Strep-Tactin®XT conjugate

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Strep-Tactin®XT conjugates with fluorescent label to detect Strep-tag®II and Twin-Strep-tag® fusion proteins

Strep-Tactin®XT is a streptavidin variant, which binds to the Strep-tag®II and Twin-Strep-tag® with high affinity and specificity. It is available as conjugate with fluorescent dyes (DY-488, DY-549, DY-649) for fast and directed detection of N-terminally, C-terminally as well as internally tagged Strep-tag®II or Twin-Strep-tag® fusion proteins in applications like ELISA, FACS, immunohistochemistry, and immunocytochemistry.

The absorption/emission maxima of the fluorescent dyes are:

  • DY-488: 493/518 nm
  • DY-549: 550-560/575 nm
  • DY-649: 655/676 nm

Specifications

  • Amount: 100 µl
  • Concentration: 0.5 mg/ml
  • Conjugate: DY-488, DY-549, DY-649
  • Form: Suspension in PBS
  • Possible Application: ELISA, western blot, FACS, Immunofluorescence
  • Specificity: Twin-Strep-Tag®; Strep-tag®II; cross reactivity: biotin

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