Detail of "3396-99-4"

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A spectrophotometric study of the carbohydrate binding site of peanut lectin

A spectrophotometric study of the carbohydrate binding site of peanut lectin. Ohanessian, Jacqueline; Caron, Michel (Lab. Biomol. Struct. Chem., UER Biomed. 3396-99-4 and 39392-65-9 are also occured in this study., Bobigny 93012, Fr.). Lectins: Biol., Biochem., Clin. Biochem., 3, 623-8 (English) 1983. CODEN: LBBBD5. ISSN: 0723-8878. DOCUMENT TYPE: Journal CA Section: 15 (Immunochemistry) Section cross-reference(s): 9 The difference spectra spectrophotometric method (spectra recorded between 260 and 300 nm, detd. at 10°) was used to det. the binding consts. for specific binding of sugars (16 mono-and oligosaccharides) to peanut lectin. For C(6), an extracyclic chain is needed for lectin interaction, and orientation of the -OH group on C(6) is essential; substitution of the hydroxymethyl group decreases the strength of the assocn. A free axial -OH on C(4) is needed for binding. A C(2) equatorial hydroxyl group is not essential for interaction, but the axial position of this group decreases the binding. Methylation of C(1) favors assocn.; there seems to be a slight preference for the a-anomer configuration. For the glycosidic bonds, compds. with the b(1?4) linkage bind more strongly to the lectin than those with the a(1?6) linkage. Overall, these results show that the sequence C(4)-O(4), C(5), C(6)-O(6) of the galactopyranosyl ring is involved in the interactions in the carbohydrate binding site of peanut lectin as postulated previously (Lotan, R., et al, 1975), and that for di- and oligosaccharides, it appears that the configuration of C(1), the nature of the osidic bond and of the 2nd residue may influence the strength of the assocn. .

Structural analysis on the constituents of Ligustrum species

Structural analysis on the constituents of Ligustrum species.Some chemicals with cas registry numbers like 21637-25-2 and 3396-99-4 are also used. XVI. The components from the leaves of Ligustrum ovalifolium Hassk. 2. Nagaoka, Ichiro; Kikuchi, Masao (Tohoku Coll. Pharm., Sendai 981, Japan). Annu. Rep. Tohoku Coll. Pharm., 37, 51-6 (Japanese) 1990. CODEN: TYKNAQ. ISSN: 0495-7342. DOCUMENT TYPE: Journal CA Section: 11 (Plant Biochemistry) From the MeOH ext. of fresh leaves of L. ovalifolium, ibotalactone B, 10-hydroxyligustroside, oleuropein, acteoside, caffeoyl b-D-glucoside, (-)-olivil-4''-O-b-D-glucoside, syringin, isoquercitrin, rutin, and Me a-D-galactoside were identified spectroscopically. .