Specificity of metal ion interaction with concanavalin A

Biochemistry ◽  
1973 ◽  
Vol 12 (10) ◽  
pp. 1914-1917 ◽  
Author(s):  
Menahem Shoham ◽  
A. Joseph Kalb ◽  
Israel Pecht
Keyword(s):  
Concanavalin A ◽  
Metal Ion

Saccharide binding to transition metal ion free concanavalin A

Biochemistry ◽  
1978 ◽  
Vol 17 (21) ◽  
pp. 4425-4430 ◽  
Author(s):  
Douglas J. Christie ◽  
Gerald M. Alter ◽  
James A. Magnuson
Keyword(s):  
Transition Metal ◽  
Concanavalin A ◽  
Metal Ion ◽  
Transition Metal Ion ◽  
Saccharide Binding

Sugar binding properties of various metal ion induced conformations in concanavalin A

Biochemistry ◽  
1978 ◽  
Vol 17 (11) ◽  
pp. 2169-2173 ◽  
Author(s):  
A. D. Sherry ◽  
A. E. Buck ◽  
C. A. Peterson
Keyword(s):  
Concanavalin A ◽  
Metal Ion ◽  
Binding Properties ◽  
Sugar Binding

Magnetic Resonance Studies of Concanavalin A: Conformational Changes Induced by Ca2+ and α-Methyl-D-mannopyranoside

1975 ◽  
Vol 53 (3) ◽  
pp. 371-379 ◽  
Author(s):  
Brian H. Barber ◽  
Jeremy P. Carver
Keyword(s):  
Magnetic Resonance ◽  
Concanavalin A ◽  
Metal Ion ◽  
Proton Magnetic Resonance ◽  
Structural Features ◽  
Proton Relaxation ◽  
Resonance Spectroscopy ◽  
Con A ◽  
Proton Relaxation Enhancement ◽  
Solvent Proton

Three independent solution spectroscopic techniques (solvent proton relaxation enhancement, circular dichroism, and high resolution 220 MHz proton magnetic resonance spectroscopy) have been utilized to demonstrate metal ion- and monosaccharide inhibitor-induced structural perturbations for the dimeric form of the plant lectin concanavalin A (Con A). The results indicate that (i) the occupation of the transition metal ion site S1 by Mn2+ or Zn2+ does not detectably perturb the demetallized protein conformation, (ii) the binding of Ca2+ to the Con A – Mn2+ or Con A – Zn2+ complexes perturbs the protein structure in the vicinity of the S1 site as well as at points remote from the S1–S2 double ion site, and (iii) the binding of the monosaccharide inhibitor α-methyl-D-mannopyranoside to the fully metallized Con A complex also significantly perturbs the structural features of the protein.A detailed radio frequency dependence analysis of the Ca2+ effect on the solvent proton relaxation enhancement properties of the Con A – Mn2+ complex indicates that the considerable reduction in the observed enhancement upon Ca2+ binding principally results from an approximate 120-fold decrease in the single Mn2+ water of hydration exchange rate. The 220 MHz proton magnetic resonance spectra for Con A indicate that this form of spectroscopy is the most useful of those utilized in detailing the solution structural features of this lectin, and a tentative assignment for the C-2-H proton of histidine residue 24 (the S1 site ligand) has been proposed.

The effect of metal ion homogeneity on the diffraction limit of orthorhombic (I222) crystals of concanavalin A

1988 ◽  
Vol 88 (4) ◽  
pp. 537-540 ◽  
Author(s):  
A.J. Kalb (Gilboa) ◽  
J. Yariv ◽  
J.R. Helliwell ◽  
M.Z. Papiz
Keyword(s):  
Concanavalin A ◽  
Metal Ion ◽  
Diffraction Limit

Metal ion binding to concanavalin A

1983 ◽  
Vol 5 (S1) ◽  
pp. 9-17 ◽  
Author(s):  
J. A. Magnuson ◽  
G. M. Alter ◽  
D. M. Appel ◽  
D. J. Christie ◽  
G. R. Munske ◽  
...  
Keyword(s):  
Concanavalin A ◽  
Metal Ion ◽  
Ion Binding ◽  
Metal Ion Binding

Role of second metal ion in establishing active conformations of concanavalin A

Biochemistry ◽  
1989 ◽  
Vol 28 (8) ◽  
pp. 3197-3204 ◽  
Author(s):  
Annamma Sadhu ◽  
James A. Magnuson
Keyword(s):  
Concanavalin A ◽  
Metal Ion

Effect of metal ion substitutions in concanavalin A on the binding of carbohydrates and on thermal stability

1998 ◽  
Vol 70 (2) ◽  
pp. 71-82 ◽  
Author(s):  
Julie N. Sanders ◽  
Sarah A. Chenoweth ◽  
Frederick P. Schwarz
Keyword(s):  
Thermal Stability ◽  
Concanavalin A ◽  
Metal Ion
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