calyculin
{{Chembox
| Section7 = {{Chembox Properties
| Formula = C50H81N4O15P (Calyculin A)
| MolarMass = 1009.17 g/mol (Calyculin A)
| Appearance =
| Density =
| MeltingPt =
| BoilingPt =
| Solubility = }}
| Verifiedfields = changed
| Watchedfields = changed
| Name = Calyculins
| verifiedrevid = 460015289
| ImageFile = Calyculin A and C Structure.svg
| ImageSize =
| ImageCaption = Calyculins A and C
| IUPACName = ((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 (Calyculin A){{cite web| title=Calyculin A| date=2015-01-02| website=Cell Signaling Technology| url=https://media.cellsignal.com/pdf/9902.pdf}}
| OtherNames =
| Section1 = {{Chembox Identifiers
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 9084513
| ChemSpiderID_Comment = (Calyculin A)
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI_Comment = (Calyculin A)
| StdInChI = 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+/m1/s1
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = FKAWLXNLHHIHLA-LIKMAGLISA-N
| CASNo_Ref = {{cascite|correct|??}}
| CASNo = 101932-71-2
| CASNo_Comment = (Calyculin A)
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = 7D07U14TK3
| UNII_Comment = (Calyculin A)
| PubChem = 10909255
| PubChem_Comment = (Calyculin A)
| ChEMBL_Ref = {{ebicite|changed|EBI}}
| ChEMBL = 384277
| ChEBI = 41791
| ChEBI_Comment = (Calyculin A)
| SMILES = }}
| Section2 = {{Chembox Properties
| Formula = C51H83N4O15P (Calyculin C)
| MolarMass = 1023.2 g/mol (Calyculin C)
| Appearance =
| Density =
| MeltingPt =
| BoilingPt =
| Solubility = }}
| Section3 = {{Chembox Hazards
| MainHazards =
| FlashPt =
| AutoignitionPt = }}
}}
Calyculins are natural products originally isolated from the marine sponge Discodermia calyx.{{cite journal| title = Calyculin A, an inhibitor of protein phosphatases, a potent tumor promoter on CD-1 mouse skin| vauthors = Suganuma M, Fujiki H, Furuya-Suguri H, Yoshizawa S, Yasumoto S, Kato Y, Fusetani N, Sugimura T| journal = Cancer Res.| year = 1990| volume = 50| issue =12| pages = 3521–3525| pmid = 2160320}} Calyculins have proven to be strong serine/threonine protein phosphatase inhibitors and based on this property, calyculins might be potential tumor-promoting agents.
A laboratory synthesis of calyculin A has been reported.{{Cite journal |last=Tanimoto |first=Norihiko |last2=Gerritz |first2=Samuel W. |last3=Sawabe |first3=Akiyoshi |last4=Noda |first4=Takeshi |last5=Filla |first5=Sandra A. |last6=Masamune |first6=Satoru |date=1994-03-17 |title=Synthese von natürlich vorkommendem (−)‐Calyculin A |url=https://onlinelibrary.wiley.com/doi/10.1002/ange.19941060611 |journal=Angewandte Chemie |language=en |volume=106 |issue=6 |pages=674–677 |doi=10.1002/ange.19941060611 |issn=0044-8249}}
Biosynthesis
Calyculin A is biosynthesized as a pyrophosphate containing phosphocalyculin A protoxins by a hybrid PKS-NRPS pathway within the sponge bacterial symbiont, "Candidatus Entotheonella" sp.{{cite journal | last=Jomori | first=Takahiro | last2=Matsuda | first2=Kenichi | last3=Egami | first3=Yoko | last4=Abe | first4=Ikuro | last5=Takai | first5=Akira | last6=Wakimoto | first6=Toshiyuki | title=Insights into phosphatase-activated chemical defense in a marine sponge holobiont | journal=RSC Chemical Biology | volume=2 | issue=6 | date=2021 | issn=2633-0679 | pmid=34977575 | pmc=8637855 | doi=10.1039/D1CB00163A | doi-access=free | pages=1600–1607}}
References
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