L-threonine kinase

L-threonine kinase
Identifiers
EC no.2.7.1.177
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L-threonine kinase (EC 2.7.1.177, PduX) is an enzyme with systematic name ATP:L-threonine O3-phosphotransferase. This enzyme catalyses the following chemical reaction

ATP +
 
 
 
 
Reversible left-right reaction arrow
 
 
 
ADP +
 
2D representation of the chemical structure of Q21099038.
threonine phosphate

The enzyme characterised from the bacterium, Salmonella enterica, converts the amino acid, L-threonine, to threonine phosphate by transferring a phosphate group from the cofactor, adenosine triphosphate (ATP), which is converted to adenosine diphosphate (ADP). The reaction is part of the biosynthesis of adenosylcobalamin in this organism.[1][2]

The enzyme takes part in the synthesis of adenosylcobalamin.

References

  1. ↑ Fan C, Bobik TA (April 2008). "The PduX enzyme of Salmonella enterica is an L-threonine kinase used for coenzyme B12 synthesis". The Journal of Biological Chemistry. 283 (17): 11322–9. doi:10.1074/jbc.m800287200. PMID 18308727.
  2. ↑ Fan C, Fromm HJ, Bobik TA (July 2009). "Kinetic and functional analysis of L-threonine kinase, the PduX enzyme of Salmonella enterica". The Journal of Biological Chemistry. 284 (30): 20240–8. doi:10.1074/jbc.m109.027425. PMC 2740450. PMID 19509296.