Based on limited published evidence, KRTAP6-2 encodes a keratin-associated protein essential for hair shaft structure. According to UniProt annotations, KRTAP6-2 functions in the hair cortex interfilamentary matrix, where it cross-links with hair keratins through extensive disulfide bonding via cysteine residues, contributing to rigid and resistant hair shaft formation [UniProt]. The protein demonstrates cytosolic localization and protein binding capabilities. In dromedary camels, KRTAP6-2 expression was significantly downregulated in sarcoptic mange-infected animals compared to healthy controls, emerging as a promising biomarker for disease diagnosis and prognosis 1. KRTAP6-2 clusters with other KAP genes in mammalian genomes 2.