Human PRR4/Proline Rich Protein 4 ELISA Kit

From Assay Genie, this sandwich ELISA kit is specifically designed for the precise measurement of PRR4 (Proline-rich protein 4) levels in human samples. It uses a double-antibody sandwich format with TMB substrate colourimetric detection, and absorbance is read at 450 nm. The kit offers a sensitivity of 0.188 ng/mL and a measurement range of 0.313–20 ng/mL.

Acceptable sample types include serum, plasma, cell culture supernatant, cell or tissue lysate, and other liquid samples, and the kit is stored at 2–8°C for 12 months. PRR4 is a proline-rich protein involved in cellular processes such as cell adhesion and signalling pathways. Dysregulation of PRR4 has been linked to cancer, autoimmune diseases, and inflammatory disorders, making it a relevant biomarker for research into these conditions and for exploring potential therapeutic strategies.

Reported spike-and-recovery performance is 95–104% (average 100%) for serum, 88–102% (average 96%) for EDTA plasma, and 85–101% (average 93%) for heparin plasma. Linearity across 1:2, 1:4 and 1:8 dilutions is 85–100%, 84–99% and 81–98% for serum; 87–92%, 86–93% and 83–96% for EDTA plasma; and 86–103%, 87–98% and 84–96% for heparin plasma.