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Digestion of native collagen in the triple helical region at -Gly bonds. With synthetic peptides, a preference is shown for Gly at P3 and P1', Pro and Ala at P2 and P2', and hydroxyproline, Ala or Arg at P3' Six species of metalloendopeptidase acting on native collagen can be isolated from the medium of Clostridium histolyticum.
The collagen protein is composed of a triple helix, which generally consists of two identical chains (α1) and an additional chain that differs slightly in its chemical composition (α2). [23] The amino acid composition of collagen is atypical for proteins, particularly with respect to its high hydroxyproline content.
Extracellular matrix proteins are commonly used in cell culture systems to maintain stem and precursor cells in an undifferentiated state during cell culture and function to induce differentiation of epithelial, endothelial and smooth muscle cells in vitro. Extracellular matrix proteins can also be used to support 3D cell culture in vitro for ...
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.
Type IV collagen is expressed close to the cancer cells in vivo, forming basement membrane like structures on the cancer cell surface that colocalize with the integrin receptors. The interaction between type IV collagen produced by the cancer cell, and integrins on the surface of the cancer cells, are important for continuous cancer cell growth ...
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 ...
A typical bacterial cell, e.g. E. coli and Staphylococcus aureus, is estimated to contain about 2 million proteins. Smaller bacteria, such as Mycoplasma or spirochetes contain fewer molecules, on the order of 50,000 to 1 million. By contrast, eukaryotic cells are larger and thus contain much more protein. For instance, yeast cells have been ...
Type IV collagen, the major structural component of basement membranes, is a multimeric protein composed of 3 alpha subunits; this gene encodes the alpha 3 subunit. These subunits are encoded by 6 different genes, alpha 1 through alpha 6, each of which can form a triple helix structure with 2 other subunits to form type IV collagen.
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