Of the twenty amino acids in the mammalian body, only serine and aspartate occur in D-configuration as well as L-configuration in significant amount. D-serine is selectively concentrated in the brain, localized to protoplasmic astrocytes that ensheath synapses and distributed similarly to N-methyl-...
In this study we asked whether it is the hydroxy group of this amino acid or its D-configuration that is responsible for the effect. We synthesized four viroisin analogues and submitted them to conformational analysis by NMR as well as to an actin binding assay. While the rotating-frame ...
氨基酸（aminoacids）氨基酸（amino acids）:是含有一个碱性氨基和一个酸性羧基的有机化合物。构成天然蛋白质的氨基连接在α-碳原子上，这种氨基酸称α-氨基酸，α-氨基酸是肽和蛋白质的构件分子，共有20种。除α-氨基酸外，细胞还含有其他氨基酸。◇必需氨基酸（essential amino acids）指人（或其它脊椎动物）自己不...
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开通VIP 化学及化工专业词汇英语翻译(D-I) daguerreotype 达盖尔银版 daily output 日产量 dalton's law 道尔顿定律 daltonide 道尔顿式化合物 dammar 达玛尸 dammar varnish 达玛胶漆 damper 减震器 daniell cell 丹聂耳电池 dark color 深色 dark line 暗线 dark plaster 黑石膏 dark reaction 暗反应 database 资料...
has the identical amino acid sequence but with all amino acid residues inl-configuration, also with its C-terminus being amidated. RD2 andl-RD2 have a molecular mass of 1.599 kDa. The peptide KLVFFRRRRRR (peptides & elephants, Potsdam, Germany) consists of 11l-enantiomeric amino acid res...
This is why he was able only to propose a relative configuration for the monosaccharides known in his time. He chose, as the reference compound, the dextrorotatory form of glyceraldehyde, now designated D-(+)-glyceraldehyde, and arbitarily assumed that the OH attached to C-2 in this ...
D-Penicillamine (1) is a colorless crystalline powder with a weak odor typical of sulfur-containing amino acids, and a charact... May 24,2022 Product Name:D-Penicillamine Synonyms:(S)-Penicillamin;(S)-Penicillamine;3-mercapto-d-valin;3-Sulfanylvaline;alpha-amino-beta-methyl-beta-mercaptobutyr...
This compound, also referred to as tert-butyloxycarbonyl-D-4-nitrophenylalanine, is characterized by its tert-butyloxycarbonyl (BOC) protecting group and the D-configuration of the amino acid phenylalanine. It is commonly used as a building block in the synthesis of peptides and proteins, ...
Thus, proteins having only D-configuration chiral amino acids in their amino acid residue sequence (referred to as D-proteins) are unknown in nature. In one embodiment, it is preferred that a D-enzyme have an amino acid residue sequence that corresponds, and preferably is identical to, the ...