Cys(Npys)-R9 Cell-Penetrating Peptide

Product Name
Cys(Npys)-R9 Cell-Penetrating Peptide
Product Quantity
4 mg
Purity
>95%
Catalog Number
LT8723
Peptide Type
Arginine-rich cell-penetrating peptide
Sequence
C(Npys)-RRRRRRRRR-NH2
Cys-Asn-Pro-Tyr-Ser-Arg-Arg-Arg-Arg-Arg-Arg-Arg-Arg-Arg-Asn-His
Published / Parent Sequence
RRRRRRRRR
Product Description

Cys(Npys)-R9 Cell-Penetrating Peptide is an arginine-rich cell-penetrating peptide based on nona-arginine (R9), supplied with an N-terminal cysteine protected as an Npys derivative and a C-terminal amide.

Arginine-Rich Cell-Penetrating Peptides

Short oligomers of arginine are widely used as model CPPs. Their guanidinium-rich side chains interact strongly with anionic cell-surface molecules and membrane components, and they are commonly investigated for delivery of macromolecular or nanoparticle cargos.

Cys(Npys) Functional Group

The Npys-protected cysteine is a chemically activated thiol configuration that can be used in disulfide-exchange strategies. This allows an R9 CPP module to be coupled to a second thiol-containing peptide or cargo through a reducible disulfide linkage.

  • CPP-cargo conjugation
  • Reducible disulfide delivery constructs
  • Cellular uptake studies
  • Peptide translocation research

References

Futaki S, et al. Stearylated arginine-rich peptides: a new class of transfection systems. Bioconjug Chem. 2001.
doi: 10.1021/bc015508l.
Public source / publication

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Research Use Only. Not for human, diagnostic, clinical, or therapeutic use.

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