ISDA: 4YDR

Deposition Date 2015-02-23

Release Date 2015-11-11

Last Version Date 2024-10-30

Entry Detail

PDB ID:

4YDR

Keywords:

OXIDOREDUCTASE

Title:

Crystal structure of oxidized homoserine dehydrogenase of Sulfolobus tokodaii

Biological Source:

Source Organism:

Sulfolobus tokodaii (strain DSM 16993 / JCM 10545 / NBRC 100140 / 7) (Taxon ID: 273063)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.60 Å

R-Value Free:

0.22

R-Value Work:

0.19

R-Value Observed:

0.19

Space Group:

P 1 21 1

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Homoserine dehydrogenase
Gene (Uniprot):hom
Chain IDs:A, B
Chain Length:304
Number of Molecules:2
Biological Source:Sulfolobus tokodaii (strain DSM 16993 / JCM 10545 / NBRC 100140 / 7)

UniProt ID:F9VNG5 Pfam ID:PF03447, PF00742 EC:1.1.1.3

Ligand Molecules

Primary Citation

Structural insight into activation of homoserine dehydrogenase from the archaeonSulfolobus tokodaiivia reduction.

Tomonaga, Y, Kaneko, R, Goto, M, Ohshima, T, Yoshimune, K.Show

Biochem Biophys Rep 3 14 17 (2015)

PMID: 29124164 DOI: 10.1016/j.bbrep.2015.07.006

Abstact

Homoserine dehydrogenase (HSD; 305 amino acid residues) catalyzes an NAD(P)-dependent reversible reaction between l-homoserine and aspartate 4-semialdehyde and is involved in the aspartate pathway. HSD from the hyperthermophilic archaeon Sulfolobus tokodaii was markedly activated (2.5-fold) by the addition of 0.8 mM dithiothreitol. The crystal structure of the homodimer indicated that the activation was caused by cleavage of the disulfide bond formed between two cysteine residues (C303) in the C-terminal regions of the two subunits.

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Primary Citation of related structures

Abstact

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