Calyculin A

• CAT Number: I000139
• CAS Number: 101932-71-2
• Molecular Formula: C₅₀H₈₁N₄O₁₅P
• Molecular Weight: 1009.17
• Purity: 90%
• Target: Protein Ser/Thr Phosphatases
• IUPAC Name: [(2R,3R,5R,7R,8S,9S)-2-[(1S,3S,4S,5R,6R,7E,9E,11E,13Z)-14-cyano-3,5-dihydroxy-1-methoxy-4,6,8,9,13-pentamethyltetradeca-7,9,11,13-tetraenyl]-9-[(E)-3-[2-[(2S)-4-[[(2S,3S,4S)-4-(dimethylamino)-2,3-dihydroxy-5-methoxypentanoyl]amino]butan-2-yl]-1,3-oxazol-4-yl]prop-2-enyl]-7-hydroxy-4,4,8-trimethyl-1,10-dioxaspiro[4.5]decan-3-yl] dihydrogen phosphate
• InChI: InChI=1S/C50H81N4O15P/c1-29(20-22-51)16-14-17-30(2)32(4)24-33(5)42(57)35(7)38(55)25-41(65-13)45-46(69-70(61,62)63)49(8,9)50(68-45)26-39(56)34(6)40(67-50)19-15-18-36-27-66-48(53-36)31(3)21-23-52-47(60)44(59)43(58)37(28-64-12)54(10)11/h14-18,20,24,27,31,33-35,37-46,55-59H,19,21,23,25-26,28H2,1-13H3,(H,52,60)(H2,61,62,63)/b16-14+,18-15+,29-20-,30-17+,32-24+/t31-,33+,34-,35-,37-,38-,39+,40-,41-,42+,43-,44-,45+,46-,50+/m0/s1
• InChIKey: FKAWLXNLHHIHLA-YCBIHMBMSA-N
• SMILES: C[C@H]1[C@@H](C[C@@]2(C([C@H]([C@H](O2)[C@H](C[C@@H]([C@H](C)[C@@H]([C@H](C)/C=C(\C)/C(=C/C=C/C(=C\C#N)/C)/C)O)O)OC)OP(=O)(O)O)(C)C)O[C@H]1C/C=C/C3=COC(=N3)[C@@H](C)CCNC(=O)[C@H]([C@H]([C@H](COC)N(C)C)O)O)O

Calyculin A（Cat No.:I000139）is a potent marine-derived natural toxin isolated from the sponge Discodermia calyx. It is known for its strong inhibitory activity against protein phosphatases PP1 and PP2A, enzymes that regulate cellular phosphorylation states. With a complex polyketide-peptide structure, Calyculin A is used extensively in biochemical and cell biology research to study signal transduction, cell cycle control, and apoptosis. It induces cytoskeletal changes and affects various cellular processes by disrupting phosphorylation balance. Due to its high potency and specificity, it serves as a valuable tool in cancer and neurobiology research.