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HomeProduct name listK-252B

K-252B

  • CAS NO.:99570-78-2
  • Empirical Formula: C26H19N3O5
  • Molecular Weight: 453.45
  • MDL number: MFCD09878299
  • EINECS: 999-999-2
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-05-18 11:31:18
K-252B Structural

What is K-252B?

Description

K252b is an indolocarbazole isolated from the actinomycete Nocardiopsis, first described as an inhibitor of protein kinase C. However, as this compound does not freely pass through the cell membrane, it is used to inhibit extracellular kinases (ectokinases) of cells in culture. K252b inhibits receptor-mediated degranulation from basophil-like RBL-2H3 cells (IC50 = 0.5 μg/ml) and human basophils. This extracellular inhibitor is also used in comparison studies with the closely related, cell-permeable inhibitor K252a, particularly in studies of neuronal differentiation.

Chemical properties

Yellow solid

The Uses of K-252B

K252A is a staurosporine analogue isolated from a Nocardiopsis strain as a potent inhibitor of protein kinase C. K252A exhibits potent antitumour activity but shows no antimicrobial activity in vitro, or in vivo toxicity in rodents. While K252A is a potent inhibitor of Ca2+/calmodulin kinase II, it is also active against other kinases, notably myosin light chain kinase, cAMP-dependent protein kinase (PKA), protein kinase C (PKC) and cGMP-dependent protein kinase (PKG).

The Uses of K-252B

K 252b, is an antibiotics, and a known protein tyrosine kinase inhibitor. It has been also shown to inhibit the trophic activity of brain-derived neurotrophic factor on dopaminergic (DAergic) neurons and nerve growth factor on basal forebrain cholinergic neurons.

What are the applications of Application

K-252b is an antibiotic and a strong inhibitor of protein kinase C (PKC)

References

1) Kase et al. (1987), K252 compounds, novel and potent inhibitors of protein kinase C and cyclic nucleotide-dependent protein kinases; Biochem. Biophys. Res. Commun., 142 436 2) Makino et al. (2012), Inhibition of uterine sarcoma cell growth through suppression of endogenous tyrosine kinase B signaling; PLoS One, 7 e41049

Properties of K-252B

Boiling point: 769.8±60.0 °C(Predicted)
Density  1.78±0.1 g/cm3(Predicted)
storage temp.  −20°C
solubility  Soluble in DMSO (up to 1 mg/ml) or in DMF (up to 1 mg/ml).
form  ready-to-use solution
pka 3.33±0.40(Predicted)
color  White or off-white
Stability: Stable for 1 year from date of purchase as supplied. Solutions in DMSO or DMF may be stored at -20° for up to 3 months.

Safety information for K-252B

Computed Descriptors for K-252B

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