Immunogen sequence: SQGCKDIAYQ LMHNIRDIDV IMGGGRKYMY PKNKTDVEYE SDEKARGTRL DGLDLVDTWK SFKPRYKHSH FIWNRTELLT LDPHNVDYLL GLFEPGDMQY ELNRNNVTDP SLSEMVVVA. Alkaline phosphatase is a homodimeric protein enzyme (86 kDa), containing two zinc atoms crucial to it