PMID- 7598693 OWN - NLM STAT- MEDLINE DCOM- 19950801 LR - 20190612 IS - 0006-291X (Print) IS - 0006-291X (Linking) VI - 211 IP - 3 DP - 1995 Jun 26 TI - G protein mutations in tumours of the pituitary, parathyroid and endocrine pancreas. PG - 1063-70 AB - A subset of growth-hormone (GH) producing pituitary adenomas harbour mutations at residues Arg201 and Gln227 of the alpha subunit of the stimulatory G protein (Gs alpha). One such mutation has been reported in a GH-producing tumour from a patient with multiple endocrine neoplasia type 1 (MEN 1) although mutations have not been reported in other tumours associated with MEN 1. We used PCR-induced restriction site analysis to screen for these mutations in 80 tumours of the pituitary, parathyroid and endocrine pancreas. Arg201 mutations were detected in 1 non-functioning and 4 GH-producing pituitary tumours. No mutations were found in any of the endocrine tumours tested at Arg179 of the Gi2 alpha subunit, a homologous residue to Arg201 of Gs alpha. Our results indicate oncogenesis in the majority of pituitary and parathyroid tumours is independent of mutations of Gs and Gi2 alpha. FAU - Boothroyd, C V AU - Boothroyd CV AD - Queensland Cancer Fund Research Unit, Queensland Institute of Medical Research, Herston, Australia. FAU - Grimmond, S M AU - Grimmond SM FAU - Cameron, D P AU - Cameron DP FAU - Hayward, N K AU - Hayward NK LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Biochem Biophys Res Commun JT - Biochemical and biophysical research communications JID - 0372516 RN - 9002-72-6 (Growth Hormone) RN - EC 3.1.21.4 (Deoxyribonucleases, Type II Site-Specific) RN - EC 3.6.1.- (GTP-Binding Proteins) SB - IM MH - Base Sequence MH - Deoxyribonucleases, Type II Site-Specific/metabolism MH - GTP-Binding Proteins/*genetics MH - Growth Hormone/metabolism MH - Humans MH - Islets of Langerhans/*pathology MH - Molecular Sequence Data MH - Multiple Endocrine Neoplasia Type 1/genetics MH - *Mutation MH - Pancreatic Neoplasms/*genetics MH - Parathyroid Neoplasms/*genetics MH - Pituitary Neoplasms/*genetics MH - Polymerase Chain Reaction MH - Sequence Analysis, DNA EDAT- 1995/06/26 00:00 MHDA- 1995/06/26 00:01 CRDT- 1995/06/26 00:00 PHST- 1995/06/26 00:00 [pubmed] PHST- 1995/06/26 00:01 [medline] PHST- 1995/06/26 00:00 [entrez] AID - S0006291X85719195 [pii] AID - 10.1006/bbrc.1995.1919 [doi] PST - ppublish SO - Biochem Biophys Res Commun. 1995 Jun 26;211(3):1063-70. doi: 10.1006/bbrc.1995.1919.