Biological Information

Background Information:

Drug transporters are from two major transporter superfamilies, ABC (ATP binding cassette) and SLC (solute carrier) transporters. Organic Anion Transporter 1 (OAT1) belongs to SLC superfamily and functions as transporters that mediate drug uptake in kidney. This cell-based assay assesses if test compounds are inhibitors of target transporters. p-Aminihippurate is a known substrate of OAT1 and is used as the probe substrate in this assay. The intracellular accumulation of p-Aminihippurate in OAT1 overexpressing cell line is detected via LC-MS/MS. The level of test compound transporter inhibition activity is inversely proportional to the accumulation of the probe substrate. The compound is tested at 1 concentration, n=2 in this assay.

Family:

Transporter

Sub Family:

SLCO / Organic Anion

Class:

SLC

Organism:

Human

Construct Details:

Full length, recombi

Cell Type:

CHO-K1

Assay Information

Assay Type:

Functional

Assay Sub Type:

Cell Based

Functional Mode:

Antagonist

Detection Method:

HPLC-MS/MS

Testing Information

Substrate:

10 µM P-aminohippurate

Incubation:

30 min pre-incubation and 20 min incubation with substrate at 37°C

Criteria For Significance:

25 % inhibition

Test Sample Requirements:

Minimum for 1) Screen: 100 μl of 10 mM stock -OR- 1 to 2 mg (pre-weighed). 2) Dose Response: 250 μl of 10 mM stock -OR- 1.5 to 2 mg (pre-weighed).

Turnaround Time

Standard:

20 Business Days

Additional Information

Brand:

Cerep

Testing Location:

USA - St Charles, MO