1ACM

ARGININE 54 IN THE ACTIVE SITE OF ESCHERICHIA COLI ASPARTATE TRANSCARBAMOYLASE IS CRITICAL FOR CATALYSIS: A SITE-SPECIFIC MUTAGENESIS, NMR AND X-RAY CRYSTALLOGRAPHY STUDY

Structural Biology Knowledgebase: 1ACM SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Work: 0.180

Literature

Macromolecules
Sequence Display for 1ACM

Classification: TRANSFERASE (CARBAMOYL-P ASPARTATE)

Total Structure Weight: 103288.97

Macromolecule Entities
Molecule Chains Length Organism Details
ASPARTATE CARBAMOYLTRANSFERASE, CATALYTIC CHAIN A, C 310 Escherichia coli EC#: 2.1.3.2 IUBMB
Mutation: R54A, E60Q, E147Q, Q149E, Q196E
Gene Name(s): pyrB b4245 JW4204
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG
ASPARTATE CARBAMOYLTRANSFERASE REGULATORY CHAIN B, D 153 Escherichia coli Mutation: Q8G
Gene Name(s): pyrI b4244 JW4203
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 2 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
PAL
Query on PAL

A, C N-(PHOSPHONACETYL)-L-ASPARTIC ACID
C6 H10 N O8 P
ZZKNRXZVGOYGJT-VKHMYHEASA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
ZN
Query on ZN

B, D ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Observed:
  • Space Group: P 3 2 1

Unit Cell:

Length (Å) Angle (°)
a = 122.20 α = 90.00
b = 122.20 β = 90.00
c = 156.20 γ = 120.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 1992-07-08
  • Released Date: 1992-07-15
  • Deposition author(s): Stevens, R.C., Kantrowitz, E.R., Lipscomb, W.N.

Revision History

  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4
  • 2011-07-13
    Type: Biological assembly | Details: Added software calculated values