tRNA (guanine-N(7)-)-methyltransferase subunit WDR4 is an enzyme subunit that in humans is encoded by the WDR4gene.[5]
This gene encodes a member of the WD repeat protein family. WD repeats are minimally conserved regions of approximately 40 amino acids typically bracketed by Gly-His and Trp-Asp (GH-WD), which may facilitate formation of heterotrimeric or multiprotein complexes. Members of this family are involved in a variety of cellular processes, including cell cycle progression, signal transduction, apoptosis, and gene regulation.
This gene is excluded as a candidate for a form of nonsyndromic deafness (DFNB10), but is still a candidate for other disorders mapped to 21q22.3 as well as for the development of Down syndrome phenotypes. Two transcript variants encoding the same protein have been found for this gene.[5]
Michaud J, Kudoh J, Berry A, et al. (2001). "Isolation and characterization of a human chromosome 21q22.3 gene (WDR4) and its mouse homologue that code for a WD-repeat protein". Genomics. 68 (1): 71–9. doi:10.1006/geno.2000.6258. PMID10950928.