Beta-Galactosidase immunoassay for the measurement of cyclic AMP |
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Authors: | E Joseph J L Guesdon |
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Institution: | 1. Genetics Laboratory, St. Christopher''s Hospital for Children, Philadelphia, Pennsylvania, USA;2. Department of Pediatrics, Temple University School of Medicine, Philadelphia, Pennsylvania, USA |
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Abstract: | The previously described method for phenotyping of alpha1-antitrypsin (alpha1-protease inhibitor, Pi) that utilizes separator isoelectric focusing on thin-layer agarose gel (A. R. Qureshi and H. H. Punnett, in Electrophoresis '81, 3rd International Conference on Electrophoresis, pp. 83–87 (1981)) has been improved to give a better resolution of Pi pattern. A shallow pH gradient in the region of the isoelectric point of Pi pattern was obtained by the use of N-(2-acetamido)-2 aminoethanesulfonic acid (1%) and serine (0.8%). The present technique can resolve the Pi alleles. The patterns of Pi phenotypes were found to be similar to those observed on acrylamide gels. The method is fast, reliable, and reproducible. |
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Keywords: | To whom correspondence should be addressed |
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