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Collagen (/ ˈ k ɒ l ə dʒ ə n /) is the main structural protein in the extracellular matrix of a body's various connective tissues. As the main component of connective tissue, it is the most abundant protein in mammals. [1] 25% to 35% of a mammalian body's protein content is collagen.
Collagen, a key component of the animal extracellular matrix, is made through cleavage of pro-collagen by collagenase once it has been secreted from the cell. This stops large structures from forming inside the cell itself. In addition to being produced by some bacteria, collagenase can be made by the body as part of its normal immune response.
Collagen, type I, alpha 1, also known as alpha-1 type I collagen, is a protein that in humans is encoded by the COL1A1 gene. COL1A1 encodes the major component of type I collagen , the fibrillar collagen found in most connective tissues , including cartilage .
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]
Connective tissue is found in between other tissues everywhere in the body, including the nervous system. The three meninges, membranes that envelop the brain and spinal cord, are composed of connective tissue. Most types of connective tissue consists of three main components: elastic and collagen fibers, ground substance, and cells. [2]
Type V Collagen is considered a regulatory fibril forming collagen. [5] Collagen V is associated with the COL5A1 gene which is the gene which provides instructions to produce Collagen V. Type V Collagen, like other collagens, is made up of procollagen molecules. Collagen V molecular isoforms are α1(V)α2(V)α3(V), α1(V)3, and α1(V)2 α2(V).
Collagen VI (ColVI) is a type of collagen primarily associated with the extracellular matrix of skeletal muscle. [1] ColVI maintains regularity in muscle function and stabilizes the cell membrane. [ 2 ]
12833 Ensembl ENSG00000142156 ENSMUSG00000001119 UniProt P12109 Q04857 RefSeq (mRNA) NM_001848 NM_009933 RefSeq (protein) NP_001839 NP_034063 Location (UCSC) Chr 21: 45.98 – 46.01 Mb Chr 10: 76.54 – 76.56 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Collagen alpha-1(VI) chain is a protein that in humans is encoded by the COL6A1 gene. Function The collagens are a superfamily of ...
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