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Bahar T, Tuncel A. Concanavalin A attached poly(p-chloromethylstyrene) beads for glycoenzyme separation. J Appl Polym Sci 2004. [DOI: 10.1002/app.20157] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Breusegem SY, Clegg RM, Loontiens FG. Base-sequence specificity of Hoechst 33258 and DAPI binding to five (A/T)4 DNA sites with kinetic evidence for more than one high-affinity Hoechst 33258-AATT complex. J Mol Biol 2002; 315:1049-61. [PMID: 11827475 DOI: 10.1006/jmbi.2001.5301] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The binding of Hoechst 33258 and DAPI to five different (A/T)4 sequences in a stable DNA hairpin was studied exploiting the substantial increase in dye fluorescence upon binding. The two dyes have comparable affinities for the AATT site (e.g. association constant K(a)=5.5 x 10(8) M(-1) for DAPI), and their affinities decrease in the series AATT >> TAAT approximately equal to ATAT > TATA approximately equal to TTAA. The extreme values of K(a) differ by a factor of 200 for Hoechst 33258 but only 30 for DAPI. The binding kinetics of Hoechst 33258 were measured by stopped-flow under pseudo-first order conditions with an (A/T)4 site in excess. The lower-resolution experiments can be well represented by single exponential processes, corresponding to a single-step binding mechanism. The calculated association-rate parameters for the five (A/T)4 sites are similar (2.46 x 10(8) M(-1) s(-1) to 0.86 x 10(8) M(-1) s(-1)) and nearly diffusion-controlled, while the dissociation-rate parameters vary from 0.42 s(-1) to 96 s(-1). Thus the association constants are kinetically controlled and are close to their equilibrium-determined values. However, when obtained with increased signal-to-noise ratio, the kinetic traces for Hoechst 33258 binding at the AATT site reveal two components. The concentration dependencies of the two time constants and amplitudes are consistent with two different kinetically equivalent two-step models. In the first model, fast bimolecular binding is followed by an isomerization of the initial complex. In the second model, two single-step associations form two complexes that mutually exclude each other. For both models the four reaction-rate parameters are calculated. Finally, specific dissociation kinetics, using poly[d(A-5BrU)], show that the kinetics are even more complex than either two-step model. We correlate our results with the different binding orientations and locations of Hoechst 33258 in the DNA minor groove found in several structural studies in the literature.
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Affiliation(s)
- Sophia Y Breusegem
- Laboratory for Biochemistry Department of Biochemistry Physiology and Microbiology, Ghent University, Gent, B-9000, Belgium
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Dam TK, Brewer CF. Thermodynamic studies of lectin-carbohydrate interactions by isothermal titration calorimetry. Chem Rev 2002; 102:387-429. [PMID: 11841248 DOI: 10.1021/cr000401x] [Citation(s) in RCA: 381] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tarun K Dam
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, New York 10461, USA
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Loontiens FG. Slow dissociation of 4-methylumbelliferyl β-D-galactosyl-(1→3)-N
-acetyl β-D-galactosaminide from its complex with peanut agglutinin. FEBS Lett 2001. [DOI: 10.1016/0014-5793(83)81077-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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5
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Breusegem SY, Loontiens FG, Regenfuss P, Clegg RM. Kinetics of binding of Hoechst dyes to DNA studied by stopped-flow fluorescence techniques. Methods Enzymol 2001; 340:212-33. [PMID: 11494850 DOI: 10.1016/s0076-6879(01)40424-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- S Y Breusegem
- Laboratory for Fluorescence Dynamics, Department of Physics, University of Illinois, Urbana, Illinois 61801, USA
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6
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Van Tilbeurgh H, Loontiens FG, Engelborgs Y, Claeyssens M. Studies of the cellulolytic system of Trichoderma reesei QM 9414. Binding of small ligands to the 1,4-beta-glucan cellobiohydrolase II and influence of glucose on their affinity. EUROPEAN JOURNAL OF BIOCHEMISTRY 1989; 184:553-9. [PMID: 2806239 DOI: 10.1111/j.1432-1033.1989.tb15049.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Binding onto cellobiohydrolase II from Trichoderma reesei of glucose, cellobiose, cellotriose, derivatized and analogous compounds, is monitored by protein-difference-absorption spectroscopy and by titration of ligand fluorescence, either at equilibrium or by the stopped-flow technique. The data complete earlier results [van Tilbeurgh, H., Pettersson, L. G., Bhikhabhai, R., De Boeck, H. and Claeyssens, M. (1985) Eur. J. Biochem. 148, 329-334] indicating an extended active center, with putative subsites ABCD. Subsite A specifically complexes with beta-D-glucosides and D-glucose; at 25 degrees C the latter influences the concomitant binding of other ligands at neighbouring sites. For several ligands this cooperative effect for binding (at 0.33 M glucose and temperature range 4-37 degrees C) was characterized by a substantial increase of the enthalpic term (delta delta H = -35 kJ mol-1). Glucose (0.33 M) decreases the association and dissociation rate parameters of 4-methylumbelliferyl beta-D-cellobioside by one order of magnitude: k+ = (3.6 +/- 0.5) x 10(-5) M-1 s-1 versus (5.1 +/- 0.1) x 10(-6) M-1 s-1 (in the absence of glucose) and k- = (1.3 +/- 0.1) s-1 versus (14.0 +/- 0.3) s-1. As deduced from substrate-specificity studies and inhibition experiments, subsite B interacts with terminal non-reducing glucopyranosyl residues of oligomeric ligands and substrates, whereas catalytic (hydrolytic) cleavage occurs between C and D. Association constants 10-100 times higher than those for cellobiose or its glycosides were observed for D-glucopyranosyl-(1----4)-beta-D-xylopyranose and cellobionolactone derivatives, suggesting 'transition-state'-type binding for these ligands at subsite C. Although subsite D can accomodate a bulky chromophoric group (MeUmb) its preference for a glucosyl residue is reflected in the lower binding enthalpy of cellotriose (-34 kJ mol-1) as compared to cellobiose (-28.3 kJ mol-1) and MeUmb(Glc)2 (-11.6 kJ mol-1). This model indicates that oligomeric ligands (substrates) interact through cooperativity of their subunits at the extended binding site of cellobiohydrolase II.
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Affiliation(s)
- H Van Tilbeurgh
- Laboratory for Biochemistry, Rijksuniversiteit Gent, Belgium
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7
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Brewer CF, Bhattacharyya L. Concanavalin A interactions with asparagine-linked glycopeptides. The mechanisms of binding of oligomannose, bisected hybrid, and complex type carbohydrates. Glycoconj J 1988. [DOI: 10.1007/bf01061205] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Regenfuss P, Clegg RM. Diffusion-controlled association of a dye, 1-anilinonaphthalene-8-sulfonic acid, to a protein, bovine serum albumin, using a fast-flow microsecond mixer and stopped-flow. Biophys Chem 1987; 26:83-9. [PMID: 3593882 DOI: 10.1016/0301-4622(87)80010-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The kinetic constants of the two fastest reactions of 1-anilinonaphthalene-8-sulfonic acid binding to bovine serum albumin are derived from the results of experiments with a microsecond fast-flow mixing technique and a stopped-flow method. The experiments are interpreted in terms of rapid bimolecular diffusion-controlled associations to two independent regions on the protein surface; this reaction mechanism contrasts with previous kinetic studies of ligand binding to bovine serum albumin which have not demonstrated the fastest kinetic processes.
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Bhattacharyya L, Haraldsson M, Brewer CF. Concanavalin A interactions with asparagine-linked glycopeptides. Bivalency of bisected complex type oligosaccharides. J Biol Chem 1987. [DOI: 10.1016/s0021-9258(19)75785-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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10
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Bhattacharyya L, Ceccarini C, Lorenzoni P, Brewer CF. Concanavalin A interactions with asparagine-linked glycopeptides. Bivalency of high mannose and bisected hybrid type glycopeptides. J Biol Chem 1987. [DOI: 10.1016/s0021-9258(19)75784-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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11
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Brewer CF, Bhattacharyya L. Specificity of concanavalin A binding to asparagine-linked glycopeptides. A nuclear magnetic relaxation dispersion study. J Biol Chem 1986. [DOI: 10.1016/s0021-9258(17)38391-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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12
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Brewer F, Bhattacharyya L, Brown RD, Koenig SH. Interactions of concanavalin A with a trimannosyl oligosaccharide fragment of complex and high mannose type glycopeptides. Biochem Biophys Res Commun 1985; 127:1066-71. [PMID: 3838666 DOI: 10.1016/s0006-291x(85)80053-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
It has previously been reported that the binding interactions of concanavalin A with a purified high mannose type glycopeptide from ovalbumin differs from that with simple mono- and oligosaccharides (Brewer, C.F. (1979) Biochem. Biophys. Res. Commun. 90, 117-122). We now report studies with a synthetic analog of complex type glycopeptides, and a synthetic trimannosyl oligosaccharide fragment that is common to both complex and high mannose type glycopeptides. We find that both synthetic oligosacchardes undergo similar interactions with concanavalin A which mimic the effects of binding corresponding larger glycopeptides. Furthermore, the relative affinity of the trimannosyl oligosaccharide is 130-fold greater than the binding of methyl-alpha-D-mannopyranoside. The results indicate that the trimannosyl oligosaccharide is a unique structural element recognized by the lectin.
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Loontiens FG, Dhollander G. Temperature-induced ultraviolet difference absorption spectrometry for determination of enthalpy changes. Binding of 4-methylumbelliferyl glycosides to four lectins. FEBS Lett 1984; 175:249-54. [PMID: 6479344 DOI: 10.1016/0014-5793(84)80745-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Raising the temperature in a single mixture of a lectin and a chromophoric glycoside allows determination of the binding enthalpy. This is made possible by continuously monitoring the displacement of the complex from its equilibrium concentration with a sensitive difference absorption spectrophotometer. The method is illustrated with the following lectins: concanavalin A, soybean agglutinin, peanut agglutinin and Erythrina cristagalli agglutinin. The ligands are 4-methylumbelliferyl glycosides. The binding enthalpies found range from -60 kJ X mol-1 for the Gal beta 1----3GalNAc-beta glycoside and peanut agglutinin to -30 kJ X mol-1 for a monosaccharide glycoside and the other lectins.
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Salahuddin A, Begum R, Averill BK. Salt-induced inhibition of the precipitin reaction of concanavalin A with polysaccharides and glycoprotein. Biochem J 1984; 220:639-42. [PMID: 6205651 PMCID: PMC1153679 DOI: 10.1042/bj2200639] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The time course of the precipitin reactions of concanavalin A with glycogen, dextran and ovalbumin was investigated by a light-scattering method near 30 degrees C in 10 mM-Tris/HCl buffer, pH 7.4, containing neutral salts, i.e. NaCl, KCl, NaBr, KI and NaClO4. With 0.8 microM-lectin and 0.36 mg of glycogen/ml, the half-life, t 1/2, of the precipitin reaction was independent of salt concentration between 0.1 M and 1.5 M, and was the same (175s) in the presence of NaCl, KCl, NaBr and KI but was significantly (27%) higher in NaClO4. In contrast, the five salts caused significant to marked enhancement in t 1/2 for the reactions of concanavalin A with dextran and ovalbumin. Likewise, whereas the turbidity produced in 1 h as a result of lectin-glycogen precipitation remained unchanged, those measured for the binding of dextran and ovalbumin were decreased in the presence of three salts. The increase in t 1/2 and decrease in turbidity were found to be higher with NaClO4, followed by KI; NaBr produced moderate and NaCl (or KCl) small but generally significant inhibition of the precipitin reactions with dextran and ovalbumin. The results showed that the lectin-ligand precipitin reactions involve salt-sensitive polar interactions that are less pronounced with compactly folded ligands such as glycogen.
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Roberts DD, Goldstein IJ. Effect of carbohydrate and metal ion binding on the reactivity of the essential thiol groups of lima bean lectin. J Biol Chem 1984. [DOI: 10.1016/s0021-9258(17)43542-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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16
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Some physicochemical aspects of oligosaccharide binding to concanavalin A and wheat germ agglutinin. J Biosci 1983. [DOI: 10.1007/bf02702981] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Anomalous temperature-dependence of the specific interaction of concanavalin A with a multivalent ligand-dextran. ACTA ACUST UNITED AC 1983; 746:65-71. [DOI: 10.1016/0167-4838(83)90011-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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Neurohr KJ, Bundle DR, Young NM, Mantsch HH. Binding of disaccharides by peanut agglutinin as studied by ultraviolet difference spectroscopy. EUROPEAN JOURNAL OF BIOCHEMISTRY 1982; 123:305-10. [PMID: 7075591 DOI: 10.1111/j.1432-1033.1982.tb19768.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The binding of the disaccharides methyl beta-D-lactoside and 2-acetamido-2-deoxy-3-O-(beta-D-galactopyranosyl)-beta-D-galactopyranose [beta-D-Gal-(l leads to 3)-D-GalNAc] to peanut agglutinin was studied by ultraviolet difference spectroscopy. The magnitude of the difference spectra varied with the concentration of the carbohydrates; association constants and thermodynamic parameters were determined from titration experiments at different temperatures. The enthalpy and entropy changes for binding of methyl beta-D-lactoside were found to be delta H degree = -65 +/- 4 kJ mol-1, delta S degree = -156 +/- 14 J mol-1 K-1. For beta-D-Gal-(1 leads to 3)-D-GalNAc the observed thermodynamic parameters were delta H degree = -78 +/- 5 kJ mol-1,, delta S degree = -177 +/- 16 J mol-1 K-1. For both disaccharides, the enthalpy change upon binding to the lectin is much larger than found for the binding site on peanut agglutinin. The observed parameters are compared with those found for the binding of monosaccharides and oligosaccharides to other lectins and to lysozyme. Molecular models of the minimum energy conformers of beta-D-Gal(1 leads to 3)-D-GalNAc and methyl beta-D-lactoside are used to interpret the interaction of these, and structurally related ligands, with the peanut agglutinin binding site.
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Neurohr KJ, Mantsch HH, Young NM, Bundle DR. Carbon-13 nuclear magnetic resonance studies on lectin-carbohydrate interactions: binding of specifically carbon-13-labeled methyl beta-D-lactoside to peanut agglutinin. Biochemistry 1982; 21:498-503. [PMID: 7066302 DOI: 10.1021/bi00532a013] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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20
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Unique effects of glycopeptides on the circular dichroism of concanavalin A, peanut agglutinin and the pea lectin. ACTA ACUST UNITED AC 1982. [DOI: 10.1016/0167-4838(82)90323-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Williams TJ, Homer LD, Shafer JA, Goldstein IJ, Garegg PJ, Hultberg H, Iversen T, Johansson R. Characterization of the extended carbohydrate binding site of concanavalin A: specificity for interaction with the nonreducing termini of alpha-(1 leads to 2)-linked disaccharides. Arch Biochem Biophys 1981; 209:555-64. [PMID: 6765905 DOI: 10.1016/0003-9861(81)90313-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Neurohr KJ, Young NM, Smith IC, Mantsch HH. Kinetics of binding of methyl alpha- and beta-D-galactopyranoside to peanut agglutinin: a carbon-13 nuclear magnetic resonance study. Biochemistry 1981; 20:3499-504. [PMID: 7260053 DOI: 10.1021/bi00515a030] [Citation(s) in RCA: 36] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The binding kinetics of methyl alpha- and methyl beta-D-galactopyranoside to the anti-T lectin from peanuts were studied by 13C NMR, employing methyl galactopyranosides specifically enriched in 13C at C-1. Association and dissociation rate constants, as well as their activation parameters, are reported. The association rate constants, 4.6 X 10(4) M-1 s-1 for the alpha-galactopyranoside and 3.6 X 10(4) M-1 s-1 for the beta-galactopyranoside, are several orders of magnitude below those expected for a diffusion-controlled process. For both anomers, the association rate constant was temperature independent, implying that the association process occurs without a significant activation enthalpy. However, a considerable association activation entropy was found for both ligands. The dissociation rate constants were in the range of 9-46 s-1 within a temperature range of 5-35 degrees C for the alpha-galactopyranoside, and in the range of 9-39 s-1 within a temperature range of 5-25 degrees C for the beta-galactopyranoside. A considerable dissociation activation enthalpy of ca. 10 kcal mol-1 was found for both anomers. A two-step binding model, consistent with the present NMR data and with previous UV and CD spectroscopic data, is presented.
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Van Landschoot A, Loontiens FG, De Bruyne CK. Binding of manno-oligosaccharides to concanavalin A. Substitution titration with a fluorescent-indicator ligand. EUROPEAN JOURNAL OF BIOCHEMISTRY 1980; 103:307-12. [PMID: 6892694 DOI: 10.1111/j.1432-1033.1980.tb04316.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The association constants for binding of methyl alpha-D-mannopyranoside (I), mannobiose (II) and mannotriose (III) to concanavalin A were determined in the temperature range 285-313 K by a substitution titration, using 4-methylumbelliferyl alpha-D-mannopyranoside as a carbohydrate-specific and fluorescent indicator. All binding equilibria are simple, but establish extremely slowly with II and III. At 298.3 K, K increases moderately from I to III: (6.4 +/- 0.5) x 10(3), (1.2 +/- 0.1) x 10(4) and (1.10 +/- 0.05) x 10(5) M-1. For binding of I, II and III, the - delta H degree values are constant (36 +/- 2 kJ mol-1) and equal to the average value (36.1 +/- 0.6 kJ mol-1) obtained for the three corresponding 4-methylumbelliferyl alpha-D-manno-oligosaccharides [Van Landschoot, A., Loontiens, F. G., and De Bruyne, C. K (1978) Eur. J. Biochem. 83, 277-285]. The data are interpreted as arising from specific binding to a single mannopyranosyl residue in (alpha 1 leads to 2)-linked manno-oligosaccharides.
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