Improved chemiluminescent western blotting procedure

Bronstein, I.; Voyta, J.C.; Murphy, O.J.; Bresnick, L.; Kricka, L.J.

Biotechniques 12(5): 748-753

1992


ISSN/ISBN: 0736-6205
PMID: 1515143
Document Number: 392593
A chemiluminescent Western blotting procedure and its application in assays for human transferrin and human immunodeficiency virus-I antibodies are described. The procedure is based on a chemiluminescent substrate, adamantyl 1,2-dioxetane aryl phosphate and alkaline phosphatase-labeled detection antibodies. Different membranes (polyvinylidene fluoride, nitrocellulose, nylon) and a proprietary membrane treatment agent (Nitro-BlockTM) have been studied. This sensitive blotting procedure utilizing AMPPD, a polyclonal rabbit anti-transferrin:goat anti-rabbit IgG-alkaline phosphatase detection complex, and a PVDF membrane blocked with Nitro-Block permits the detection of 125 pg (1.6 fmol) of human transferrin. A novel 1,2-dioxetane substrate, CSPD, has also been evaluated.

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