5-guanidino-2-oxopentanoate + AH2 + NH4(+) => D-arginine + A + H2O
5-guanidino-2-oxopentanoate + ah2 + nh4(+) => d-arginine + a + h2o
5-guanidino-2-oxopentanoate + AH2 + NH4(+) => D-arginine + A + H2O
5-guanidino-2-oxopentanoate + ah2 + nh4(+) => d-arginine + a + h2o