BUD22 has been shown in yeast to be a nuclear protein involved in bud-site selection. It plays a role in positioning the proximal bud pole signal [1]. More recently it has been shown to be involved in ribosome biogenesis [2,3].

1: A genomic study of the bipolar bud site selection pattern in Saccharomyces cerevisiae. Ni L, Snyder M; Mol Biol Cell. 2001;12:2147-2170. PMID:11452010

2: BUD22 affects Ty1 retrotransposition and ribosome biogenesis in Saccharomyces cerevisiae. Dakshinamurthy A, Nyswaner KM, Farabaugh PJ, Garfinkel DJ; Genetics. 2010; [Epub ahead of print] PMID:20498295

3: Rational extension of the ribosome biogenesis pathway using network-guided genetics. Li Z, Lee I, Moradi E, Hung NJ, Johnson AW, Marcotte EM; PLoS Biol. 2009;7:e1000213. PMID:19806183