Camphorquinone-10-sulfonic acid and derivatives: convenient reagents for reversible modification of arginine residues

Journal Article · Fri Feb 01 00:00:00 EST 1980 · Proc. Natl. Acad. Sci. U.S.A.; (United States)

DOI:https://doi.org/10.1073/pnas.77.2.895· OSTI ID:5374565

Pande, C S; Pelzig, M; Glass, J D

Camphorquinone-10-sulfonic acid hydrate was prepared by the action of selenous acid on camphor-10-sulfonic acid. Camphorquinone-10-sulfonylnorleucine was prepared either from the sulfonic acid via the sulfonyl chloride or by selenous acid oxidation of camphor-10-sulfonylnorleucine. These reagents are useful for specific, reversible modification of the guanidino groups of arginine residues. Camphorquinonsulfonic acid is a crystalline water-soluble reagent that is especially suitable for use with small arginine-containing molecules, because the sulfonic acid group of the reagent is a convenient handle for analytical and preparative separation of products. Camphorquinonesulfonylnorleucine is more useful for work with large polypeptides and proteins, because hydrolysates of modified proteins may be analyzed for norleucine to determine the extent of arginine modification. The adducts of the camphorquinone derivatives with the guanidino group are stable to 0.5 M hydroxylamine solutions at pH 7, the recommended conditions for cleavage of the corresponding cyclohexanedione adducts. At pH 8-9 the adducts of the camphorquinone derivatives with the guanidino group are cleaved by o-phenylenediamine. The modification and regeneration of arginine, of the dipeptide arginylaspartic acid, of ribonuclease S-peptide, and of soybean trypsin inhibitor are presented as demonstrations of the use of the reagents.The use of camphorquinonesulfonyl chloride to prepare polymers containing arginine-specific ligands is discussed.

• Research Organization: Mount Sinai Medical and Graduate Schools, New York, NY
• OSTI ID: 5374565
• Journal Information: Proc. Natl. Acad. Sci. U.S.A.; (United States), Vol. 77:2
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
ARGININE
BIOCHEMICAL REACTION KINETICS
SULFONIC ACID ESTERS
BIOLOGICAL EFFECTS
CAMPHOR
CHEMICAL PREPARATION
GUANIDINES
MOLECULAR STRUCTURE
QUINONES
AMINO ACIDS
AROMATICS
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACIDS
ESTERS
KETONES
KINETICS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
REACTION KINETICS
SYNTHESIS
TERPENES
550201* - Biochemistry- Tracer Techniques