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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2006-9-18
pubmed:abstractText
The Mitochondrial Tumor suppressor 1 (MTUS1) gene is a newly identified candidate tumor suppressor gene at chromosomal position 8p22. We report here that MTUS1 encodes a family of proteins whose leader member (ATIP1) was previously isolated in our laboratory as a novel interacting partner of the angiotensin II AT2 receptor involved in growth inhibition (Nouet, JBC 279: 28989-97, 2004). The MTUS1 gene contains 17 coding exons distributed over 112 kb of genomic DNA. Alternative exon usage generates three major transcripts (ATIP1, ATIP3 and ATIP4), each showing different tissue distribution. ATIP polypeptides are identical in their carboxy-terminal region carrying four coiled-coil domains. In their amino-terminal portion, ATIP polypeptides exhibit distinct motifs for localisation in the cytosol, nucleus or cell membrane, suggesting that MTUS1 gene products may be involved in a variety of intracellular functions in an AT2-dependent and independent manner. ATIP1 is ubiquitous and highly expressed in the brain. ATIP3 is the major transcript in tissues (prostate, bladder, breast, ovary, colon) corresponding to cancer types with frequent loss of heterozygosity at 8p22. Interestingly, ATIP4 is a brain-specific transcript highly abundant in the cerebellum and fetal brain. High evolutionary conservation of ATIP amino-acid sequences suggests important biological roles for this new family of proteins in tumor suppression and/or brain function.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0378-1119
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
380
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
127-36
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:16887298-Alternative Splicing, pubmed-meshheading:16887298-Base Sequence, pubmed-meshheading:16887298-Blotting, Northern, pubmed-meshheading:16887298-Central Nervous System, pubmed-meshheading:16887298-Chromosome Mapping, pubmed-meshheading:16887298-Chromosomes, Human, Pair 8, pubmed-meshheading:16887298-Evolution, Molecular, pubmed-meshheading:16887298-Exons, pubmed-meshheading:16887298-Female, pubmed-meshheading:16887298-Gene Expression, pubmed-meshheading:16887298-Genes, Tumor Suppressor, pubmed-meshheading:16887298-Genetic Variation, pubmed-meshheading:16887298-Humans, pubmed-meshheading:16887298-Introns, pubmed-meshheading:16887298-Male, pubmed-meshheading:16887298-Multigene Family, pubmed-meshheading:16887298-Receptor, Angiotensin, Type 2, pubmed-meshheading:16887298-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:16887298-Sequence Analysis, pubmed-meshheading:16887298-Sequence Homology, Amino Acid, pubmed-meshheading:16887298-Tissue Distribution, pubmed-meshheading:16887298-Tumor Suppressor Proteins
pubmed:year
2006
pubmed:articleTitle
Structural organization and expression of human MTUS1, a candidate 8p22 tumor suppressor gene encoding a family of angiotensin II AT2 receptor-interacting proteins, ATIP.
pubmed:affiliation
Institut Cochin, Département de Biologie Cellulaire, Paris, F-75014, France.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't