Search results
Results from the WOW.Com Content Network
Lisa's in good company; over 18,000 Amazon customers are smitten with the Tramontina nonstick pan too. Pros 👍 "This is the best nonstick pan I’ve ever used," raved one convert .
Proline hydroxylation requires ascorbic acid . The most obvious, first effects (gingival and hair problems) of absence of ascorbic acid in humans come from the resulting defect in hydroxylation of proline residues of collagen, with reduced stability of the collagen molecule, causing scurvy.
Tramontina is a family-run Brazilian metallurgical company founded in 1911 by italian immigrant Valentin Tramontina. The company manufactures cutlery , cookware, home appliances, and tools for agriculture, gardening, industrial work, automotive maintenance, civil construction, and electrical repair.
^a EINECS for Proline ^a CID 6148988 from PubChem ^a CID 6137 from PubChem This page was last edited on 12 April 2023, at 11:38 (UTC). Text is available ...
Furthermore, proline is rarely found in α and β structures as it would reduce the stability of such structures, because its side chain α-nitrogen can only form one nitrogen bond. Additionally, proline is the only amino acid that does not form a red-purple colour when developed by spraying with ninhydrin for uses in chromatography. Proline ...
A prominent example of proline catalysis is the addition of acetone or hydroxyacetone to a diverse set of aldehydes catalyzed by 20-30% proline catalyst loading with high (>99%) enantioselectivity yielding diol products. [37] As refined by List and Notz, the aforementioned reaction produces diol products as follows: [38]
Proline and its higher homolog pipecolic acid affect the secondary structure of protein. D-alpha-amino acid - L-alpha-amino acid sequence can induce beta hairpin. [1] It suggested that acyclic secondary amino acids are more flexible than cyclic secondary amino acids in protein by replacement of pipecolic acid by N-methyl-L-alanine in efrapeptin C.
proline. Secondary amino acids, amino acids containing a secondary amine group are sometimes named imino acids, [2] [3] though this usage is obsolescent. [1] The only proteinogenic amino acid of this type is proline, although the related non-proteinogenic amino acids hydroxyproline [4] [5] [6] and pipecolic acid [7] have often been included in studies of this class of compounds.