Essential protein that promotes the first step of splicing; required for the final stages of spliceosome maturation and activation; interacts with Prp2p, which may release Spp2p from the spliceosome following the first cleavage reaction; stimulates Prp2p ATPase activity [Source:SGD;Acc:S000005674]

Chromosome XV: 608,640-609,197 reverse strand.

R64-1-1:BK006948.2

This gene has 1 transcript (splice variant) and 192 orthologues.

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