Aggregation Behavior of pHLIP in Aqueous Solution at Low Concentrations: A Fluorescence Study
Aggregation Behavior of pHLIP in Aqueous Solution at Low Concentrations: A Fluorescence Study
复制标题
pHLIP 在低浓度水溶液中的聚集行为:荧光研究
DOI:
10.1007/s10895-018-2260-1
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发表时间:
2018
影响因子:
2.7
通讯作者:
A. Chattopadhyay
中科院分区:
文献类型:
--
作者:
B. D. Rao;H. Chakraborty;S. Keller;A. Chattopadhyay
pH (low) insertion peptide (pHLIP) is a 36-residue peptide derived from the third transmembrane helix of the membrane protein bacteriorhodopsin. The hydrophobicity of this peptide makes it prone to aggregation even at low concentrations, but this has not been studied in detail. In this work, we characterized monomeric and aggregated forms of pHLIP in aqueous solution (pH 8) at low concentrations (~μM) using fluorescence-based approaches, complemented by circular dichroism (CD) spectroscopy. We show here that monomeric and aggregated pHLIP display differential red edge excitation shift (REES) and CD spectra. These spectroscopic features allowed us to show that pHLIP aggregates even at low concentrations. A detailed knowledge of the aggregation behavior of pHLIP under these conditions will be useful for monitoring and quantifying its interaction with membranes.
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DOI:
10.1073/pnas.0601463103
发表时间:
2006-04-25
影响因子:
11.1
作者:
Reshetnyak, YK;Andreev, OA;Engelman, DM
通讯作者:
Engelman, DM
影响因子:
3.9
作者:
Deacon, John C.;Engelman, Donald M.;Barrera, Francisco N.
通讯作者:
Barrera, Francisco N.
影响因子:
3.4
作者:
Reshetnyak, Yana K.;Segala, Michael;Engelman, Donald M.
通讯作者:
Engelman, Donald M.
影响因子:
2.9
作者:
Whitmore, Lee;Wallace, B. A.
通讯作者:
Wallace, B. A.
影响因子:
2.9
作者:
Moshnikova A;Moshnikova V;Andreev OA;Reshetnyak YK
通讯作者:
Reshetnyak YK