Van Der Sluis PJ, Boer GJ, Pool CW. Fixation and immunoperoxidase staining of oligopeptides after isoelectric focusing in thin polyacrylamide slab gels.
Anal Biochem 1983;
133:226-32. [PMID:
6195940 DOI:
10.1016/0003-2697(83)90247-6]
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Abstract
In this paper a new method for immunological detection of small peptides after isoelectric focusing in thin (200 micron) polyacrylamide slab gels is presented. The peptides are immobilized immediately after focusing by pressing a sheet of glutaraldehyde-impregnated filter paper onto the gel. By this procedure, the gel adheres to the paper and this press-blot can be stained using immunoperoxidase staining procedures. Using the two-step peroxidase conjugate and the three-step peroxidase-antiperoxidase method, several oligopeptides could be visualized after focusing. The detection limit of this method appears to be in the nanogram range.
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