MAPKBP1 is expressed at high level, 1.7 times the average gene in this release. MAPKBP1 contains 40 different introns (39 gt-ag, 1 gc-ag). Transcription produces 20 different mRNAs, 14 alternatively spliced variants and 6 unspliced forms. There are 6 probable alternative promotors, 6 non overlapping alternative last exons and 2 validated alternative polyadenylation sites (see the diagram). The mRNAs appear to differ by truncation of the 5' end, truncation of the 3' end, presence or absence of 26 cassette exons, overlapping exons with different boundaries, alternative splicing or retention of 10 introns. 1495 bp of this gene are antisense to spliced gene plargley, raising the possibility of regulated alternate expression. There are 2 articles specifically referring to this gene in PubMed. Proteins are expected to localize in nucleus.