5-guanidino-2-oxopentanoate + H(+) = 4-guanidinobutanal + CO2
5-guanidino-2-oxopentanoate + h(+) = 4-guanidinobutanal + co2
"5-guanidino-2-oxopentanoate decarboxylase"
"5-guanidino-2-oxopentanoate decarboxylase"