Proteomic searches comparing two (R)-lacosamide affinity baits: An electrophilic arylisothiocyanate and a photoactivated arylazide group.
Proteomic searches comparing two (R)-lacosamide affinity baits: An electrophilic arylisothiocyanate and a photoactivated arylazide group.
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蛋白质组学搜索比较两种 (R)-拉科酰胺亲和诱饵:亲电子芳基异硫氰酸酯和光活化芳基叠氮化物基团。
DOI:
10.1039/c000987c
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发表时间:
2010
影响因子:
3.2
通讯作者:
Kohn,Harold
中科院分区:
文献类型:
--
作者:
Park,KiDuk;Stables,JamesP;Liu,Rihe;Kohn,Harold
We have advanced a novel strategy to search for lacosamide ((R)-1) targets in the brain proteome where protein binding is expected to be modest. Our approach used lacosamide agents containing “affinity bait” (AB) and “chemical reporter” (CR) units. The affinity bait moiety is designed to irreversibly react with the target, and the CR group permits protein detection and capture. In this study, we report the preparation and evaluation of (R)-N-(4-azido)benzyl 2-acetamido-3-(prop-2-ynyloxy)propionamide ((R)-3) and show that this compound exhibits potent anticonvulsant activities in the MES seizure model in rodents. We compared the utility of (R)-3 with its isostere, (R)-N-(4-isothiocyanato)benzyl 2-acetamido-3-(prop-2-ynyloxy)propionamide ((R)-2), in proteomic studies designed to identify potential (R)-1 targets. We showed that despite the two-fold improved anticonvulsant activity of (R)-3 compared with (R)-2, (R)-2 was superior in revealing potential binding targets in the mouse brain soluble proteome. The difference in these agents’ utility has been attributed to the reactivity of the affinity baits (i.e., (R)-2: aryl isothiocyanate moiety; (R)-3: photoactivated aryl azide intermediates) in the irreversible protein modification step, and we conclude that this factor is a critical determinant of successful target detection where ligand (drug) binding is modest. The utility of (R)-2 and (R)-3 in in situ proteome studies is explored.
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DOI:
10.1007/978-1-4613-3894-9_23
发表时间:
1984
期刊:
The Journal of general virology
影响因子:
--
作者:
Y. Becker;Y. Shtram;J. Hadar;T. Ben;A. Barasofsky;Y. Asher;E. Tabor;A. Scemama;D. Gilden
通讯作者:
D. Gilden
影响因子:
3.1
作者:
P. Morahan;P. Klykken;S. Smith;L. Harris;A. Munson
通讯作者:
A. Munson
影响因子:
6.7
作者:
P. Cushman;R. Khurana
通讯作者:
R. Khurana
影响因子:
3.2
作者:
F. Rapp
通讯作者:
F. Rapp
影响因子:
3.1
作者:
MCKENDALL, RR;KLASSEN, T;BARINGER, JR
通讯作者:
BARINGER, JR