ISDA

Entry Detail

PDB ID:

1IDD

Keywords:

OXIDOREDUCTASE (NAD(A)-CHOH(D))

Title:

ISOCITRATE DEHYDROGENASE Y160F MUTANT APO ENZYME

Biological Source:

Source Organism:

Escherichia coli

Host Organism:

PEMBL (DENTE ET AL 1983 NUC ACIDS RES 11,1645)

PDB Version:

Deposition Date:

1995-01-18

Release Date:

1996-03-08

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.50 Å

R-Value Free:

0.24

R-Value Work:

0.21

R-Value Observed:

0.21

Space Group:

P 43 21 2

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:ISOCITRATE DEHYDROGENASE
Mutations:Y160F
Chain IDs:A
Chain Length:416
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P08200 Pfam ID:PF00180 EC:1.1.1.42

Ligand Molecules

Primary Citation

Mutagenesis and Laue structures of enzyme intermediates: isocitrate dehydrogenase.

Bolduc, J.M, Dyer, D.H, Scott, W.G, Singer, P, Sweet, R.M, Koshland, D.E, Stoddard, B.L, Hurley, J.H, Dean, A.M, Koshland Junior, D.E, Stroud, R.M, Hurley, J.H, Dean, A.M, Thorsness, P.E, Koshland Junior, D.E, Stroud, R.M, Hurley, J.H, Dean, A.M, Sohl, J.L, Koshland Junior, D.E, Stroud, R.M, Hurley, J.H, Thorsness, P.E, Ramalingam, V, Helmers, N.H, Koshland Junior, D.E, Stroud, R.M.Show

Science 268 1312 1318 (1995)

PMID: 7761851

Abstact

Site-directed mutagenesis and Laue diffraction data to 2.5 A resolution were used to solve the structures of two sequential intermediates formed during the catalytic actions of isocitrate dehydrogenase. Both intermediates are distinct from the enzyme-substrate and enzyme-product complexes. Mutation of key catalytic residues changed the rate determining steps so that protein and substrate intermediates within the overall reaction pathway could be visualized.

Legend

Protein

Chemical

Disease

Primary Citation of related structures