Hdc-c protein coding gene O Hdc-a Hdc-s|Hdc-e|Hdc-c|Hdc-a|L-histidine decarboxylase L-histidine decarboxylase Hdc-s Hdc http://identifiers.org/mgd/MGI:96062 - MGI:96062 Gene Hdc-e genetic mapping histidine decarboxylase