ID 3.5.3.7 DE guanidinobutyrase. CA 4-guanidinobutanoate + H2O = 4-aminobutanoate + urea. CC -!- Also acts, very slowly, on 5-guanidinopentanoate and 6-guanidino- CC hexanoate. DR Q8KZT5, GBH_ARTS8 ; Q6CIB4, GBU1_KLULA ; Q9I3S3, GBUA_PSEAE ; DR Q9BSE5, GDAH_HUMAN ; A2AS89, GDAH_MOUSE ; Q0D2L3, GDAH_RAT ; //