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2014 ; 15
(14
): 2125-31
Nephropedia Template TP
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Functional chromatography reveals three natural products that target the same
protein with distinct mechanisms of action
#MMPMID25125376
Kang MJ
; Wu T
; Wijeratne EM
; Lau EC
; Mason DJ
; Mesa C
; Tillotson J
; Zhang DD
; Gunatilaka AA
; La Clair JJ
; Chapman E
Chembiochem
2014[Sep]; 15
(14
): 2125-31
PMID25125376
show ga
Access to lead compounds with defined molecular targets continues to be a barrier
to the translation of natural product resources. As a solution, we developed a
system that uses discrete, recombinant proteins as the vehicles for natural
product isolation. Here, we describe the use of this functional chromatographic
method to identify natural products that bind to the AAA+ chaperone, p97, a
promising cancer target. Application of this method to a panel of fungal and
plant extracts identified rheoemodin, 1-hydroxydehydroherbarin, and
phomapyrrolidone A as distinct p97 modulators. Excitingly, each of these
molecules displayed a unique mechanism of p97 modulation. This discovery provides
strong support for the application of functional chromatography to the discovery
of protein modulators that would likely escape traditional high-throughput or
phenotypic screening platforms.