For research use only. Not for therapeutic Use.
THR-18 is an 18-mer peptide derived from the sequence of human plasminogen activator inhibitor 1 (PAI-1), having the ability to bind to a site of tissue plasminogen activator (tPA) distal to its catalytic site and uncouple the beneficial clot-dissolving properties of tPA from its deleterious non-fibrinolytic effects.
| Catalog Number | I037264 |
| CAS Number | 1383452-03-6 |
| Synonyms | THR-18; THR18; THR 18 |
| Molecular Formula | C105H167F3N28O28S2 |
| Purity | 98% |
| Solubility | Soluble in DMSO |
| Appearance | Solid powder |
| Storage | Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years). |
| IUPAC Name | (4S)-4-[[(2S)-1-[(2S)-2-[[(2S)-2-[[(2S)-2-Acetamido-5-carbamimidamidopentanoyl]amino]-4-methylsulfanylbutanoyl]amino]propanoyl]pyrrolidine-2-carbonyl]amino]-5-[[(2S)-1-[[(2S,3S)-1-[[(2S,3S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[(2S)-2-[[1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[1-[[(2S)-1-amino-5-carbamimidamido-1-oxopentan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-3-(4-hydroxyphenyl)-1-oxopropan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxo-3-phenylpropan-2-yl]carbamoyl]pyrrolidin-1-yl]-5-carbamimidamido-1-oxopentan-2-yl]amino]-3-carboxy-1-oxopropan-2-yl]amino]-4-methylsulfanyl-1-oxobutan-2-yl]amino]-3-methyl-1-oxopentan-2-yl]amino]-3-methyl-1-oxopentan-2-yl]amino]-4-carboxy-1-oxobutan-2-yl]amino]-5-oxopentanoic acid;2,2,2-trifluoroacetic acid |
| InChI | InChI=1S/C103H166N28O26S2.C2HF3O2/c1-15-56(9)81(129-98(155)82(57(10)16-2)128-88(145)66(37-39-77(136)137)117-86(143)65(36-38-76(134)135)119-93(150)74-30-23-45-130(74)99(156)58(11)114-84(141)67(40-47-158-13)118-85(142)64(115-59(12)132)28-21-43-112-102(107)108)97(154)120-68(41-48-159-14)87(144)124-73(52-78(138)139)91(148)121-69(29-22-44-113-103(109)110)100(157)131-46-24-31-75(131)94(151)125-71(50-60-25-18-17-19-26-60)90(147)122-70(49-53(3)4)89(146)123-72(51-61-32-34-62(133)35-33-61)92(149)126-80(55(7)8)96(153)127-79(54(5)6)95(152)116-63(83(104)140)27-20-42-111-101(105)106;3-2(4,5)1(6)7/h17-19,25-26,32-35,53-58,63-75,79-82,133H,15-16,20-24,27-31,36-52H2,1-14H3,(H2,104,140)(H,114,141)(H,115,132)(H,116,152)(H,117,143)(H,118,142)(H,119,150)(H,120,154)(H,121,148)(H,122,147)(H,123,146)(H,124,144)(H,125,151)(H,126,149)(H,127,153)(H,128,145)(H,129,155)(H,134,135)(H,136,137)(H,138,139)(H4,105,106,111)(H4,107,108,112)(H4,109,110,113);(H,6,7)/t56-,57-,58-,63-,64-,65-,66-,67-,68-,69-,70-,71?,72-,73-,74-,75-,79?,80-,81-,82-;/m0./s1 |
| InChIKey | UNDAPMUKULIMSY-HGKXDEPLSA-N |
| SMILES | O=C(O)CC[C@H](NC([C@H]1N(C([C@@H](NC([C@@H](NC([C@@H](NC(C)=O)CCCNC(N)=N)=O)CCSC)=O)C)=O)CCC1)=O)C(N[C@@H](CCC(O)=O)C(N[C@@H]([C@@H](C)CC)C(N[C@@H]([C@@H](C)CC)C(N[C@@H](CCSC)C(N[C@@H](CC(O)=O)C(N[C@@H](CCCNC(N)=N)C(N2[C@H](C(NC(CC3=CC=CC=C3)C(N[C@@H](CC(C)C)C(N[C@@H](CC4=CC=C(O)C=C4)C(N[C@@H](C(C)C)C(NC(C(C)C)C(N[C@@H](CCCNC(N)=N)C(N)=O)=O)=O)=O)=O)=O)=O)CCC2)=O)=O)=O)=O)=O)=O)=O.O=C(O)C(F)(F)F |
| Reference | 1: Krakovsky M, Polianski V, Nimrod A, Higazi A, Leker RR, Lamensdorf I. THR-18, a 18-mer peptide derived from PAI-1, is neuroprotective and improves thrombolysis by tPA in rat stroke models. Neurol Res. 2011 Nov;33(9):983-90. doi: 10.1179/1743132811Y.0000000018. PubMed PMID: 22081002. |
