The protein encoded by this gene is a member of the keratin gene family. It is one of the type I hair keratin genes which are clustered in a region of chromosome 17q21.2 and have the same direction of transcription. As a type I hair keratin, it is an acidic protein which heterodimerizes with type II keratins to form hair and nails. There are two isoforms of this protein, encoded by two separate genes, KRT33A (this gene) and KRT33B.[7]
^"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^Rogers MA, Schweizer J, Kreig T, Winter H (Nov 1995). "A novel human type I hair keratin gene: evidence for two keratin hHa3 isoforms". Mol Biol Rep. 20 (3): 155–61. doi:10.1007/BF00990548. PMID7565656. S2CID24487602.
Rogers MA, Winter H, Langbein L, et al. (2005). "The human type I keratin gene family: characterization of new hair follicle specific members and evaluation of the chromosome 17q21.2 gene domain". Differentiation. 72 (9–10): 527–40. doi:10.1111/j.1432-0436.2004.07209006.x. PMID15617563.