FITC-LC-TAT (47-57

Product Name: FITC-LC-TAT (47-57

Sequence One Letter Code: FITC-LC-YGRKKRRQRRR-NH2

Sequence Three Letter Code: FITC-LC-Tyr-Gly-Arg-Lys-Lys-Arg-Arg-Gln-Arg-Arg-Arg-NH2

Chemical Formula:C91H143N35O19S

Molecular Weight: 2061.4

Purity: ≥ 95%

Form: Lyophilized

Storage Conditions: - 20 °C Protected from light

Source / Species: HIV

Conjugation: Conjugated

Conjugation Type: Fluorescent dyes

Code Nacres: NA.26

Application: FITC-LC-TAT (47–57) is a fluorescently labeled cell-penetrating peptide derived from the HIV-1 TAT protein transduction domain. This arginine-rich sequence supports rapid cellular uptake and membrane translocation, making it a useful model for studying intracellular delivery mechanisms. The FITC fluorophore is attached through a long-chain spacer to improve stability and reduce interference with peptide activity. With fluorescence excitation and emission maxima around 493 and 522 nm, FITC-LC-TAT (47–57) enables direct visualization and quantification of peptide uptake. It is widely used in research on cell-penetrating peptides, cellular delivery, fluorescence imaging, and membrane transport.