ISDA

Deposition Date 2005-04-15

Release Date 2005-12-06

Last Version Date 2024-05-29

Entry Detail

PDB ID:

1X1Z

Keywords:

LYASE

Title:

Orotidine 5'-monophosphate decarboxylase (odcase) complexed with BMP (produced from 6-cyanoump)

Biological Source:

Source Organism:

Methanothermobacter thermautotrophicus (Taxon ID: 145262)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.45 Å

R-Value Free:

0.18

R-Value Work:

0.16

R-Value Observed:

0.16

Space Group:

P 1 21 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Orotidine 5'-phosphate decarboxylase
Gene (Uniprot):pyrF
Mutations:L226R, N227I
Chain IDs:A, B
Chain Length:252
Number of Molecules:2
Biological Source:Methanothermobacter thermautotrophicus

UniProt ID:O26232 Pfam ID:PF00215 EC:4.1.1.23

Ligand Molecules

BMP

GOL

Primary Citation

An unprecedented twist to ODCase catalytic activity

Fujihashi, M, Bello, A.M, Poduch, E, Wei, L, Annedi, S.C, Pai, E.F, Kotra, L.P.Show

J.Am.Chem.Soc. 127 15048 15050 (2005)

PMID: 16248642 DOI: 10.1021/ja054865u

Abstact

Orotidine-5'-monophosphate decarboxylase (ODCase) has evolved to catalyze a decarboxylation reaction, most probably via a carbanion species at the C6 position of orotidine-5'-monophosphate. We reveal an unusual biochemical pathway of conversion of 6-cyano-uridine-5'-monophosphate by ODCase to barbiturate-5'-monophosphate via perhaps an electrophilic center at the C6 position, leading to inhibition. This potential of ODCase is very useful in the design of novel inhibitors.

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Primary Citation of related structures