Trafficking protein particle complex subunit 2 is a protein that in humans is encoded by the TRAPPC2P1gene.
This gene has been described as a transcribed retropseudogene (or retro-xaptonuon) based on its structure which lacks most of the introns of SEDL and the detection of transcripts from this locus. Most retropseudogenes are thought to not express protein products. A protein product could potentially be encoded by this retropseudogene that would be identical to the protein product of the SEDL gene. However, it remains unclear whether this gene encodes a protein product or is a transcribed retropseudogene.
Gécz J, Hillman MA, Gedeon AK, et al. (2001). "Gene structure and expression study of the SEDL gene for spondyloepiphyseal dysplasia tarda". Genomics. 69 (2): 242–51. doi:10.1006/geno.2000.6326. PMID11031107.