Maximum parsimony tree of the high glycine/tyrosine keratin-associated proteins (HGT-KAPs) identified in goats, sheep and humans, together with the mouse KAP20-2 sequence. The tree was constructed using the predicted amino acid sequences. The numbers at the forks indicate the bootstrap confidence values. The caprine KAPs are indicated with a prefix “g”, while the sequences of sheep, human, and mouse are indicated with “s”, “h” and “m”, respectively. The three newly identified goat KAP20-2 sequences are shown in a box, and the GenBank accession numbers for the other HGT-KAPs are: NM_001193399 (sKAP6-1), KT725832 (sKAP6-2), NM_181604 (hKAP6-2), KT725837 (sKAP6-3), KT725840 (sKAP6-4), KT725845 (sKAP6-5), AY510121 (gKAP7-1), X05638 (sKAP7-1), NM_181606 (hKAP7-1), AY510122 (gKAP8-1), X05639 (sKAP8-1), NM_175857 (hKAP8-1), AY510123 (gKAP8-2), KF220646 (sKAP8-2), NM_181607 (hKAP19-1), NM_181609 (hKAP19-3), NM_181610 (hKAP19-4), NM_181611 (hKAP19-5), NM_00130312 (hKAP19-6), NM_181614 (hKAP19-7), AB096964 (hKAP19-8), NM_181615 (hKAP20-1), NM_181616 (hKAP20-2), NM_001163615 (mKAP20-2), NM_181619 (hKAP21-1), NM_181617 (hKAP21-2), KX377616 (sKAP22-1), and NM_181620 (hKAP22-1).