>2F9D_1|Chains A, B|Pre-mRNA branch site protein p14|Homo sapiens (9606) MAMQAAKRANIRLPPEVNRILYIRNLPYKITAEEMYDIFGKYGPIRQIRVGNTPETRGTAYVVYEDIFDAKNACDHLSGFNVCNRYLVVLYYNANRAFQKMDTKKKEEQLKLLKEKYGINTDPPK >2F9D_2|Chains C[auth P], D[auth Q]|Splicing factor 3B subunit 1|Homo sapiens (9606) GHIMSMTPEQLQAWRWEREIDERNRPLSDEELDAMFPEGYKVL