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Proline (symbol Pro or P) [4] is an organic acid classed as a proteinogenic amino acid (used in the biosynthesis of proteins), although it does not contain the amino group-NH 2 but is rather a secondary amine .
In protein, hydroxyproline is incorporated into protein by hydroxylation of proline. Pipecolic acid, a heavier analog of proline, is found in efrapeptin. Sarcosine is a N-methylized glycine so its methyl group is used in many biochemical reactions. Azetidine-2-carboxylic acid, which is a smaller homolog of proline in plants.
Proline-rich proteins (PRPs) are a class of intrinsically disordered proteins [1] (IDPs) containing several repeats of a short proline-rich sequence. Many tannin-consuming animals secrete a tannin-binding protein in their saliva. Tannin-binding capacity of salivary mucin is directly related to its proline content.
Hydroxyproline is found in few proteins other than collagen. For this reason, hydroxyproline content has been used as an indicator to determine collagen and/or gelatin amount. However, the mammalian proteins elastin and argonaute 2 have collagen-like domains in which hydroxyproline is formed.
Proteins were found to yield amino acids after enzymatic digestion or acid hydrolysis. In 1902, Emil Fischer and Franz Hofmeister independently proposed that proteins are formed from many amino acids, whereby bonds are formed between the amino group of one amino acid with the carboxyl group of another, resulting in a linear structure that ...
For many people, the humble egg is considered an almost perfect food due to all the nutrients it contains, including protein, micronutrients like lutein and choline, and a variety of vitamins such ...
A new report by the Clean Label Project has found that protein powders may contain something other than muscle-building nutrients: lead and cadmium, both of which are toxic.. The national ...
Chromosome 19 open reading frame 55 (C19orf55), also known as PROSER3 or Proline And Serine-Rich Protein 3, is an uncharacterized human protein-coding gene.PROSER3 (accession: NM_001039887) is found on the plus strand of chromosome 19 at gene locus q.13.12 at the span of 12,991 base pairs, see Figure "Ideogram of chromosome 19 showing PROSER3 in Humans".