Intermedilysin-Receptor Interactions during Assembly of the Pore Complex
Intermedilysin-Receptor Interactions during Assembly of the Pore Complex
复制标题
孔复合物组装过程中中间素-受体的相互作用
DOI:
--
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发表时间:
2009
影响因子:
4.8
通讯作者:
Eileen M. Hotze
中科院分区:
文献类型:
--
作者:
Stephanie Lachapelle;R. Tweten;Eileen M. Hotze
Intermedilysin (ILY) is an unusual member of the family of cholesterol-dependent cytolysins because it binds to human CD59 (hCD59) rather than directly to cholesterol-rich membranes. Binding of ILY to hCD59 initiates a series of conformational changes within the toxin that result in the conversion of the soluble monomer into an oligomeric membrane-embedded pore complex. In this study the association of ILY with its membrane receptor has been examined throughout the assembly and formation of the pore complex. Using ILY mutants trapped at various stages of pore assembly, we show ILY remains engaged with hCD59 throughout the assembly of the prepore oligomer, but it disengages from the receptor upon the conversion to the pore complex. We further show that the assembly intermediates increase the sensitivity of the host cell to lysis by its complement membrane attack complex, apparently by blocking the hCD59-binding site for complement proteins C8α and C9.
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DOI:
10.1016/s0021-9258(18)98856-3
发表时间:
1991-07
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
J. Zhao;S. Rollins;S. Maher;A. Bothwell;P. Sims
通讯作者:
J. Zhao;S. Rollins;S. Maher;A. Bothwell;P. Sims
影响因子:
3.6
作者:
Iyore Otabor;S. Tyagi;F. Beurskens;I. Ghiran;P. Schwab;A. Nicholson‐Weller;L. Klickstein
通讯作者:
Iyore Otabor;S. Tyagi;F. Beurskens;I. Ghiran;P. Schwab;A. Nicholson‐Weller;L. Klickstein
影响因子:
20.3
作者:
Hamilton,KK;Ji,Z;Rollins,S;Stewart,BH;Sims,PJ
通讯作者:
Sims,PJ
DOI:
10.1073/pnas.0403229101
发表时间:
2005-01-18
影响因子:
11.1
作者:
Polekhina, G;Giddings, KS;Parker, MW
通讯作者:
Parker, MW
影响因子:
2.9
作者:
Shepard, LA;Heuck, AP;Tweten, RK
通讯作者:
Tweten, RK