3mpu

Crystal structure of the C47A/A241C disulfide-linked E. coli Aspartate Transcarbamoylase holoenzyme

Method: X-RAY DIFFRACTION Dmax: 151.5 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 Mutation:C47A, A241C Aspartate carbamoyltransferase regulatory chain × 6 (P0A7F3) PO4 PHOSPHATE ION × 12 ZN ZINC ION × 6 X-RAY DIFFRACTION X-ray crystallization conditions:MICRODIALYSIS;pH 5.9;293 K;Protein at 10 mg/ml was dialyzed against solution containing 100 mM KH2PO4, 3mM NaN3, pH 5.9, MICRODIALYSIS, temperature 293K Resolution 2.85 Å R-free 0.240
2 Protein heterocomplex Heteromer Protein × 12 PDB declaration: dodecameric(12) Consistent with protein copy count Chain E; UniProt 2–311 Mutation:C47A, A241C Aspartate carbamoyltransferase regulatory chain × 6 (P0A7F3) PO4 PHOSPHATE ION × 12 ZN ZINC ION × 6 X-RAY DIFFRACTION X-ray crystallization conditions:MICRODIALYSIS;pH 5.9;293 K;Protein at 10 mg/ml was dialyzed against solution containing 100 mM KH2PO4, 3mM NaN3, pH 5.9, MICRODIALYSIS, temperature 293K Resolution 2.85 Å R-free 0.240

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 60 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 Author chain E; 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 Not recorded Aspartate carbamoyltransferase catalytic chain × 6 (P0A786) PO4 PHOSPHATE ION × 12 ZN ZINC ION × 6 X-RAY DIFFRACTION X-ray crystallization conditions:MICRODIALYSIS;pH 5.9;293 K;Protein at 10 mg/ml was dialyzed against solution containing 100 mM KH2PO4, 3mM NaN3, pH 5.9, MICRODIALYSIS, temperature 293K Resolution 2.85 Å R-free 0.240
2 Protein heterocomplex Heteromer Protein × 12 PDB declaration: dodecameric(12) Consistent with protein copy count Chain F; UniProt 1–153 Not recorded Aspartate carbamoyltransferase catalytic chain × 6 (P0A786) PO4 PHOSPHATE ION × 12 ZN ZINC ION × 6 X-RAY DIFFRACTION X-ray crystallization conditions:MICRODIALYSIS;pH 5.9;293 K;Protein at 10 mg/ml was dialyzed against solution containing 100 mM KH2PO4, 3mM NaN3, pH 5.9, MICRODIALYSIS, temperature 293K Resolution 2.85 Å R-free 0.240

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 54 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 Author chain F; 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 3mpu

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3mpu
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3mpu
Deposition date deposition_date2010-04-27
Structure title titleCrystal structure of the C47A/A241C disulfide-linked E. coli Aspartate Transcarbamoylase holoenzyme
Keywords keywordsaspartate trancarbamoylase, disulfide bond, phosphate, catalysis, product release, ordered-sequential mechanism, TRANSFERASE; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier45.61
Radius of gyration Rg (electron density) rg_electron45.75
Forward intensity I(0) i0343314000.00
Molecular weight molecular_weight151360.0 kDa
Excluded volume excluded_volume189290 ų
Envelope volume envelope_volume273220 ų
Hydration-shell volume shell_volume52164 ų
Envelope diameter envelope_diameter159.8
Shell Rg shell_rg47.68
Envelope Rg envelope_rg45.01
Shape Rg shape_rg45.76
Total Rg total_rg45.83
Total atoms total_atoms10629
Residues n_residues1359
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 dmax151.5
Rg (real space) rg_real45.70
Rg uncertainty (real space) rg_real_error1.20
I(0) (real space) i0_real3.4330e+08
I(0) uncertainty (real space) i0_real_error5.1880e+06
Rg (reciprocal space) rg_reciprocal45.61
I(0) (reciprocal space) i0_reciprocal343300000.0000
Solution quality estimate total_estimate0.8753
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary60.6
Skewness Skewness skewness0.249
Kurtosis Kurtosis kurtosis-0.551
Angular range angular_range— – 0.1750 −1
Current regularization parameter α current_alpha0.0001
Highest regularization parameter α highest_alpha19270000.0000
Real-space data points n_real_points36
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.898; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.902; Smooth: 0.780

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (12 domains)

Domain ID domain_idd3mpua1
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_idd3mpua2
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_idd3mpub1
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_idd3mpub2
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_idd3mpuc1
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_idd3mpuc2
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_idd3mpud1
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_idd3mpud2
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_idd3mpue1
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_idd3mpue2
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_idd3mpuf1
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_idd3mpuf2
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 (12 domains)

Domain ID domain_id3mpuA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1370 — Aspartate/ornithine carbamoyltransferase
Domain ID domain_id3mpuA02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1370 — Aspartate/ornithine carbamoyltransferase
Domain ID domain_id3mpuB01
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_id3mpuB02
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_id3mpuC01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1370 — Aspartate/ornithine carbamoyltransferase
Domain ID domain_id3mpuC02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1370 — Aspartate/ornithine carbamoyltransferase
Domain ID domain_id3mpuD01
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_id3mpuD02
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_id3mpuE01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1370 — Aspartate/ornithine carbamoyltransferase
Domain ID domain_id3mpuE02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1370 — Aspartate/ornithine carbamoyltransferase
Domain ID domain_id3mpuF01
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_id3mpuF02
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)