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Brain expressed, X-linked 4 is a protein in humans that is encoded by the BEX4 gene.
This gene is a member of the brain expressed X-linked gene family. The proteins encoded by some of the other members of this family act as transcription elongation factors which allow RNA polymerase II to escape pausing during elongation. Multiple alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Aug 2011].
References
BEX4 Wikipedia(Text) CC BY-SA