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A polyclonal antiserum against the rabbit progesterone receptor recognizes the human receptor: biochemical characterization


Polyclonal antiserum was generated in guinea pigs immunized with the 116,000 Mr rabbit uterine progesterone receptor (PR). The PR antigen was partially purified by DEAE-cellulose chromatography and preparative sodium dodecyl sulphate-polyacrylamide gel electrophoresis, transferred to nitrocellulose, and the 116,000 Mr band excised and injected into guinea pigs. The antiserum recognized on protein blots rabbit uterine PR of Mr 116,000 and 81,000. The antiserum was judged to be specific for PR from normal and malignant human tissues as determined by sedimentation shift on sucrose gradients, immunoprecipitation studies, protein blotting, and fluorographic analysis using photolabelled samples. Comparison of protein blots probed with this polyclonal antiserum or with a recently obtained monoclonal antibody to human PR indicated that similar PR structures were recognized in rabbit and human samples by both antisera. Characterization of the polyclonal antiserum has demonstrated its suitability for investigating the immunolocalization or PR in normal and malignant human tissues as well as the receptor structure detected on protein blots.

Type Journal
ISBN 0263-6484 (Print)
Authors Feil, P. D.;Clarke, C. L.;Satyaswaroop, P. G. :
Published Date 1989-01-01
Published Volume 7
Published Issue 2
Published Pages 139-46
Status Published in-print
URL link to publisher's version