Immunogen sequence: TKGEVQRSLL EKELESVGIR LNKHKPNIYF KPKKGGGISF NSTVTLTQCS EKLVQLILHE YKIFNAEVLF REDCSPDEFI DVIVGNRVYM PCLYVYNKID QISMEEVDRL A. 3-Phosphoglycerate dehydrogenase (PHGDH; EC 1.1.1.95) catalyzes the transition of 3-phosphoglycerate into 3-ph