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The human alpha 2(XI) collagen gene (COL11A2) maps to the centromeric border of the major histocompatibility complex on chromosome 6. 1989

I M Hanson, and P Gorman, and V C Lui, and K S Cheah, and E Solomon, and J Trowsdale
Imperial Cancer Research Fund, Lincoln's Inn Fields, London, United Kingdom.

Type XI collagen, a minor structural component of cartilage fibrils, is composed of three chains, alpha 1(XI), alpha 2(XI), and alpha 3(XI). Using a cloned fragment of the human alpha 2(XI) collagen gene (COL11A2) as a molecular probe for in situ hybridization and somatic cell hybrid mapping, we have localized the gene to the short arm of chromosome 6, region 21.3. By exploiting the rich source of probes provided by the major histocompatibility complex (MHC) genes, which also map to this chromosomal band, we have constructed macrorestriction maps of the region by pulsed-field gel electrophoresis and have localized the alpha 2(XI) collagen gene to the centromeric extreme of the MHC. Finally, we have demonstrated, by the isolation of overlapping cosmid clones, that the gene is 45 kb centromeric to the HLA-DPB2 locus and oriented with the 3' end toward the MHC. The COL11A2 locus thus demarcates the proximal boundary of the MHC. This finding may have implications for the understanding of certain MHC-linked diseases.

UI MeSH Term Description Entries
D008285 Major Histocompatibility Complex The genetic region which contains the loci of genes which determine the structure of the serologically defined (SD) and lymphocyte-defined (LD) TRANSPLANTATION ANTIGENS, genes which control the structure of the IMMUNE RESPONSE-ASSOCIATED ANTIGENS, HUMAN; the IMMUNE RESPONSE GENES which control the ability of an animal to respond immunologically to antigenic stimuli, and genes which determine the structure and/or level of the first four components of complement. Histocompatibility Complex,Complex, Histocompatibility,Complex, Major Histocompatibility,Complices, Histocompatibility,Complices, Major Histocompatibility,Histocompatibility Complex, Major,Histocompatibility Complices,Histocompatibility Complices, Major,Major Histocompatibility Complices
D002503 Centromere The clear constricted portion of the chromosome at which the chromatids are joined and by which the chromosome is attached to the spindle during cell division. Centromeres
D002871 Chromosome Banding Staining of bands, or chromosome segments, allowing the precise identification of individual chromosomes or parts of chromosomes. Applications include the determination of chromosome rearrangements in malformation syndromes and cancer, the chemistry of chromosome segments, chromosome changes during evolution, and, in conjunction with cell hybridization studies, chromosome mapping. Banding, Chromosome,Bandings, Chromosome,Chromosome Bandings
D002874 Chromosome Mapping Any method used for determining the location of and relative distances between genes on a chromosome. Gene Mapping,Linkage Mapping,Genome Mapping,Chromosome Mappings,Gene Mappings,Genome Mappings,Linkage Mappings,Mapping, Chromosome,Mapping, Gene,Mapping, Genome,Mapping, Linkage,Mappings, Chromosome,Mappings, Gene,Mappings, Genome,Mappings, Linkage
D002875 Chromosomes In a prokaryotic cell or in the nucleus of a eukaryotic cell, a structure consisting of or containing DNA which carries the genetic information essential to the cell. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed) Chromosome
D002896 Chromosomes, Human, Pair 6 A specific pair GROUP C CHROMSOMES of the human chromosome classification. Chromosome 6
D003094 Collagen A polypeptide substance comprising about one third of the total protein in mammalian organisms. It is the main constituent of SKIN; CONNECTIVE TISSUE; and the organic substance of bones (BONE AND BONES) and teeth (TOOTH). Avicon,Avitene,Collagen Felt,Collagen Fleece,Collagenfleece,Collastat,Dermodress,Microfibril Collagen Hemostat,Pangen,Zyderm,alpha-Collagen,Collagen Hemostat, Microfibril,alpha Collagen
D003360 Cosmids Plasmids containing at least one cos (cohesive-end site) of PHAGE LAMBDA. They are used as cloning vehicles. Cosmid
D004587 Electrophoresis, Agar Gel Electrophoresis in which agar or agarose gel is used as the diffusion medium. Electrophoresis, Agarose Gel,Agar Gel Electrophoresis,Agarose Gel Electrophoresis,Gel Electrophoresis, Agar,Gel Electrophoresis, Agarose
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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