W-Band ENDOR Investigation of the Manganese-Binding Site of Concanavalin A:  Determination of Proton Hyperfine Couplings and Their Signs

2000 ◽  
Vol 122 (14) ◽  
pp. 3488-3494 ◽  
Author(s):  
Palanichamy Manikandan ◽  
Raanan Carmieli ◽  
Tania Shane ◽  
A. Joseph Kalb (Gilbo ◽  
Daniella Goldfarb
1996 ◽  
Vol 76 (01) ◽  
pp. 005-008 ◽  
Author(s):  
Jean Claude Lormeau ◽  
Jean Pascal Herault ◽  
Jean Marc Herbert

SummaryWe examined the effect of the synthetic pentasaccharide representing the minimal binding site of heparin to antithrombin on the antithrombin-mediated inactivation of factor Vila bound to tissue factor. This effect was compared to the effect of unfractionated heparin. Using purified recombinant human coagulation factors and either a clotting or an amidolytic assay for the determination of the residual activity of factor Vila, we showed that the pentasaccharide was an efficient antithrombin-dependent inhibitor of the coagulant activity of tissue factor-factor Vila complex. In our experimental conditions, assuming a mean MW of 14,000 for heparin, the molar pseudo-first order rate constants for ATIII-mediated FVIIa inhibition by ATIII-binding heparin and by the synthetic pentasaccharide were found to be similar with respective values of 104,000 ± 10,500 min-1 and 112,000 ± 12,000 min-1 (mean ± s.e.m., n = 3)


1998 ◽  
Vol 63 (3) ◽  
pp. 434-440 ◽  
Author(s):  
Irena Hulová ◽  
Jana Barthová ◽  
Helena Ryšlavá ◽  
Václav Kašička

Glycoproteins that have affinity to Concanavalin A were isolated from the acetone-dried pituitaries of common carp (Cyprinus carpio L.). Two fractions of glycoproteins were separated using gel chromatography on Superdex 75HR. The fraction with lower molecular weight (30 000) corresponding to the carp gonadotropin cGtH II was composed of two subunits as determined using SDS-PAGE. This protein fraction was further divided into four components using reversed-phase HPLC. Two fractions were pure α and β subunits of cGtH II as follows from immunodetection and from determination of N-terminal amino acid sequences. The other two were a mixture of α and β subunits as was also revealed by N-terminal analysis. Capillary electrophoresis was also used for characterization of isolated glycoproteins.


The Analyst ◽  
2021 ◽  
Author(s):  
Alireza Abi ◽  
Afsaneh Safavi

Hexaammineruthenium(iii) metal complex can bind to surface-tethered DNA strands in excess of what is required for the compensation of the DNA charges.


1978 ◽  
Vol 253 (10) ◽  
pp. 3730-3735
Author(s):  
T.L. Poulos ◽  
S.T. Freer ◽  
R.A. Alden ◽  
N.H. Xuong ◽  
S.L. Edwards ◽  
...  

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