A protein-based pentavalent inhibitor of the cholera toxin B-subunit.
A protein-based pentavalent inhibitor of the cholera toxin B-subunit.
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DOI:
10.1002/anie.201404397
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发表时间:
2014-08-04
影响因子:
16.6
通讯作者:
Turnbull, W. Bruce
中科院分区:
文献类型:
--
作者:
Branson, Thomas R.;McAllister, Tom E.;Garcia-Hartjes, Jaime;Fascione, Martin A.;Ross, James F.;Warriner, Stuart L.;Wennekes, Tom;Zuilhof, Han;Turnbull, W. Bruce
Protein toxins produced by bacteria are the cause of many life-threatening diarrheal diseases. Many of these toxins, including cholera toxin (CT), enter the cell by first binding to glycolipids in the cell membrane. Inhibiting these multivalent protein/carbohydrate interactions would prevent the toxin from entering cells and causing diarrhea. Here we demonstrate that the site-specific modification of a protein scaffold, which is perfectly matched in both size and valency to the target toxin, provides a convenient route to an effective multivalent inhibitor. The resulting pentavalent neoglycoprotein displays an inhibition potency (IC50) of 104 pm for the CT B-subunit (CTB), which is the most potent pentavalent inhibitor for this target reported thus far. Complexation of the inhibitor and CTB resulted in a protein heterodimer. This inhibition strategy can potentially be applied to many multivalent receptors and also opens up new possibilities for protein assembly strategies.
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影响因子:
4.7
作者:
Chen, JH;Zeng, WG;Rose, K
通讯作者:
Rose, K
DOI:
10.1038/nbt1293-1574
发表时间:
1993-12-01
期刊:
BIO-TECHNOLOGY
影响因子:
--
作者:
LEBENS, M;JOHANSSON, S;HOLMGREN, J
通讯作者:
HOLMGREN, J
影响因子:
3.2
作者:
Pukin, Aliaksei V.;Branderhorst, Hilbert M.;Pieters, Roland J.
通讯作者:
Pieters, Roland J.
影响因子:
64.8
作者:
Kitov, PI;Sadowska, JM;Bundle, DR
通讯作者:
Bundle, DR
影响因子:
3.2
作者:
Mattarella, Martin;Garcia-Hartjes, Jaime;Siegel, Jay S.
通讯作者:
Siegel, Jay S.