Mode of Interaction of the Signal-Transducing Protein EIIA(Glc) with the Maltose ABC Transporter in the Process of Inducer Exclusion.
Mode of Interaction of the Signal-Transducing Protein EIIA(Glc) with the Maltose ABC Transporter in the Process of Inducer Exclusion.
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诱导子排除过程中信号转导蛋白EIIA(Glc)与麦芽糖ABC转运蛋白的相互作用模式
DOI:
10.1021/acs.biochem.6b00721
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发表时间:
2016
期刊:
影响因子:
2.9
通讯作者:
Schneider
中科院分区:
文献类型:
--
作者:
Wuttge;Timachi;Bordignon;Schneider
Enzyme IIAGlc(EIIAGlc) of the phosphoenolpyruvate phosphotransferase system for the uptake of glucose inEscherichia coliandSalmonellainhibits the maltose ATP-binding cassette transporter (MalE-FGK2) by interaction with the nucleotide-binding and -hydrolyzing subunit MalK, a process termed inducer exclusion. We have investigated binding of EIIAGlcto the MalK dimer by cysteine cross-linking in proteoliposomes. The results prove that the binding site I of EIIAGlcis contacting the N-terminal subdomain of MalK while the binding site II is relatively close to the C-terminal (regulatory) subdomain, in agreement with a crystal structure [Chen, S., Oldham, M. L., Davidson, A. L., and Chen, J. (2013) Nature 499, 364−368]. Moreover, EIIAGlcwas found to bind to the MalK dimer regardless of its conformational state. Deletion of the amphipathic N-terminal peptide of EIIAGlc, which is required for inhibition, reduced formation of cross-linked products. Using a spin-labeled transporter variant and EPR spectroscopy, we demonstrate that EIIAGlcarrests the transport cycle by inhibiting the ATP-dependent closure of the MalK dimer.
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影响因子:
6.8
作者:
Chen J
通讯作者:
Chen J
影响因子:
4.8
作者:
S. Miller;M. Edwards;Cafer Ozdemir;I. Booth
通讯作者:
I. Booth
DOI:
10.1046/j.1432-1033.2002.03099.x
发表时间:
2002
期刊:
European journal of biochemistry
影响因子:
--
作者:
A. Stein;M. Seifert;R. Volkmer‐Engert;Jörg Siepelmeyer;K. Jahreis;E. Schneider
通讯作者:
E. Schneider
DOI:
10.1016/s0021-9258(17)45318-x
发表时间:
1990
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
David A. Dean;J. Reizer;Hiroshi Nikaido;M. H. Saier
通讯作者:
M. H. Saier
影响因子:
3.6
作者:
Daus, Martin L.;Berendt, Susanne;Schneider, Erwin
通讯作者:
Schneider, Erwin