Putrescine aminotransferase

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Putrescine aminotransferase
Identifiers
EC no. 2.6.1.82
CAS no. 98982-73-







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Putrescine aminotransferase (EC 2.6.1.82, putrescine-alpha-ketoglutarate transaminase, YgjG, putrescine:alpha-ketoglutarate aminotransferase, PAT, putrescine:2-oxoglutarate aminotransferase, putrescine transaminase) is an enzyme with systematic name butane-1,4-diamine:2-oxoglutarate aminotransferase. [1] [2] [3] This enzyme catalyses the following chemical reaction

putrescine + 2-oxoglutarate 1-pyrroline + L-glutamate + H2O (overall reaction)
(1a) putrescine + 2-oxoglutarate 4-aminobutanal + L-glutamate
(1b) 4-aminobutanal 1-pyrroline + H2O (spontaneous)

This enzyme is a pyridoxal-phosphate protein.

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References

  1. ↑ Prieto-Santos MI, Martín-Checa J, Balaña-Fouce R, Garrido-Pertierra A (February 1986). "A pathway for putrescine catabolism in Escherichia coli". Biochimica et Biophysica Acta (BBA) - General Subjects. 880 (2–3): 242–4. doi:10.1016/0304-4165(86)90085-1. PMID   3510672.
  2. ↑ Samsonova NN, Smirnov SV, Novikova AE, Ptitsyn LR (August 2005). "Identification of Escherichia coli K12 YdcW protein as a gamma-aminobutyraldehyde dehydrogenase". FEBS Letters. 579 (19): 4107–12. doi: 10.1016/j.febslet.2005.06.038 . PMID   16023116.
  3. ↑ Samsonova NN, Smirnov SV, Altman IB, Ptitsyn LR (January 2003). "Molecular cloning and characterization of Escherichia coli K12 ygjG gene". BMC Microbiology. 3 (1): 2. doi: 10.1186/1471-2180-3-2 . PMC   150594 . PMID   12617754.
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