ISDA

Entry Detail

PDB ID:

1UCR

Keywords:

UNKNOWN FUNCTION

Title:

Three-dimensional crystal structure of dissimilatory sulfite reductase D (DsrD)

Biological Source:

Source Organism:

Desulfovibrio vulgaris

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2003-04-18

Release Date:

2003-10-14

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.20 Å

R-Value Free:

0.18

R-Value Work:

0.13

R-Value Observed:

0.13

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Protein dsvD
Chain IDs:A, B
Chain Length:78
Number of Molecules:2
Biological Source:Desulfovibrio vulgaris

UniProt ID:Q46582 Pfam ID:PF08679

Ligand Molecules

SO4

Primary Citation

Crystal Structure of Dissimilatory Sulfite Reductase D (DsrD) Protein-Possible Interaction with B- and Z-DNA by Its Winged-Helix Motif

Mizuno, N, Voordouw, G, Miki, K, Sarai, A, Higuchi, Y.Show

STRUCTURE 11 1133 1140 (2003)

PMID: 12962631 DOI: 10.1016/S0969-2126(03)00156-4

Abstact

The crystal structure of DsrD from Desulfovibrio vulgaris Hildenborough has been determined at 1.2 A resolution. DsrD is in a dimeric form in the crystal, and five sulfate anions were located on the surface. The structure of DsrD comprises a winged-helix motif, which shows the highest structural homology to similar motifs found in Z-DNA binding proteins and some B-DNA binding proteins. The core structure of the molecule is constructed by intramolecular interactions of hydrophobic residues, which are well conserved in DNA binding proteins, suggesting that these proteins belong to the same superfamily on the basis of the structure. These results indicate a possible role of DsrD in transcription or translation of genes for enzymes catalyzing dissimilatory sulfite reduction.

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Primary Citation of related structures