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- W2145403229 abstract "Herpes simplex virus type 2 (HSV-2) interacts with cell surface glycosaminoglycans during virus attachment. Glycoprotein B of HSV-2 can potentially mediate the interaction between the virion and cell surface glycosaminoglycans. To determine the specificity, kinetics, and affinity of these interactions, we used plasmon resonance-based biosensor technology to measure HSV-2 glycoprotein binding to glycosaminoglycans in real time. The recombinant soluble ectodomain of HSV-2 gB (gB2) but not the soluble ectodomain of HSV-2 gD bound readily to biosensor surfaces coated with heparin. The affinity constants (Kds) were determined for gB2 (Kd = 7.7 x 10(-7) M) and for gB2 deltaTM (Kd = 9.9 x 10(-7) M), a recombinant soluble form of HSV-2 gB in which only its transmembrane domain has been deleted. gB2 binding to the heparin surface was competitively inhibited by low concentrations of heparin (50% effective dose [ED50] = 0.08 microg/ml). Heparan sulfate and dermatan sulfate glycosaminoglycans have each been suggested as cell surface receptors for HSV. Our biosensor analyses showed that both heparan sulfate and dermatan sulfate inhibited gB2 binding (ED50 = 1 to 5 microg/ml), indicating that gB2 interacts with both heparin-like and dermatan sulfate glycosaminoglycans. Chondroitin sulfate A, in contrast, inhibited gB2 binding to heparin only at high levels (ED50 = 65 microg/ml). The affinity and specificity of gB2 binding to glycosaminoglycans demonstrated in these studies support its role in the initial binding of HSV-2 to cells bearing heparan sulfate or dermatan sulfate glycosaminoglycans." @default.
- W2145403229 created "2016-06-24" @default.
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- W2145403229 date "1997-02-01" @default.
- W2145403229 modified "2023-10-02" @default.
- W2145403229 title "Specificity and affinity of binding of herpes simplex virus type 2 glycoprotein B to glycosaminoglycans" @default.
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- W2145403229 doi "https://doi.org/10.1128/jvi.71.2.1375-1380.1997" @default.
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