A trajectory was calculated for peptide Q1E using the CHARMM22*81 force field and TIP3P water model80 starting from a fully helical conformation to obtain different structures with Glui+4 → Leui side chain to main chain hydrogen bonds involving the glutamic acid carboxyl group that served ...
The dried PU-PAA was redissolved at a concentration of 20 w/w % in 70% ethanol and mixed in a 25:2 (v/v) ratio with a solution comprising 33.3 w/v % EDC and 33.3 w/v % NHS in 70% ethanol to yield around 10% (mol/mol) NHS functionalization of the carboxyl groups. ...
The C-4 position of Rha serves as the attachment site for carbohydrate sidechains such as arabinan, galactan or arabinogalactan [7], [8], [9]. Acetyl esters can be present at the C-2 or C-3 positions of GalUA, and methyl esters can be present at the carboxyl group [3]. Download:...
Chemical reactions of fatty acids with special reference to the carboxyl group. Eur J Lipid Sci Technol , 2001 , 103: 307 -314 Google Scholar [13] Guo A, Javni I, Petrovic Z. Rigid polyurethane foams based on soybean oil. J. Appl. Polym. Sci. , 2000 , 77: 467 -473 Goo...
Arg322 (Arg447) and Arg151 (Arg151), the motif 3 arginine and the arginine from the motif 2 loop, respectively, interact with the γ-phosphate, and Arg151 is positioned by Glu142 and Glu218 (which is functionally equivalent to the C-terminal carboxyl group of Tyr477 in PrsTt, Figure ...
To quantitatively explore the effect of pH, we examined the behaviour of carboxylated melamine resin (COOH) particles where the charge arises from carboxyl groups characterized by a nominal pK ≈ 4.5. We observed a clear maximum |w| in the range of pK < pH < pK +3 , ...
(Tm8), and by the carboxyl group of Asp182 (Tm5) (Fig.4a, b). To explore the functional importance of Na3, we separately mutated Ser345, Ser346 and Asp182 to Ala. Asp182Ala abolishes Neu5Ac uptake, while Ser345Ala showed reduced uptake and Ser346Ala had slightly increased uptake (...
According to a third variant of the procedure according to the invention, an active ester formed from the partner bearing the carboxyl group participating in the coupling reaction is reacted with the other partner bearing an amine function. Useful activated esters are the para-nitrophenyl ester and...
2. The rubber composition according to claim 1, wherein the content of isoprene elastomer is within a range extending from 60 to 100 phr. 3. The rubber composition according to claim 1, wherein the isoprene elastomer is selected from the group consisting of natural rubber, a synthetic polyis...
amide- functional group containing a carbonyl group linked to a nitrogen atom. amine- compound in which one or more hydrogen atom in ammonia is replaced by an organic functional group. amino acid- an organic acid containing a carboxyl (-COOH) and amine (-NH2) functional group along with a ...