Assay Report Card

ID: ALA3706338

Type: Binding

Description: Inhibition Assay: A recombinant retrovirus was created from expression plasmid FLAG-EML4-ALKv1/pMX-iresCD8 in which cDNA for EMLA-ALK fusion protein v1 was integrated, and injected into mouse lymphoid cell line BA/F3 cells. Using a magnetic bead reagent for cell separation and a purification column (anti-CD8 monoclonal antibody immobilized on magnetic beads and a MiniMACS purification column; both are products of MilteDyi Biotec Inc.), cell surface CD8-expressing cells were purified to establish EML4-ALK fusion protein v1-expressing BA/F3 cells. From the cells, EML4-ALK fusion protein v1 was purified and subjected to kinase activity evaluation. EML4-ALK fusion protein v1 was investigated for its phosphorylation activity toward a peptide substrate by using a kinase activity detection kit (HTRF KinEASE-TK; Cisbio Inc.). Test compounds were each added to a reaction solution containing the enzyme protein to give 8 final concentrations from 1000 nM to 0.3 nM, followed by addition of ATP.

Cell type: lymphoid