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C5552

Sigma-Aldrich

Calyculin A

from sea sponge (Discodermia calyx), ≥90% (HPLC), solid, protein phosphatases types 1 and 2A inhibitor

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About This Item

Empirical Formula (Hill Notation):
C50H81N4O15P
CAS Number:
Molecular Weight:
1009.17
Beilstein:
4903216
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:
NACRES:
NA.77

product name

Calyculin A from Discodermia calyx, ≥90% (HPLC), solid

biological source

sea sponge (Discodermia calyx)

Quality Level

Assay

≥90% (HPLC)

form

solid

mol wt

~_1.0 kDa

color

white

mp

247-249  °C

solubility

DMSO: soluble
ethanol: soluble

storage temp.

−20°C

SMILES string

COC[C@@H]([C@H](O)[C@H](O)C(=O)NCC[C@H](C)c1nc(\C=C\C[C@@H]2O[C@]3(C[C@@H](O)[C@@H]2C)OC([C@H](C[C@H](O)[C@H](C)[C@H](O)[C@H](C)\C=C(C)\C(C)=C\C=C\C(C)=C/C#N)OC)[C@H](OP(O)(O)=O)C3(C)C)co1)N(C)C

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

InChI key

FKAWLXNLHHIHLA-YCBIHMBMSA-N

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General description

Calyculin A is derived from the marine sponge Discodermia calyx. It corresponds to a molecular weight of 1008 Da.

Application

Calyculin A from Discodermia calyx has been used:
  • as an inhibitor of serine-threonine protein phosphatase 2A
  • as an inhibitor of cyclin D1 phosphatase in human breast cancer cells
  • as an inhibitor of protein phosphatase 2A (PP2A) and PP1 in mouse melanoma cell lines B16-F0 cells

Biochem/physiol Actions

Calyculin A from Discodermia calyx binds to the okadaic acid receptors. In smooth muscles, it activates calcium channel. Calyculin A regulates protein phosphorylation thereby regulating capacitation in sperm. It enhances phosphorylation of nuclear factor κ-light-chain-enhancer of activated B cells (NF-κB) and apoptosis.
Inhibitor of protein phosphatases types 1 and 2A; marine toxin, potent tumor promotor.

Features and Benefits

This compound is featured on the Phosphoprotein Phosphatases (Serine/Threonine) page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

Pictograms

Skull and crossbones

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Skin Irrit. 2

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Calyculin A, an inhibitor of protein phosphatases, a potent tumor promoter on CD-1 mouse skin
Suganuma M, et al.
Cancer Research, 50(12), 3521-3525 (1990)
Calyculin A induces apoptosis and stimulates phosphorylation of p65NF-kappaB in human osteoblastic osteosarcoma MG63 cells
Tanaka H, et al.
International Journal of Oncology, 31(2), 389-396 (2007)
I Bize et al.
The American journal of physiology, 277(5 Pt 1), C926-C936 (1999-11-24)
Activation of K-Cl cotransport is associated with activation of membrane-bound serine/threonine protein phosphatases (S/T-PPases). We characterize red blood cell S/T-PPases and K-Cl cotransport activity regarding protein phosphatase inhibitors and response to changes in ionic strength and cell size. Protein phosphatase
Interleukin 4 regulates phosphorylation of serine 756 in the transactivation domain of Stat6 roles for multiple phosphorylation sites and Stat6 function
Wang Y, et al.
The Journal of Biological Chemistry, 279(24), 25196-25203 (2004)
K Iizuka et al.
British journal of pharmacology, 128(4), 925-933 (1999-11-11)
1 G protein-mediated Ca2+ sensitization of airway smooth muscle contraction was investigated with respect to the relative importance of Rho-associated coiled coil forming protein kinase (ROCK) and protein kinase C (PKC). We examined the effects of Y-27632, a ROCK inhibitor

Articles

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