MBS7239642 is a ready-to-use microwell, strip plate ELISA (enzyme-linked immunosorbent assay) Kit for analyzing the presence of the Activin receptor type-1 (ACVR1) ELISA Kit target analytes in biological samples. The concentration gradients of the kit standards or positive controls render a theoretical kit detection range in biological research samples containing ACVR1. The ELISA analytical biochemical technique of the MBS7239642 kit is based on ACVR1 antibody-ACVR1 antigen interactions (immunosorbency) and an HRP colorimetric detection system to detect ACVR1 antigen targets in samples. The ELISA Kit is designed to detect native, not recombinant, ACVR1. Appropriate sample types may include undiluted body fluids and/or tissue homogenates, secretions. Quality control assays assessing reproducibility identified the intra-assay CV (%) and inter-assay CV(%).