8cjs
From Proteopedia
(Difference between revisions)
| Line 4: | Line 4: | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[8cjs]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Chilobrachys Chilobrachys]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8CJS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8CJS FirstGlance]. <br> | <table><tr><td colspan='2'>[[8cjs]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Chilobrachys Chilobrachys]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8CJS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8CJS FirstGlance]. <br> | ||
| - | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR, 10 models</td></tr> |
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=8cjs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8cjs OCA], [https://pdbe.org/8cjs PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8cjs RCSB], [https://www.ebi.ac.uk/pdbsum/8cjs PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8cjs ProSAT]</span></td></tr> | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=8cjs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8cjs OCA], [https://pdbe.org/8cjs PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8cjs RCSB], [https://www.ebi.ac.uk/pdbsum/8cjs PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8cjs ProSAT]</span></td></tr> | ||
</table> | </table> | ||
| Line 13: | Line 13: | ||
Na(v)1.1 is an important pharmacological target as this voltage-gated sodium channel is involved in neurological and cardiac syndromes. Channel activators are actively sought to try to compensate for haploinsufficiency in several of these pathologies. Herein we used a natural source of new peptide compounds active on ion channels and screened for drugs capable to inhibit channel inactivation as a way to compensate for decreased channel function. We discovered that JzTx-34 is highly active on Na(v)1.1 and subsequently performed a full structure-activity relationship investigation to identify its pharmacophore. These experiments will help interpret the mechanism of action of this and formerly identified peptides as well as the future identification of new peptides. We also reveal structural determinants that make natural ICK peptides active against Na(v)1.1 challenging to synthesize. Altogether, the knowledge gained by this study will help facilitate the discovery and development of new compounds active on this critical ion channel target. | Na(v)1.1 is an important pharmacological target as this voltage-gated sodium channel is involved in neurological and cardiac syndromes. Channel activators are actively sought to try to compensate for haploinsufficiency in several of these pathologies. Herein we used a natural source of new peptide compounds active on ion channels and screened for drugs capable to inhibit channel inactivation as a way to compensate for decreased channel function. We discovered that JzTx-34 is highly active on Na(v)1.1 and subsequently performed a full structure-activity relationship investigation to identify its pharmacophore. These experiments will help interpret the mechanism of action of this and formerly identified peptides as well as the future identification of new peptides. We also reveal structural determinants that make natural ICK peptides active against Na(v)1.1 challenging to synthesize. Altogether, the knowledge gained by this study will help facilitate the discovery and development of new compounds active on this critical ion channel target. | ||
| - | Structure-function relationship of new peptides activating human Na(v)1.1.,Lopez L, De Waard S, Meudal H, Caumes C, Khakh K, Peigneur S, Oliveira-Mendes B, Lin S, De Waele J, Montnach J, Cestele S, Tessier A, Johnson JP, Mantegazza M, Tytgat J, Cohen C, Beroud R, Bosmans F, Landon C, De Waard M Biomed Pharmacother. 2023 | + | Structure-function relationship of new peptides activating human Na(v)1.1.,Lopez L, De Waard S, Meudal H, Caumes C, Khakh K, Peigneur S, Oliveira-Mendes B, Lin S, De Waele J, Montnach J, Cestele S, Tessier A, Johnson JP, Mantegazza M, Tytgat J, Cohen C, Beroud R, Bosmans F, Landon C, De Waard M Biomed Pharmacother. 2023 Sep;165:115173. doi: 10.1016/j.biopha.2023.115173. Epub , 2023 Jul 13. PMID:37453200<ref>PMID:37453200</ref> |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
Current revision
JzTx-34 toxin peptide W31A mutant
| |||||||||||
