carboxyl group


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Related to carboxyl group: Carboxyl functional group

carboxyl group

The acidic functional group found in organic molecules, consisting of carbon with one doubled-bonded (carbonyl group) O2, and a single-bonded O2.

carboxyl group

the monovalent group -COOH, found in aldehydes and ketones.
References in periodicals archive ?
Porcine pepsin A was partially sequenced and suggested to have a critical carboxyl group at the active site that was specifically modified by diazoacetyl-D,L-norleucine methyl ester (DAN) in the presence of cupric ions.
In this study the 20 nm nanoparticles were coupled via their surface carboxyl group to the amino groups on the Herceptin antibody using the EDC method (10, 17).
The binding energy of O1s is difficult to differentiate, but the binding energy of carboxyl group O of malay acid coordinated with Al at 532.
The amino group loses hydrogen, while the neighboring carboxyl group loses a hydroxide group.
The attack at the C-2 position results in the addition of a carboxyl group and the terminal carbon is displaced to become a methyl group on the subterminal carbon.
The formation of the amino acid chains in making proteins occurs by peptide bonding where a carboxyl group of one amino acid links up with an amino group of another amino acid.
The content of total phenolic hydroxyl groups in residual lignins, which decreased with decreasing cooking temperature, also correlated well with the bleachability, as measured by the total kappa factor, and functional groups such as copper number and carboxyl group of the bleached pulp.
2 ppm) of the amino acid part of the molecule with the carboxyl group of the amino acid C-17 (170.
EDC (1-[3-Dimethylaminopropyl]--3-ethylcarbo-diimide hydrochloride) is a water-soluble carbodiimide which is used to activate the carboxyl group in amide reactions and cross-link proteins and nucleic acids for preparing immunoconjugates.
Carboxyl group was introduced into the purified carbon nanotube support by refluxing it in 60 mL of 3 M HN[O.