1CQ7

ASPARTATE AMINOTRANSFERASE (E.C. 2.6.1.1) COMPLEXED WITH C5-PYRIDOXAL-5P-PHOSPHATE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.215 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Free energy requirement for domain movement of an enzyme

Ishijima, J.Nakai, T.Kawaguchi, S.Hirotsu, K.Kuramitsu, S.

(2000) J.Biol.Chem. 275: 18939-18945

  • Primary Citation of Related Structures:  1C9C, 1CQ6, 1CQ8

  • PubMed Abstract: 
  • Domain movement is sometimes essential for substrate recognition by an enzyme. X-ray crystallography of aminotransferase with a series of aliphatic substrates showed that the domain movement of aspartate aminotransferase was changed dramatically from ...

    Domain movement is sometimes essential for substrate recognition by an enzyme. X-ray crystallography of aminotransferase with a series of aliphatic substrates showed that the domain movement of aspartate aminotransferase was changed dramatically from an open to a closed form by the addition of only one CH(2) to the side chain of the C4 substrate CH(3)(CH(2))C((alpha))H(NH(3)(+))COO(-). These crystallographic results and reaction kinetics (Kawaguchi, S., Nobe, Y., Yasuoka, J., Wakamiya, T., Kusumoto, S., and Kuramitsu, S. (1997) J. Biochem. (Tokyo) 122, 55-63; Kawaguchi, S. and Kuramitsu, S. (1998) J. Biol. Chem. 273, 18353-18364) enabled us to estimate the free energy required for the domain movement.


    Organizational Affiliation

    Department of Biology, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan. Osaka 558-8585, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ASPARTATE AMINOTRANSFERASE
A
396Escherichia coli (strain K12)Gene Names: aspC
EC: 2.6.1.1
Find proteins for P00509 (Escherichia coli (strain K12))
Go to UniProtKB:  P00509
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PY5
Query on PY5

Download SDF File 
Download CCD File 
A
2-[O-PHOSPHONOPYRIDOXYL]-AMINO-PENTANOIC ACID
VITAMIN B6 COMPLEXED WITH 2-AMINO-PENTANOIC ACID
C13 H21 N2 O7 P
YYAMSLLSQINIQO-NSHDSACASA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.215 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 157.580α = 90.00
b = 85.590β = 90.00
c = 78.920γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
X-PLORmodel building
X-PLORrefinement
SCALEPACKdata scaling
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-12-20
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance