Divakar, S (1989) Determination of distances of sugar protons from Mn2+ in concanavalin A. In: Indian J Biochem Biophys, 26 (3). pp. 190-195.
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1H NMR spin-lattice relaxation time (T1) measurements have been carried out with various sugars, viz. methyl alpha-D-glucopyranoside (alpha-MeGluP), methyl beta-D-lucopyranoside (beta-MeGluP), methyl alpha--annopyranoside (alpha-MeManP), maltose (4-O-alpha-D-glucopyranosyl--glucose), nigerose (3-O-alpha-D-glucopyranosyl-D-glucose), p-nitrophenyl alpha-maltoside (PNP-alpha-maltoside) and p-nitrophenyl beta-maltoside (PNP-beta-maltoside) to determine the distances of sugar protons from Mn2+ in concanavalin A (Con A). With a rotational correlation time of 1.58 x 10(-10) s determined, distances were calculated using Solomon-Bloembergen equation. The data obtained indicated differences in disposition of different groups in the binding site of Con A. An average value of about 10 A was obtained for the distances of sugar protons from Mn2+ in Con A. In the case of mono and disaccharides, the non-reducing end sugar unit was found to be closer to Mn2+ than the reducing end one.
| Item Type: | Journal Article |
|---|---|
| Publication: | Indian J Biochem Biophys |
| Publisher: | National Institute of Science Communication and Information Resources. |
| Additional Information: | Copyright of this article belongs to National Institute of Science Communication and Information Resources. |
| Department/Centre: | Division of Biological Sciences > Molecular Biophysics Unit |
| Date Deposited: | 25 Aug 2010 05:26 |
| Last Modified: | 25 Aug 2010 05:26 |
| URI: | http://eprints.iisc.ac.in/id/eprint/31364 |
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