Peptide sequence: MASVVVKTIW QSKEIHEAGD TPTGVESCSQ LVPEAPRRVT SRAKGIPKKK Sequence homology: Cow: 86%; Dog: 86%; Human: 100%; Mouse: 86%; Pig: 86%; Rabbit: 79%; Rat: 86%. A novel putative serine/threonine kinase substrate gene (TSKS, for testis-specific k