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Amino acids and peptides. XXVIII. Preparation of poly(ethylene glycol) hybrids of Gln-Val-Val-Ala-Gly analogs and their inhibitory effect on papain. 1996

K Kawasaki, and S Inoue, and Y Okada, and S Iguchi, and H Okamoto
Faculty of Pharmaceutical Sciences, Kobe Gakuin University, Japan.

Gln-Val-Val-Ala-Gly is a sequence which is common in cysteine protease inhibitors. Poly(ethylene glycol) hybrids of Gln-Val-Val-Ala-Gly analogs were prepared by the solid phase method by fluorenylmethyloxycarbonyl chemistry. The hybrid formation of Gln-Val-Val-Ala-Gly resulted in improvement of the solubility and also in enhancement of the inhibitory effect of the peptide on papain. In addition, the hybrid formation of Gln-Val-Val-Ala-Gly analogs resulted in the enhancement of the inhibitory effect of the peptide analogs.

UI MeSH Term Description Entries
D009842 Oligopeptides Peptides composed of between two and twelve amino acids. Oligopeptide
D010206 Papain A proteolytic enzyme obtained from Carica papaya. It is also the name used for a purified mixture of papain and CHYMOPAPAIN that is used as a topical enzymatic debriding agent. EC 3.4.22.2. Tromasin
D011092 Polyethylene Glycols Polymers of ETHYLENE OXIDE and water, and their ethers. They vary in consistency from liquid to solid depending on the molecular weight indicated by a number following the name. They are used as SURFACTANTS, dispersing agents, solvents, ointment and suppository bases, vehicles, and tablet excipients. Some specific groups are NONOXYNOLS, OCTOXYNOLS, and POLOXAMERS. Macrogols,Polyoxyethylenes,Carbowax,Macrogol,Polyethylene Glycol,Polyethylene Oxide,Polyethyleneoxide,Polyglycol,Glycol, Polyethylene,Glycols, Polyethylene,Oxide, Polyethylene,Oxides, Polyethylene,Polyethylene Oxides,Polyethyleneoxides,Polyglycols,Polyoxyethylene
D013329 Structure-Activity Relationship The relationship between the chemical structure of a compound and its biological or pharmacological activity. Compounds are often classed together because they have structural characteristics in common including shape, size, stereochemical arrangement, and distribution of functional groups. Relationship, Structure-Activity,Relationships, Structure-Activity,Structure Activity Relationship,Structure-Activity Relationships

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