Peptide sequence: LSDNLLDSIP GPLPLSLRSV HLQNNLIETM QRDVFCDPEE HKHTRRQLED Sequence homology: Cow: 77%; Dog: 100%; Guinea Pig: 85%; Horse: 92%; Human: 100%; Mouse: 85%; Pig: 100%; Rabbit: 92%; Rat: 100%; Zebrafish: 83%. Opticin, also known as OPTC or OPT,