Immunogen sequence: KVLISDSLDP CCRKILQDGG LQVVEKQNLS KEELIAELQD CEGLIVRSAT KVTADVINAA EKLQVVGRAG TGVDNVDLEA ATRKGILVMN T. PHGDH gene encodes the enzyme which is involved in the early steps of L-serine synthesis in animal cells. L-serine is required for D