This family contains a presumed domain that is about 100 amino acids long. All members of this family contain a conserved CLPQ motif. The c-ski proto-oncogene has been shown to influence proliferation, morphological transformation and myogenic differentiation [1]. Sno, a Ski proto-oncogene homologue, is expressed in two isoforms and plays a role in the response to proliferation stimuli. Dachshund also contains this domain. It is involved in various aspects of development [2,3].

1: Cloning and expression of the axolotl proto-oncogene ski. Ludolph DC, Neff AW, Parker MA, Mescher AL, Smith RC, Malacinski GM; Biochim Biophys Acta 1995;1260:102-104. PMID:7999783

2: dachshund encodes a nuclear protein required for normal eye and leg development in Drosophila. Mardon G, Solomon NM, Rubin GM; Development 1994;120:3473-3486. PMID:7821215

3: The Drosophila sex determination hierarchy modulates wingless and decapentaplegic signaling to deploy dachshund sex-specifically in the genital imaginal disc. Keisman EL, Baker BS; Development 2001;128:1643-1656. PMID:11290302

4: Mammalian and Drosophila dachshund genes are related to the Ski proto-oncogene and are expressed in eye and limb. Hammond KL, Hanson IM, Brown AG, Lettice LA, Hill RE; Mech Dev 1998;74:121-131. PMID:9651501