“…; Rogers and Powell, 1993;Powell and Rogers, 1997;Rogers et al, 2001Rogers et al, , 2002Wu et al, 2008). In humans, five clusters of KRTAP genes, which include approximately 100 individual KRTAP genes, have been characterized on chromosomes 11p15, 11q13, 17q12-21, 21q22.1, and 21q23, respectively (Rogers et al, , 2002(Rogers et al, , 2004Shibuya et al, 2004;Yahagi et al, 2004). Studies of specific KRTAP gene families have shown that the cluster harboring five high-sulfur (KRTAP1-3, 16, and 29) and three ultrahigh-sulfur (KRTAP4, 9, and 17) families are located on chromosome 17q12-21 Wu et al, 2008).…”