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  1. Swiss-model. Domains. InterPro. Type I collagen is the most abundant collagen of the human body, consisting of around 90% of the body's total collagen in vertebrates. Due to this, it is also the most abundant protein type found in all vertebrates. Type I forms large, eosinophilic fibers known as collagen fibers, which make up most of the rope ...

  2. Type II collagen is the basis for hyaline cartilage, including the articular cartilages at joint surfaces. It is formed by homotrimers of collagen, type II, alpha 1 chains. It makes up 50% of all protein in cartilage and 85–90% of collagen of articular cartilage. Type II collagen is organised into fibrils. This fibrillar network of collagen ...

  3. Type III Collagen is a homotrimer, or a protein composed of three identical peptide chains (), each called an alpha 1 chain of type III collagen.Formally, the monomers are called collagen type III, alpha-1 chain and in humans are encoded by the COL3A1 gene.Type III collagen is one of the fibrillar collagens whose proteins have a long, inflexible, triple-helical domain.

  4. en.wikipedia.org › wiki › ProteinProtein - Wikipedia

    A protein is a polyamide. Secondary structure: regularly repeating local structures stabilized by hydrogen bonds. The most common examples are the α-helix, β-sheet and turns. Because secondary structures are local, many regions of different secondary structure can be present in the same protein molecule.

  5. en.wikipedia.org › wiki › PrionPrion - Wikipedia

    Infectious diseases. A prion / ˈpriːɒn / ⓘ is a misfolded protein that can induce misfolding of normal variants of the same protein and trigger cellular death. Prions cause prion diseases known as transmissible spongiform encephalopathies (TSEs) that are transmissible, fatal neurodegenerative diseases in humans and animals.

  6. en.wikipedia.org › wiki › Amino_acidAmino acid - Wikipedia

    Structure of a typical L-alpha-amino acid in the "neutral" form Amino acids are organic compounds that contain both amino and carboxylic acid functional groups.[1] Although over 500 amino acids exist in nature, by far the most important are the 22 α-amino acids incorporated into proteins.[2] Only these 22 appear in the genetic code of life.[3 ...

  7. en.wikipedia.org › wiki › Vitamin_B12Vitamin B12 - Wikipedia

    Vitamin B12, also known as cobalamin, is a water-soluble vitamin involved in metabolism.[2] It is one of eight B vitamins. It is required by animals, which use it as a cofactor in DNA synthesis, and in both fatty acid and amino acid metabolism.[3] It is important in the normal functioning of the nervous system via its role in the synthesis of ...

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