Biology:D-threonine aldolase

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D-threonine aldolase
Identifiers
EC number4.1.2.42
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

D-threonine aldolase (EC 4.1.2.42, D-TA, DTA, low specificity D-TA, low specificity D-threonine aldolase) is an enzyme with systematic name D-threonine acetaldehyde-lyase (glycine-forming).[1][2][3][4][5][6] This enzyme catalyses the following chemical reaction

(1) D-threonine [math]\displaystyle{ \rightleftharpoons }[/math] glycine + acetaldehyde
(2) D-allothreonine [math]\displaystyle{ \rightleftharpoons }[/math] glycine + acetaldehyde

This pyridoxal-phosphate protein is activated by divalent metal cations (e.g. Co2+, Ni2+, Mn2+ or Mg2+).

References

  1. "Isolation and characterization of D-threonine aldolase, a pyridoxal-5'-phosphate-dependent enzyme from Arthrobacter sp. DK-38". European Journal of Biochemistry 248 (2): 385–93. September 1997. doi:10.1111/j.1432-1033.1997.00385.x. PMID 9346293. 
  2. "A novel metal-activated pyridoxal enzyme with a unique primary structure, low specificity D-threonine aldolase from Arthrobacter sp. Strain DK-38. Molecular cloning and cofactor characterization". The Journal of Biological Chemistry 273 (27): 16678–85. July 1998. doi:10.1074/jbc.273.27.16678. PMID 9642221. 
  3. "A new route to L-threo-3-[4-(methylthio)phenylserine], a key intermediate for the synthesis of antibiotics: recombinant low-specificity D-threonine aldolase-catalyzed stereospecific resolution". Applied Microbiology and Biotechnology 51 (5): 586–91. May 1999. doi:10.1007/s002530051436. PMID 10390816. 
  4. "Gene cloning and overproduction of low-specificity D-threonine aldolase from Alcaligenes xylosoxidans and its application for production of a key intermediate for parkinsonism drug". Applied Microbiology and Biotechnology 54 (1): 44–51. July 2000. doi:10.1007/s002539900301. PMID 10952004. 
  5. Liu, J.Q.; Dairi, T.; Itoh, N.; Kataoka, M.; Shimizu, S.; Yamada, H. (2000). "Diversity of microbial threonine aldolases and their application". J. Mol. Catal. B 10 (1–3): 107–115. doi:10.1016/s1381-1177(00)00118-1. 
  6. "Threonine aldolase and alanine racemase: novel examples of convergent evolution in the superfamily of vitamin B6-dependent enzymes". Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics 1647 (1–2): 214–9. April 2003. doi:10.1016/s1570-9639(03)00050-5. PMID 12686135. 

External links