Guanine deaminase

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guanine deaminase
Symbol GDA
Entrez 9615
HUGO 4212
OMIM 139260
RefSeq NM_004293
UniProt Q9Y2T3
Other data
EC number
Locus Chr. 9 q21.11-21.33

Guanine deaminase (EC, guanase, guanine aminase, GAH, guanine aminohydrolase) is an enzyme which converts guanine to xanthine.[1][2][3]


  1. ^ Hitchings, G.H. and Falco, E.A. (1944). "The identification of guanine in extracts of Girella nigricans. The specificity of guanase". Proc. Natl. Acad. Sci. USA 30: 294–297. doi:10.1073/pnas.30.10.294. PMC 1078714. PMID 16578130. 
  2. ^ Kalckar, H.M. (1947). "Differential spectrophotometry of purine compounds by means of specific enzymes. III. Studies of the enzymes of purine metabolism". J. Biol. Chem. 167: 461–475. 
  3. ^ Rabinowitz, J.C. and Barker, H.A. (1956). "Purine fermentation by Clostridium cylindrosporum. II. Purine transformations". J. Biol. Chem. 218 (1): 161–173. PMID 13278325. 

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