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As of 2011, 28 types of human collagen have been identified, described, and classified according to their structure. [8] This diversity shows collagen's diverse functionality. [9] All of the types contain at least one triple helix. [8] Over 90% of the collagen in humans is type I & III collagen. [10] Fibrillar (type I, II, III, V, XI) Non-fibrillar
1281 12825 Ensembl ENSG00000168542 ENSMUSG00000026043 UniProt P02461 P08121 RefSeq (mRNA) NM_000090 NM_001376916 NM_009930 RefSeq (protein) NP_000081 NP_034060 Location (UCSC) Chr 2: 188.97 – 189.01 Mb Chr 1: 45.35 – 45.39 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Type III Collagen is a homotrimer, or a protein composed of three identical peptide chains (monomers), each ...
Chemical Structure of Type I Collagen. Type I collagen has a triple-helical form which is caused by its amino acid composition. Its specific domain follows an order of G-X-Y In which the X and Y slots are occupied by any amino acid other than glycine however these slots are typically occupied by both hydroxyproline and proline, not in any particular order. [5]
Collagen alpha-1(IV) chain (COL4A1) is a protein that in humans is encoded by the COL4A1 gene on chromosome 13. [ 5 ] [ 6 ] It is ubiquitously expressed in many tissues and cell types. [ 7 ] COL4A1 is a subunit of the type IV collagen and plays a role in angiogenesis . [ 8 ]
Collagen alpha-1(VII) chain is a protein that in humans is encoded by the COL7A1 gene. [5] It is composed of a triple helical, collagenous domain flanked by two non-collagenous domains, and functions as an anchoring fibril between the dermal-epidermal junction in the basement membrane. [ 6 ]
Collagen IV is the more common usage, as opposed to the older terminology of "type-IV collagen". [citation needed] Collagen IV exists in all metazoan phyla, to whom they served as an evolutionary stepping stone to multicellularity. [1] There are six human genes associated with it: [2] COL4A1, COL4A2, COL4A3, COL4A4, COL4A5, COL4A6
Collagen alpha-3(VI) chain is a protein that in humans is encoded by the COL6A3 gene. [ 5 ] [ 6 ] [ 7 ] This protein is an alpha chain of type VI collagen that aids in microfibril formation. [ 8 ] As part of type VI collagen, this protein has been implicated in Bethlem myopathy, Ullrich congenital muscular dystrophy (UCMD), and other diseases ...
1285 12828 Ensembl ENSG00000169031 ENSMUSG00000079465 UniProt Q01955 Q9QZS0 RefSeq (mRNA) NM_000091 NM_031362 NM_031363 NM_031364 NM_031365 NM_031366 NM_007734 RefSeq (protein) NP_000082 NP_031760 Location (UCSC) Chr 2: 227.16 – 227.31 Mb Chr 1: 82.56 – 82.7 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Collagen alpha-3(IV) chain is a protein that in humans is encoded by the ...