Abstract
The nonionic detergent Triton X-100 binds in varying proportions to specific ribosomal proteins and decreases the relative mobility of these proteins during electrophoresis. When Triton X-100 binds to these ribosomal proteins in the first-dimension gel, the resolution of the ribosomal proteins in the second-dimension gel pattern is greatly improved. Maximum binding of Triton X-100 to the ribosomal proteins is dependent on pH, urea concentration, and the complete reduction of cysteine and methionine. After first-dimension electrophoresis the Triton X-100 in the gel does not interfere with the binding of sodium dodecyl sulfate to the ribosomal proteins and the molecular weight of these proteins can still be estimated directly from the second-dimension slab gel.
Published Version
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