Biological Information

Background Information:

KRAS (Kirsten rat sarcoma virus) encodes a guanosine triphosphatase (GTPase) protein called K-Ras, acting like a switch turned on and off by the GTP and GDP molecules. Key effector pathways downstream of KRAS include mitogen-activated protein kinase (MAPK), phosphatidylinositol-3-kinase (PI3K), and Ras-like GEF (RalGEF); all these effectors are responsible for cell proliferation, cell cycle regulation, metabolic changes, cell survival, and cell differentiation. Driver mutations in KRAS underlie the pathogenesis of up to 20% of human cancers. KRASG12D variant is the most prevalent and oncogenic. Selective KRASG12D inhibitors can form salt bridge with Asp12 residue and induced-fit pocket to display anti-proliferative and anti-tumor effects.

Family:

Other

Class:

Other

Protein Name:

KRAS

Uniprot Number:

P01116

Protein Aliases:

K-Ras 2

Gene Name:

KRAS

Gene ID:

3845

Gene Aliases:

KRAS1

Accession Number:

NM_033360

Organism:

Human

Construct Details:

Fragment, Recombinant

Assay Information

Assay Type:

Functional

Functional Mode:

Antagonist

Detection Method:

Spectrofluorimetry

Platform:

Plate reader

Measured Response:

Fluorescence

Testing Information

Procedure Summary:

KRAS G12D expressed in E coli cells is used. Test compound and/or vehicle, pretreated KRAS G12D/BODIPY-GDP/Terbium-streptavidin(Tb-SA) are combined. Preincubate for 60 minutes at 25°C. Pre-mixed SOS1/GTP are added into each well and incubated for 30 minutes at 25°C. Read plates on a spectrofluorometer (Excitation: 337 nm; Emission 515/486 nm). Compounds are screened at 10 µM.

Substrate:

0.04 µM BODIPY-GDP

Incubation:

30 min at 25°C

Control Inhibitor:

MRTX1133

Criteria For Significance:

≥ 50% of max stimulation or inhibition

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

137322663

Name

BAY-293

Measurement

0.71µM - IC50

PubChem ID

138911318

Name

BI-3406

Measurement

0.71µM - IC50

PubChem ID

138756246

Name

BI-2852

Measurement

21µM - IC50

PubChem ID

131709242

Name

KPpep-2d

Measurement

0.0063µM - IC50

PubChem ID

162642649

Name

MRTX1133

Measurement

0.00014µM - IC50

Clinical Relevance

Therapeutic Area:

Oncology/Immuno-Oncology

Additional Information

Brand:

LeadHunter

Testing Location:

Taiwan - Taipei

RELATED SOLUTIONS

Item: PP320