Biological Information

Background Information:

Protein kinase Ca (PKCa) is one of the major protein kinase C isoforms of a family of serine/threonine protein kinases. Breakdown of phosphatidylinositol leads to formation of diacylglycerol and inositol triphophate, the former acting synergistically with Ca2+ to activate protein kinase C (PKC), resulting in translocation of the enzyme from cytosol to the membrane. Phosphorylation of proteins by PKC has been implicated as a pivotal regulatory element in signal transduction, cellular regulation, and with a high affinity to phorbol ester tumor promoters.

Family:

Kinase

Sub Family:

PKC

Class:

Protein Ser/Thr

Protein Name:

PKCa

Uniprot Number:

P17252

Gene Name:

PRKCA

Gene ID:

5578

Accession Number:

NM_002737

Organism:

Human

Construct Details:

Full Length, Recombinant

Assay Information

Assay Type:

Biochemical

Assay Sub Type:

Enzymatic

Functional Mode:

Antagonist

Detection Method:

Radiometry

Measured Response:

Scintillation

Testing Information

Procedure Summary:

Human recombinant protein kinase Ca expressed in Sf9 insect cells is used. Test compound and/or vehicle is preincubated with 100 ng/ml enzyme‡, 1.5 mM Ca2+, 100 μg/ml phosphatidylserine and 20 μg/ml diacylglycerol in modified MOPS buffer pH7.2 for 15 minutes at 25⁰C. The reaction is initiated by addition of 250 μg/ml histone H1, 10 μM ATP and 0.25 μCi [γ32P]ATP for another 30 minute incubation period and terminated by further addition of 3% H3PO4. An aliquot is removed and counted to determine the amount of [32P]Histone H1 formed. Compounds are screened at 10 μM.

Substrate:

250 µg/ml Histone

ATP Concentration:

10 uM

Incubation:

10 min at 25°C

Control Inhibitor:

Staurosporine

Criteria For Significance:

≥ 50% of max stimulation or inhiibition

Test Concentration / Dose:

Suggested concentration for initial testing is 10 uM

Test Sample Requirements:

Minimum for 1) Screen: 25 μl of 10 mM stock -OR- 1 mg (pre-weighed). 2) Dose Response: 60 μl of 10 mM stock -OR- 1 mg (pre-weighed).

Minimum Order Quantity:

2

Turnaround Time

Standard:

15 Business Days

Reference Compound Data

PubChem ID

2404

Name

Ro-31-8425

Measurement

0.0019μM - IC50

PubChem ID

3542

Name

1-(5-ISOQUINOLINESULFONYL)-2-METHYLPIPERAZINE

Measurement

67μM - IC50

PubChem ID

5566

Name

Trifluoperazine

Measurement

>10μM - IC50

PubChem ID

5353940

Name

SB 202190

Measurement

>10μM - IC50

PubChem ID

98053103

Name

K-252a

Measurement

0.17μM - IC50

PubChem ID

122130844

Name

Staurosporine

Measurement

0.0028μM - IC50

Clinical Relevance

Therapeutic Area:

CNS/Addiction/Pain

Additional Information

Brand:

LeadHunter

Testing Location:

Taiwan - Taipei

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