The Biosensis Neurotrophin 4/5 Rapid™ enzyme-linked immunosorbent assay (ELISA) kit is a sandwich ELISA that allows the specific, fast and reliable quantification of NT4/5 in less than 4 hours in cell culture supernatants, human citrate-plasma and brain extracts only if used as directed.

This NT4/5 ELISA kit employs a recombinant human NT4/5 standard. The purpose of this kit is the in vitro quantitative determination of human NT4/5 in samples such as cell culture supernatants, serum and plasma (EDTA and citrate). The capture and detection antibodies will also detect NT4/5 from other species due to a high degree of NT4/5 amino acid sequence homology. Therefore, this ELISA kit can be used to quantify NT4/5 in many species including mouse, rat and monkey.

The antibodies used in this kit bind to epitopes within the mature domain of NT4/5. Thus, this ELISA kit will quantify the mature form of NT4/5, and may also detect the full-length pro-form of NT4/5.

This kit consists of a pre-coated polyclonal anti-NT4/5 capture antibody, a biotinylated anti-NT4/5 detection antibody and horseradish peroxidase (HRP)-conjugated streptavidin. The addition of a substrate (3,3’,5,5’-tetramethylbenzidine, TMB) yields a coloured reaction product, which is directly proportional to the concentration of NT4/5 present in samples and protein standards.

Please refer to the kit protocol for specific use instructions for each substrate application, in particular blood samples.