Quantitative colorimetric assay. This assay has high sensitivity and excellent specificity for detection of High Sensitive Wingless Type MMTV Integration Site Family, Member 3A (WNT3A). No significant cross-reactivity or interference between High Sensitive Wingless Type MMTV Integration Site Family, Member 3A (WNT3A) and analogues was observed. Sample types: cell culture supernatants, cell lysates, plasma, serum, tissue homogenates. Range: 0.156 - 10 ng/ml. Precision: Intra-Assay: CV<10% / Inter-Assay: CV<12%. Time: 3 hours