PMID- 16001329 OWN - NLM STAT- MEDLINE DCOM- 20050929 LR - 20090219 IS - 0018-5043 (Print) IS - 0018-5043 (Linking) VI - 37 IP - 6 DP - 2005 Jun TI - Menin molecular interactions: insights into normal functions and tumorigenesis. PG - 369-74 AB - Multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominant disease predisposed by heterozygous germline mutations in the MEN1 tumor suppressor gene. Biallelic loss of MEN1 resulting from small mutation and/or loss of heterozygosity occurs in a large tissue spectrum of MEN1 tumors or non-hereditary tumors. Mouse models of MEN1 underexpression or overexpression have also supported the tumor-suppressor effect of the MEN1 gene. Menin, the 610-amino-acid protein encoded by MEN1, is expressed ubiquitously and found predominantly in the nucleus. Sequence analyses do not reveal motifs of known function other than two nuclear localization sequences. Menin has been found to partner in vitro with a variety of proteins that comprise transcription factors, DNA processing factors, DNA repair proteins, and cytoskeletal proteins. The diverse functions of menin interactors suggest roles for menin in multiple biological pathways. Inactivation of menin switches its JunD partner from a downstream action of growth suppression to growth promotion. This is a plausible mechanism for menin tumorigenesis. FAU - Agarwal, S K AU - Agarwal SK AD - National Institute of Diabetes and Digestive and Kidney Diseases/NIH, 9000 Rockville Pike, Bethesda, MD 20892-1802, USA. SunitaA@intra.niddk.nih.gov FAU - Kennedy, P A AU - Kennedy PA FAU - Scacheri, P C AU - Scacheri PC FAU - Novotny, E A AU - Novotny EA FAU - Hickman, A B AU - Hickman AB FAU - Cerrato, A AU - Cerrato A FAU - Rice, T S AU - Rice TS FAU - Moore, J B AU - Moore JB FAU - Rao, S AU - Rao S FAU - Ji, Y AU - Ji Y FAU - Mateo, C AU - Mateo C FAU - Libutti, S K AU - Libutti SK FAU - Oliver, B AU - Oliver B FAU - Chandrasekharappa, S C AU - Chandrasekharappa SC FAU - Burns, A L AU - Burns AL FAU - Collins, F S AU - Collins FS FAU - Spiegel, A M AU - Spiegel AM FAU - Marx, S J AU - Marx SJ LA - eng PT - Journal Article PT - Review PL - Germany TA - Horm Metab Res JT - Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme JID - 0177722 RN - 0 (Cytoskeletal Proteins) RN - 0 (MEN1 protein, human) RN - 0 (Proto-Oncogene Proteins) RN - 0 (Transcription Factors) RN - 9007-49-2 (DNA) SB - IM MH - Animals MH - Cell Nucleus/metabolism MH - Cytoskeletal Proteins/metabolism MH - DNA/metabolism MH - *Gene Expression Regulation, Neoplastic/genetics MH - Humans MH - Multiple Endocrine Neoplasia Type 1/genetics/*metabolism MH - Protein Binding MH - Proto-Oncogene Proteins/genetics/*metabolism MH - Transcription Factors/metabolism MH - Transcription, Genetic RF - 57 EDAT- 2005/07/08 09:00 MHDA- 2005/09/30 09:00 CRDT- 2005/07/08 09:00 PHST- 2005/07/08 09:00 [pubmed] PHST- 2005/09/30 09:00 [medline] PHST- 2005/07/08 09:00 [entrez] AID - 10.1055/s-2005-870139 [doi] PST - ppublish SO - Horm Metab Res. 2005 Jun;37(6):369-74. doi: 10.1055/s-2005-870139.