Peptide Medix product catalog

Research Catalog · peptide family

Cell-Penetrating & Delivery Peptides — Research Products

14 catalog items

Catalog # Product Type Species Size Price Add to cart
RP20343 Cys-TAT(47-57) Peptides Other species 1 mg $72.00 $85.00
RP30929 FGF Peptides Other species 1 mg $110.00 $130.00
RP20283 GRGDSPC Peptides Other species 25 mg $574.00 $676.00
RP30925 MPG Peptides Other species 1 mg $370.00 $436.00
RP30928 PFV Peptides Other species 1 mg $70.00 $83.00
RP30923 Polyarginine 10R Peptides Other species 1 mg $80.00 $95.00
RP30924 Polyarginine 12R Peptides Other species 1 mg $80.00 $95.00
RP30921 Polyarginine 8R Peptides Other species 1 mg $80.00 $95.00
RP30922 Polyarginine 9R Peptides Other species 1 mg $80.00 $95.00
RP20464 Rabies Virus Glycoprotein Peptides Other species 1 mg $144.00 $170.00
RP20297 RGD Peptides Other species 1 mg $58.00 $69.00
RP20513 SV40 T-Ag-derived NLS peptide Peptides Other species 1 mg $53.00 $63.00
RP20256 TAT peptide Peptides Other species 1 mg $192.00 $226.00
RP30920 TAT(49-57) Peptides Other species 1 mg $100.00 $118.00

All items are supplied for in vitro laboratory research use only — not for human or veterinary use, diagnosis or therapy. Prices are per unit as listed; each catalog number ships with its Certificate of Analysis.

Cell-Penetrating & Delivery Peptides — frequently asked

What is a cell-penetrating peptide?
A short peptide, usually fewer than about 30 residues, reported to cross the plasma membrane and carry attached cargo with it. Most well-studied examples are strongly cationic, including TAT, oligoarginines such as 8R and 9R, and penetratin.
How are these peptides reported to enter cells?
The literature describes both direct translocation across the membrane and several endocytic routes, and studies generally report a mixture rather than one mechanism. The balance is described as depending on concentration, cargo, cell type and incubation temperature.
Are RGD and NLS peptides cell-penetrating?
Not in the same sense. RGD motifs bind integrins at the cell surface and are used for targeting and adhesion work, while nuclear localisation signals direct cargo toward the nucleus after entry. They are catalogued alongside CPPs because they serve related delivery and targeting roles.