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EXP001584

Paper

Synthesis, cellular uptake and HIV-1 Tat-dependent trans-activation inhibition activity of oligonucleotide analogues disulphide-conjugated to cell-penetrating peptides (2005)

Peptide

Transportan

Sequence: GWTLNSAGYLLGKINLKALAALAKKIL

RNA

antisense oligonucleotide analogue (anti-TAR)

All experiment fields

Experiment Id EXP001584
Paper Synthesis, cellular uptake and HIV-1 Tat-dependent trans-activation inhibition activity of oligonucl
Peptide Transportan
Delivery Success Class no
In Vivo Flag no
Uptake Confirmed yes
Label Confidence high
In Vitro Functional Effect no
Endosomal Escape Evidence no
Peptide Concentration 2.5 µM conjugate (5 h)
Rna Concentration 2.5 µM conjugate (5 h)
Mixing Ratio Covalent 1:1 peptide:oligo (disulphide)
Formulation Format Disulphide-linked peptide–oligonucleotide conjugate (peptide has terminal Cys; oligo has 5' C6-thiol; 3' fluorescein label).
Formulation Components Transportan–oligo B (conjugate 13)
Size Nm
Zeta Mv
Model Scope in_vitro
Model Type in vitro
Cell Lines Or Primary Cells Human foreskin fibroblasts (uptake localization)
Animal Model
Administration Route
Output Type Uptake/localization (confocal microscopy)
Output Value Improved uptake vs HeLa; punctate cytosolic distribution with some membrane association; no nuclear uptake
Output Units
Output Notes Across CPP–oligo conjugates, fluorescence remained confined to cytosolic vesicles with no nuclear localization (consistent with endosomal entrapment).
Toxicity Notes
Curation Notes