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.
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hWH; Protein Wuho homolog; TRM82; TRM82 tRNA methyltransferase 82 homolog; tRNA (guanine-N(7)-)-methyltransferase non-catalytic subunit WDR4; tRNA (guanine-N(7)-)-methyltransferase subunit WDR4; WD repeat-containing protein 4; WDR4