Immunogen sequence: VLQERFQVLN PTWSAEAHGL APDGDVFLSE EQVRSFQVPT CVQCGGHLKP DVVFFGDTVN PDKVDFVHKR VKEADSLLVV GS. This gene encodes a member of the sirtuin family of proteins, homologs to the yeast Sir2 protein. Members of the sirtuin family are characteri