UMP kinase

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UMP kinase
Identifiers
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KEGGKEGG entry
MetaCycmetabolic pathway
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In

enzymology, an UMP kinase (EC 2.7.4.22) is an enzyme that catalyzes the chemical reaction

ATP + UMP ADP + UDP

Thus, the two

substrates of this enzyme are ATP and UMP, whereas its two products are ADP and UDP
.

This enzyme belongs to the family of transferases, specifically those transferring phosphorus-containing groups (phosphotransferases) with a phosphate group as acceptor. The systematic name of this enzyme class is ATP:UMP phosphotransferase. Other names in common use include uridylate kinase, UMPK, uridine monophosphate kinase, PyrH, UMP-kinase, and SmbA. This enzyme participates in pyrimidine metabolism.

Structural studies

As of March 2010, 19

CATH code 3.40.1160.10). These include accession codes 2J4J, 2J4K, 2J4L, and 2VA1
.

Search for all UMP Kinases in the PDB using the enzyme Browser at PDBe. (input the EC number)

References

  • Gilles AM, Barzu O (1995). "Escherichia coli UMP-kinase, a member of the aspartokinase family, is a hexamer regulated by guanine nucleotides and UTP". Biochemistry. 34 (15): 5066–5074.
    PMID 7711027
    .
  • Marco-Marin C, Gil-Ortiz F, Rubio V (2005). "The crystal structure of Pyrococcus furiosus UMP kinase provides insight into catalysis and regulation in microbial pyrimidine nucleotide biosynthesis". J. Mol. Biol. 352 (2): 438–454. .