A novel method for specific visualisation of serum albumin in polyacrylamide gels by iodine staining

Abstract Bovine serum, bovine serum albumins (delipidated or globulin free or Fraction V), rabbit serum, rabbit serum albumin, Atlantic salmon serum, purified Atlantic salmon serum albumin, human plasma α 2 ‐macroglobulin, hemocyanin, trypsin inhibitor, bovine transferrin and bovine lactoferrin were...

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Bibliographic Details
Published in:ELECTROPHORESIS
Main Authors: Lee, Kuo‐Kau, Ellis, Anthony E.
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1991
Subjects:
Online Access:http://dx.doi.org/10.1002/elps.1150120513
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Felps.1150120513
https://onlinelibrary.wiley.com/doi/full/10.1002/elps.1150120513
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Summary:Abstract Bovine serum, bovine serum albumins (delipidated or globulin free or Fraction V), rabbit serum, rabbit serum albumin, Atlantic salmon serum, purified Atlantic salmon serum albumin, human plasma α 2 ‐macroglobulin, hemocyanin, trypsin inhibitor, bovine transferrin and bovine lactoferrin were examined by a novel method for specific visualisation of albumins. In native polyacrylamide gel electrophoresis the albumins were visualised by iodine staining as a transparent spot against a brown background whilst the other proteins could not be visualised. It is suggested that the brown background was due to penetration of the gel by iodine while the chemical binding of iodine by albumin produced a decolourisation reaction. This novel method provides a fast and simple approach to identifying serum albumin in polyacrylamide gels.