PMID- 8280083 OWN - NLM STAT- MEDLINE DCOM- 19940207 LR - 20190501 IS - 0264-6021 (Print) IS - 1470-8728 (Electronic) IS - 0264-6021 (Linking) VI - 296 ( Pt 3) IP - Pt 3 DP - 1993 Dec 15 TI - Molecular cloning and tissue distribution of pig transforming growth factor alpha. PG - 837-42 AB - Transforming growth factor alpha (TGF alpha) was originally identified as a product of tumour tissues and transformed cells in culture. Although it is now clear that expression of this factor is not restricted to neoplastic cells, there remains relatively little information about the sites of expression of TGF alpha in normal tissues. Therefore, an amplified DNA fragment encoding the pig TGF alpha precursor was cloned by reverse transcription-PCR (RT-PCR) using RNA isolated from normal skin tissue as the template. Nucleotide sequence analysis predicts a 160-residue transmembrane polypeptide that differs from the rat, mouse and human TGF alpha precursors at 14, 15 and six sites respectively. The distribution of TGF alpha mRNA in a wide variety of pig tissues was analysed by RT-PCR, using oligonucleotide primers based on the pig TGF alpha cDNA sequence. TGF alpha transcripts were detected in RNA isolated from 17 of the 22 tissues analysed, including four previously unreported sites. Using an antibody raised against a synthetic TGF alpha peptide, we have immunolocalized TGF alpha protein to cells within the red pulp of the spleen and to the distal convoluted tubules of the kidney. FAU - Vaughan, T J AU - Vaughan TJ AD - Department of Cellular Physiology, A.F.R.C. Institute of Animal Physiology and Genetics Research, Babraham, Cambridge, U.K. FAU - James, P S AU - James PS FAU - Pascall, J C AU - Pascall JC FAU - Brown, K D AU - Brown KD LA - eng SI - GENBANK/D17642 SI - GENBANK/D17799 SI - GENBANK/D17800 SI - GENBANK/D17801 SI - GENBANK/D17802 SI - GENBANK/X71014 SI - GENBANK/X71481 SI - GENBANK/X71774 SI - GENBANK/X74555 SI - GENBANK/X76909 PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Biochem J JT - The Biochemical journal JID - 2984726R RN - 0 (DNA, Complementary) RN - 0 (RNA, Messenger) RN - 0 (Transforming Growth Factor alpha) SB - IM MH - Amino Acid Sequence MH - Animals MH - Base Sequence MH - Cloning, Molecular MH - DNA, Complementary MH - Humans MH - Immunohistochemistry MH - Kidney/*metabolism MH - Molecular Sequence Data MH - RNA, Messenger/metabolism MH - Spleen/*metabolism MH - Swine MH - Tissue Distribution MH - Transforming Growth Factor alpha/*genetics/metabolism PMC - PMC1137770 EDAT- 1993/12/15 00:00 MHDA- 1993/12/15 00:01 PMCR- 1994/06/15 CRDT- 1993/12/15 00:00 PHST- 1993/12/15 00:00 [pubmed] PHST- 1993/12/15 00:01 [medline] PHST- 1993/12/15 00:00 [entrez] PHST- 1994/06/15 00:00 [pmc-release] AID - 10.1042/bj2960837 [doi] PST - ppublish SO - Biochem J. 1993 Dec 15;296 ( Pt 3)(Pt 3):837-42. doi: 10.1042/bj2960837.