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  • Title: PRP16 is an RNA-dependent ATPase that interacts transiently with the spliceosome.
    Author: Schwer B, Guthrie C.
    Journal: Nature; 1991 Feb 07; 349(6309):494-9. PubMed ID: 1825134.
    Abstract:
    The assembly of the spliceosome is an ATP-dependent process. The splicing factor PRP16 contains variations of several motifs that define the eIF-4A-like ATP-dependent RNA helicase family. The protein has now been purified and shown to exhibit RNA-dependent ATPase activity. PRP16 is required specifically for the second catalytic step of the splicing reaction in vitro. This function requires ATP binding and/or hydrolysis, which appears to be concomitant with release of the protein from the spliceosome. PRP16 may be the prototype for a set of splicing factors which use ATP to drive a cycle of conformational changes.
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