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  • 1
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    Identification of a gene located at chromosome 5q21 that is mutated in colorectal cancers (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1991-03-15
    Description: Recent studies have suggested the existence of a tumor suppressor gene located at chromosome region 5q21. DNA probes from this region were used to study a panel of sporadic colorectal carcinomas. One of these probes, cosmid 5.71, detected a somatically rearranged restriction fragment in the DNA from a single tumor. Further analysis of the 5.71 cosmid revealed two regions that were highly conserved in rodent DNA. These sequences were used to identify a gene, MCC (mutated in colorectal cancer), which encodes an 829-amino acid protein with a short region of similarity to the G protein-coupled m3 muscarinic acetylcholine receptor. The rearrangement in the tumor disrupted the coding region of the MCC gene. Moreover, two colorectal tumors were found with somatically acquired point mutations in MCC that resulted in amino acid substitutions. MCC is thus a candidate for the putative colorectal tumor suppressor gene located at 5q21. Further studies will be required to determine whether the gene is mutated in other sporadic tumors or in the germ line of patients with an inherited predisposition to colonic tumorigenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kinzler, K W -- Nilbert, M C -- Vogelstein, B -- Bryan, T M -- Levy, D B -- Smith, K J -- Preisinger, A C -- Hamilton, S R -- Hedge, P -- Markham, A -- 6M 07184/PHS HHS/ -- CA 06973/CA/NCI NIH HHS/ -- CA 09243/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1991 Mar 15;251(4999):1366-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Genetics Laboratory, Johns Hopkins Oncology Center, Baltimore, MD 21231.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1848370" target="_blank"〉PubMed〈/a〉
    Keywords: Adenomatous Polyposis Coli/*genetics ; Amino Acid Sequence ; Animals ; Base Sequence ; *Chromosomes, Human, Pair 5 ; Colorectal Neoplasms/*genetics ; Exons ; GTP-Binding Proteins/metabolism ; Gene Expression ; *Genes, Tumor Suppressor ; Humans ; Molecular Sequence Data ; Mutation ; Oligonucleotides/chemistry ; Polymerase Chain Reaction ; Proteins/*genetics/metabolism ; Rats ; Sequence Homology, Nucleic Acid ; *Tumor Suppressor Proteins
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Identification of FAP locus genes from chromosome 5q21 (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1991-08-09
    Description: Recent studies suggest that one or more genes on chromosome 5q21 are important for the development of colorectal cancers, particularly those associated with familial adenomatous polyposis (FAP). To facilitate the identification of genes from this locus, a portion of the region that is tightly linked to FAP was cloned. Six contiguous stretches of sequence (contigs) containing approximately 5.5 Mb of DNA were isolated. Subclones from these contigs were used to identify and position six genes, all of which were expressed in normal colonic mucosa. Two of these genes (APC and MCC) are likely to contribute to colorectal tumorigenesis. The MCC gene had previously been identified by virtue of its mutation in human colorectal tumors. The APC gene was identified in a contig initiated from the MCC gene and was found to encode an unusually large protein. These two closely spaced genes encode proteins predicted to contain coiled-coil regions. Both genes were also expressed in a wide variety of tissues. Further studies of MCC and APC and their potential interaction should prove useful for understanding colorectal neoplasia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kinzler, K W -- Nilbert, M C -- Su, L K -- Vogelstein, B -- Bryan, T M -- Levy, D B -- Smith, K J -- Preisinger, A C -- Hedge, P -- McKechnie, D -- CA06973/CA/NCI NIH HHS/ -- CA35494/CA/NCI NIH HHS/ -- CA44688/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1991 Aug 9;253(5020):661-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Genetics Laboratory, Johns Hopkins University School of Medicine, Baltimore, MD 21231.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1651562" target="_blank"〉PubMed〈/a〉
    Keywords: Adenomatous Polyposis Coli/*genetics ; Amino Acid Sequence ; Base Sequence ; Chromosome Mapping ; *Chromosomes, Human, Pair 5 ; Colon/physiology ; Colonic Neoplasms/genetics ; Exons ; Gene Expression ; Humans ; Intestinal Mucosa/*physiology ; Molecular Sequence Data ; Muscles/physiology ; Oligonucleotide Probes ; Polymerase Chain Reaction ; Probability ; Protein Conformation ; Receptors, Cholinergic/physiology ; Restriction Mapping ; Sequence Homology, Nucleic Acid
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
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