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Comparative time-course study of aminoacyl- and dipeptidyl-resin hydrolysis
(1997-12-01)
The classic hydrolysis procedure for quantification of resin-bound aminoacyl and peptidyl groups with 12 N HCl: propionic acid was recvaluated by studying the influence of the nature of the resin and the resin-bound group. ...
Mecanismos de ação e controle da digestão de proteínas e peptídios em humanos
(1999-12-01)
This review aims to report the major control mechanisms of protein and peptides digestion of special interest in human patients. Regarding protein assimilation its digestive process begins at the stomach with some not so ...
Differences in substrate and inhibitor sequence specificity of human, mouse and rat tissue kallikreins
(Portland Press, 2004-06-15)
The kininogenase activities of mouse (mK1), rat (rK1) and human (hK1) tissue kallikrems were assayed with the bradykinin-containing synthetic peptides NH2-MTEMARRPPGFSPFRSVTVQ-NH2 (where Abz stands for o-aminobenzoyl) and ...
Human plasma kallikrein. Preliminary studies on hydrolysis of proteins and peptides
(Birkhauser Verlag Ag, 1978-01-01)
Acid-activated human plasma kallikrein (HuPK) was purified from human Cohn fraction IV by affinity chromatography, using as ligand soybean trypsin inhibitor and aminobenzamidine. The purified enzyme does not inactivate ...
Cyclic, Linear, Cycloretro-Isomer, and Cycloretro-Inverso Peptides Derived from the C-Terminal Sequence of Bradykinin as Substrates or Inhibitors of Serine and Cysteine Proteases
(Springer, 2004-05-01)
We investigated the inhibition of trypsin, human tissue (hK1) and human plasma kallikrein (HuPK), papain, and cathepsin L, B, and X by synthetic cyclic, cycloretro-isomer, cycloretro-inverso, and linear peptides derived ...
Synthesis and hydrolysis by cysteine and serine proteases of short internally quenched fluorogenic peptides
(Academic Press Inc, 2001-06-01)
We developed sensitive substrates for cysteine proteases and specific substrates for serine proteases based on short internally quenched fluorescent peptides, Abz-F-R-X-EDDnp, where Abz (ortho-aminobenzoic acid) is the ...
Specificity of human tissue kallikrein towards substrates containing Phe-Phe pair of amino acids
(Portland Press, 1999-04-15)
We have explored in detail the determinants of specificity for the hydrolysis by human tissue kallikrein (hK(1)) of substrates containing the Phe-Phe amino acid pair, after which hK(1) cleaves kallistatin (human ...
Controlled hydrolysis of cheese whey proteins using trypsin and alpha-chymotrypsin
(Humana Press Inc, 2001-03-01)
This study examined the production of protein hydrolysates with controlled composition from cheese whey proteins. Cheese whey was characterized and several hydrolysis experiments were made using whey proteins and purified ...
Neprilysin carboxydipeptidase specificity studies and improvement in its detection with fluorescence energy transfer peptides
(Walter de Gruyter & Co, 2007-04-01)
We examined the substrate specificity of the carboxydipeptidase activity of neprilysin (NEP) using fluorescence resonance energy transfer (FRET) peptides containing ortho-aminobenzoyl (Abz) and 2,4-dinitrophenyl (Dnp) as ...
Partial purification and characterization of digestive trypsin-like proteases from the velvet bean caterpillar, Anticarsia gemmatalis
(Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 2018)