ISDA

Entry Detail

PDB ID:

3DEZ

Keywords:

TRANSFERASE

Title:

Crystal structure of Orotate phosphoribosyltransferase from Streptococcus mutans

Biological Source:

Source Organism:

Streptococcus mutans

Host Organism:

Escherichia coli BL21(DE3)

PDB Version:

Deposition Date:

2008-06-11

Release Date:

2009-06-16

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.40 Å

R-Value Free:

0.24

R-Value Work:

0.21

R-Value Observed:

0.21

Space Group:

P 41 21 2

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Orotate phosphoribosyltransferase
Mutations:F92L
Chain IDs:A, B
Chain Length:243
Number of Molecules:2
Biological Source:Streptococcus mutans

UniProt ID:Q8DTV2 Pfam ID:PF00156 EC:2.4.2.10

Ligand Molecules

SO4

Primary Citation

Structure of orotate phosphoribosyltransferase from the caries pathogen Streptococcus mutans

Liu, C.P, Xu, R, Gao, Z.Q, Xu, J.H, Hou, H.F, Li, L.Q, She, Z, Li, L.F, Su, X.D, Liu, P, Dong, Y.H.Show

Acta Crystallogr.,Sect.F 66 498 502 (2010)

PMID: 20445243 DOI: 10.1107/S1744309110009243

Abstact

Orotate phosphoribosyltransferase (OPRTase) catalyzes the OMP-forming step in de novo pyrimidine-nucleotide biosynthesis. Here, the crystal structure of OPRTase from the caries pathogen Streptococcus mutans is reported at 2.4 A resolution. S. mutans OPRTase forms a symmetric dimer and each monomer binds two sulfates at the active sites. The structural symmetry of the sulfate-binding sites and the missing loops in this structure are consistent with a symmetric catalysis mechanism.

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Protein

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Disease

Primary Citation of related structures