Novel selective allosteric and bitopic ligands for the S1P(3) receptor.
Novel selective allosteric and bitopic ligands for the S1P(3) receptor.
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DOI:
10.1021/cb300392z
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发表时间:
2012-12-21
影响因子:
4
通讯作者:
Rosen, Hugh
中科院分区:
文献类型:
--
作者:
Jo, Euijung;Bhhatarai, Barun;Repetto, Emanuela;Guerrero, Miguel;Riley, Sean;Brown, Steven J.;Kohno, Yasushi;Roberts, Edward;Schuerer, Stephan C.;Rosen, Hugh
Sphingosine 1-phosphate (S1P) is a lysophospholipid signaling molecule that regulates important biological functions, including lymphocyte trafficking and vascular development, by activating G protein-coupled receptors for S1P, namely S1P1 through S1P5. Here we map the S1P3 binding pocket with a novel allosteric agonist (CYM-5541), an orthosteric agonist (S1P), and a novel bitopic antagonist (SPM-242). With a combination of site-directed mutagenesis, ligand competition assay, and molecular modeling, we concluded that S1P and CYM-5541 occupy different chemical spaces in the ligand binding pocket of S1P3. CYM-5541 allowed us to identify an allosteric site where Phe263 is a key gate-keeper residue for its affinity and efficacy. This ligand lacks a polar moiety and the novel allosteric hydrophobic pocket permits S1P3 selectivity of CYM-5541 within the highly similar S1P receptor family. On the other hand, a novel S1P3-selective antagonist, SPM-242, in the S1P3 pocket occupies the ligand binding spaces of both S1P and CYM-5541, showing its bitopic mode of binding. Therefore, our coordinated approach with biochemical data and molecular modeling, based on our recently published S1P1 crystal structure data in a highly conserved set of related receptors with a shared ligand, provides a strong basis for the successful optimization of orthosteric, allosteric, and bitopic modulators of S1P3.
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DOI:
10.1038/nrd2760
发表时间:
2009-01
期刊:
Nature reviews. Drug discovery
影响因子:
--
作者:
通讯作者:
--
影响因子:
5.5
作者:
Hopson, Kristen Park;Truelove, Jessica;Waeber, Christian
通讯作者:
Waeber, Christian
DOI:
10.1038/nrd2356
发表时间:
2009-04
期刊:
Nature reviews. Drug discovery
影响因子:
--
作者:
通讯作者:
--
DOI:
10.1016/j.cub.2008.10.061
发表时间:
2008-12-09
期刊:
Current biology : CB
影响因子:
--
作者:
Osborne N;Brand-Arzamendi K;Ober EA;Jin SW;Verkade H;Holtzman NG;Yelon D;Stainier DY
通讯作者:
Stainier DY
影响因子:
3.6
作者:
Deng, Qiaolin;Clemas, Joseph A.;Parent, Stephen A.
通讯作者:
Parent, Stephen A.