C; PDBConstruct 1–310; UniProt 1–310

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 1–152 Chain D; UniProt 1–152 Not recorded Aspartate carbamoyltransferase catalytic chain × 6 (P0A786) PCT PHOSPHONOACETAMIDE × 3 ZN ZINC ION × 6 X-RAY DIFFRACTION X-ray crystallization conditions:MICRODIALYSIS;pH 5.7;298 K;maleic acid, sodium azide, phosphonoacetamide, pH 5.7, MICRODIALYSIS, temperature 298K Resolution 2.90 Å R-free 0.279

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 2–153; UniProt 1–152 Author chain D; PDBConstruct 2–153; UniProt 1–152

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 2a0f

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2a0f
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2a0f
Deposition date deposition_date2005-06-16
Structure title titleStructure of D236A mutant E. coli Aspartate Transcarbamoylase in presence of Phosphonoacetamide at 2.90 A resolution
Keywords keywords;homotropic cooperativity, catalytic cycle, allosteric regulation, Alternate conformations, 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_guinier38.34
Radius of gyration Rg (electron density) rg_electron37.97
Forward intensity I(0) i0155727000.00
Molecular weight molecular_weight101180.0 kDa
Excluded volume excluded_volume126780 ų
Envelope volume envelope_volume171640 ų
Hydration-shell volume shell_volume37673 ų
Envelope diameter envelope_diameter116.5
Shell Rg shell_rg44.32
Envelope Rg envelope_rg36.71
Shape Rg shape_rg37.99
Total Rg total_rg38.30
Total atoms total_atoms7110
Residues n_residues912
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 dmax118.9
Rg (real space) rg_real38.29
Rg uncertainty (real space) rg_real_error1.02
I(0) (real space) i0_real1.5570e+08
I(0) uncertainty (real space) i0_real_error2.7740e+06
Rg (reciprocal space) rg_reciprocal38.33
I(0) (reciprocal space) i0_reciprocal155700000.0000
Solution quality estimate total_estimate0.8134
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary63.8
Skewness Skewness skewness0.080
Kurtosis Kurtosis kurtosis-0.913
Angular range angular_range— – 0.2050 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha22550000.0000
Real-space data points n_real_points42
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.875; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.944; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 16 domains

SCOP 2.08 (8 domains)

Domain ID domain_idd2a0fa1
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_idd2a0fa2
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_idd2a0fb1
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_idd2a0fb2
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_idd2a0fc1
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_idd2a0fc2
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_idd2a0fd1
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_idd2a0fd2
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_id2a0fA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1370 — Aspartate/ornithine carbamoyltransferase
Domain ID domain_id2a0fA02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1370 — Aspartate/ornithine carbamoyltransferase
Domain ID domain_id2a0fB01
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_id2a0fB02
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_id2a0fC01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1370 — Aspartate/ornithine carbamoyltransferase
Domain ID domain_id2a0fC02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1370 — Aspartate/ornithine carbamoyltransferase
Domain ID domain_id2a0fD01
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_id2a0fD02
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)