PMID- 10376215 OWN - NLM STAT- MEDLINE DCOM- 19990913 LR - 20211203 IS - 1042-5179 (Print) IS - 1026-7913 (Linking) VI - 10 IP - 2 DP - 1999 TI - A comparative study of rat and human Tmp21 (p23) reveals the pseudogene-like features of human Tmp21-II. PG - 121-6 AB - Tmp21 (p23) is involved in biosynthetic transport from the endoplasmic reticulum to the Golgi complex. We have recently characterized two cDNA-variants of human Tmp21, the Tmp21-isoforms-I and -II. Because of the lack of cDNA sequence data and protein expression data, it was not clear if Tmp21-II encodes a functional Tmp21-protein. Here we describe the cloning of the full length human Tmp21-II transcript. The putative open reading frame of Tmp21-II contains a reading frame jump and a nonsense mutation in comparison to all other Tmp21-I (p23) members. Our data indicate that hum-Tmp21-II is transcribed, but not translated. We conclude that Tmp21-II cDNA derives from a neutral pseudogene, which originates from a duplication event of the human Tmp21-isoform-I. FAU - Horer, J AU - Horer J AD - Institute of Physiology II, University of the Saarland, Saar, Germany. FAU - Blum, R AU - Blum R FAU - Feick, P AU - Feick P FAU - Nastainczyk, W AU - Nastainczyk W FAU - Schulz, I AU - Schulz I LA - eng SI - GENBANK/AJ004912 SI - GENBANK/AJ004913 SI - GENBANK/AJ004914 PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - DNA Seq JT - DNA sequence : the journal of DNA sequencing and mapping JID - 9107800 RN - 0 (DNA, Complementary) RN - 0 (Membrane Proteins) RN - 0 (Nucleocytoplasmic Transport Proteins) RN - 0 (Protein Isoforms) RN - 0 (TMED10 protein, human) RN - 0 (TMED10P1 protein, human) RN - 0 (Tmed10 protein, rat) SB - IM MH - Amino Acid Sequence MH - Animals MH - Base Sequence MH - Cricetinae MH - DNA, Complementary MH - Humans MH - Membrane Proteins/*genetics MH - Molecular Sequence Data MH - Nucleocytoplasmic Transport Proteins MH - Protein Isoforms/genetics MH - Rats EDAT- 1999/06/22 10:00 MHDA- 2000/08/12 11:00 CRDT- 1999/06/22 10:00 PHST- 1999/06/22 10:00 [pubmed] PHST- 2000/08/12 11:00 [medline] PHST- 1999/06/22 10:00 [entrez] AID - I307J981055 [pii] AID - 10.3109/10425179909008429 [doi] PST - ppublish SO - DNA Seq. 1999;10(2):121-6. doi: 10.3109/10425179909008429.