This entry represents the OSK domain defined by Jeske and colleagues [1]. The domain is related to SGNH hydrolases but lacks the active site residues. The domain binds to RNA [1].

1: The Crystal Structure of the Drosophila Germline Inducer Oskar Identifies Two Domains with Distinct Vasa Helicase- and RNA-Binding Activities. Jeske M, Bordi M, Glatt S, Muller S, Rybin V, Muller CW, Ephrussi A; Cell Rep. 2015;12:587-598. PMID:26190108