Accurate MW determination and positive control on Western blots!
accurate molecular
weight estimations
positive control for
Western blots
gels and blots can be
compared
The new Strep-tag Protein Ladder simplifies the comparison of Coomassie stained gels with corresponding Western blots. Thus, Strep-tag fusion proteins can be located accurately in complex band patterns on Coomassie gels.
The Strep-tag Protein Ladder is a mixture of six recombinant, highly purified Strep-tag proteins employed for precise sizing of proteins by SDS-PAGE. The proteins resolve into clearly identifiable sharp and evenly stained bands from 15 to 100 kDa when analyzed on an SDS gel and stained with Coomassie Blue.
As each protein contains the Strep-tag II sequence which is detected by Strep-Tactin conjugates or Strep-tag specific antibodies, the ladder can also be used for MW determinations on Western blots and serves as a positive control for the various detection systems.
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