Peptide sequence: YIHDFNRRHT EKQKESTLTR TNRTSPNNAR KQISRSTNSN FSKTSPKALV Sequence homology: Cow: 93%; Dog: 100%; Guinea Pig: 93%; Horse: 100%; Human: 100%; Mouse: 79%; Rabbit: 93%; Rat: 86%. Chromodomain Y is a primate-specific Y-chromosomal gene family