the side chains of the nonpolar amino acids tend to cluster together in the interior of the protein. The nonpolar R-group fill up the interior of the folded protein and help
1) Optical activity of amino acids: All standard amino acids except glycine have an asymmetric carbon atom [α-carbon atom bound to four different substituent groups (i.e., a carboxyl group, amino group, R-group, and a hydrogen atom). -The asymmetric α-carbon atom is thus a chiral cent...
18 of free amino acids in tobacco were simultaneously determined by high performance anion-exchange chromatography with integrated pulsed amperometric detection method.The results showed that the recoveries for 18 amino acids were in the range of 80%-115%,the detection limits for 18 amino acids were...
The effects of Meloidogyne incognita on the free amino acid contents of resistant and susceptible roots of different tomato genotypes were studied. Fourteen free amino acids were commonly found in the roots of all tomato genotypes. Proline, cystine and tyrosine were not detected in some of the te...
The first intake of colostrum changes to a great degree the quantitative composition of free plasma amino acids in newborn piglets. A considerable increase of concentration has been observed especially with respect to those amino acids which are most abundant in colostrum (leucine, proline and tyros...
Related to Aminoacids:Proteins amino acid n. Any of various compounds containing an amino group (NH2), a carboxylic acid group (COOH), and a distinctive side chain, especially any of the 20 amino acids that link together to form proteins. Some amino acids (called nonessential) can be synth...
1. 1. The free amino acids were compared in the thoraces of flown and unflown honey bees, Apis mellifera L. Both workers and drones were tested. 2. 2. The amino acids showed little change with flight detectable by thin-layer chromatography on silica gel. By spectrophotometric analysis, a...
L., Free Amino Acids Exhibit Anthozoan “Host Factor” Activity: They Induce the Release of Photosynthate from Symbiotic Dinoflagellates In Vitro, Proc. Na... KY Biel,RD Gates,L Muscatine - 《Russian Journal of Plant Physiology》 被引量: 28发表: 2007年 The transcription factor NF-κB in ...
A reversed-phase high performance liquid chromatographic method was developed for determining free amino acids in burley tobacco. The test was done by OPA/3-mercaptopropionic acid as the pre-column derivatizing reagent. Chromatographic column was Elitte C18 column (4.6 mm × 250 mm i.d., 5 μ...
As amino acids are added and the chain lengthens, the prefix reflect the number of residues eg. Tripeptides contain three amino acid residues Amino acid residue with the free amino group is called the N-terminal residue and is written to the left Amino acid residue with free carboxyl group ...