>tr|F5H226|F5H226_HUMAN hydroxymethylbilane synthase OS=Homo sapiens GN=HMBS MSGNGNAAATAEENSPKMRVIRVGTRKSQLARIQTDSVVATLKASYPGLQFEIIAMSTTG DKILDTALSKIGEKSLFTKELEHALEKNERENPHDAVVFHPKFVGKTLETLPEKSVVGTS SLRRAAQLQRKFPHLEFRSIRGNLNTRLRKLDEQQEFSAIILATAGLQRMGWHNRVGQIL HPEECMYAVGQ