Results 251 to 260 of about 267,561 (310)

Amidated carboxyl groups in elastin

Biochimica et Biophysica Acta (BBA) - Protein Structure, 1976
Dicarboxylic amino acids constitute the most numerous residues of insoluble elastin in which are potentially ionizable in the physiological range of pH. These residues are essential in facilitating productive electrostatic interaction between elastase and elastin.
H M, Kagan, R M, Lerch
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Labeling of free carboxyl groups

Journal of Chromatography B: Biomedical Sciences and Applications, 1994
The latest trends in the labeling of free carboxyl groups for high-performance liquid chromatography are reviewed. The labeling reagents for fluorescence detection are mainly discussed according to their reaction type (or functional group). Attention is also paid to the reagents used for ultraviolet detection and for enantiomeric separation.
Y, Yasaka, M, Tanaka
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Carboxyl group modification in glucagon

Biochimica et Biophysica Acta (BBA) - Protein Structure, 1972
Abstract Glycineamide reacts quantitatively with the four carboxyl groups of glucagon in the presence of 1-ethyl-3-(3-dimethylaminopropylcarbodiimide) and 7 M guanidine hydrochloride. The product of this reaction has greatly enhanced solubility in water but still aggregates as shown by the concentration dependence of the circular dichroism and ...
R M, Epand, R F, Epand
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Modification of carboxyl groups of transferrin

Biochimica et Biophysica Acta (BBA) - Protein Structure, 1970
Abstract Carboxyl groups of transferrin were coupled with glycine methyl ester using a water-soluble carbodiimide. The iron-binding activity of the modified protein did not change until some 16 carboxyl groups had been modified. The activity then fell in proportion to the number of groups modified until no iron binding was seen with 62 carboxyl ...
A, Bezkorovainy, D, Grohlich
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Modification of Carboxyl Groups in Pepsin

European Journal of Biochemistry, 1973
The chemical modification of pepsin carboxyl groups using N‐(2,4‐dinitrophenyl)‐hexamethylenediamine or compound (I) in the presence of a water‐soluble 1‐cyclohexyl‐3‐[2′‐(N‐methylmorpholino)‐ethyl]‐carbodiimide p‐toluenesulphonate or compound II at pH 5.5 resulted in the incorporation of one molecule of I per molecule of pepsin with a concomitant drop
L F, Matyash   +2 more
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Luminescence of the Carboxyl Group

The Journal of Chemical Physics, 1971
A luminescence is observed from formic and acetic acids, their salts and esters. The yield of this luminescence is low (Φ < 0.01). On the basis of much circumstantial evidence, we assign this emission as a Γπ,π*3 → 1Γ1 process located on the carboxyl group.
L. W. Johnson   +2 more
openaire   +1 more source

Amidation of Carboxyl Groups

ChemInform, 1996
AbstractFor Abstract see ChemInform Abstract in Full Text.
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