| Description | PhTX-343, also known as Philanthotoxin 343, is synthetic analogue of Philanthotoxin 433. PhTX-343 blocks NMDA-gated ion channels; synthetic analog of the wasp polyamine amide toxin δ-philanthotoxin. |
| Synonyms | (S)-PhTX 343, PhTX-343, (S)-PTX 343, (S)-Philanthotoxin 343, PhTX= 343 |
| molecular weight | 435.613 |
| Molecular formula | C23H41N5O3 |
| CAS | 115976-93-7 |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year |
| References | 1. Kachel HS, Patel RN, Franzyk H, Mellor IR. Block of nicotinic acetylcholine receptors by philanthotoxins is strongly dependent on their subunit composition. Sci Rep. 2016 Nov 30;6:38116. doi: 10.1038/srep38116. PubMed PMID: 27901080; PubMed Central PMCID: PMC5128878. 2. Franzyk H, Grzeskowiak JW, Tikhonov DB, Jaroszewski JW, Mellor IR. The effects of conformational constraints in the polyamine moiety of philanthotoxins on AMPAR inhibition. ChemMedChem. 2014 Aug;9(8):1725-31. doi: 10.1002/cmdc.201402109. Epub 2014 Jul 8. PubMed PMID: 25044789. 3. McClymont DW, Harris J, Mellor IR. Open-channel blockade is less effective on GluN3B than GluN3A subunit-containing NMDA receptors. Eur J Pharmacol. 2012 Jul 5;686(1-3):22-31. doi: 10.1016/j.ejphar.2012.04.036. Epub 2012 Apr 27. PubMed PMID: 22564863; PubMed Central PMCID: PMC3657159. 4. Frølund S, Bella A, Kristensen AS, Ziegler HL, Witt M, Olsen CA, Strømgaard K, Franzyk H, Jaroszewski JW. Assessment of structurally diverse philanthotoxin analogues for inhibitory activity on ionotropic glutamate receptor subtypes: discovery of nanomolar, nonselective, and use-dependent antagonists. J Med Chem. 2010 Oct 28;53(20):7441-51. doi: 10.1021/jm100886h. PubMed PMID: 20873775. |