Back to browse

EXP001797

Paper

Quantitatively determined uptake of cell-penetrating peptides in non-mammalian cells with an evaluation of degradation and antimicrobial effects (2006)

Peptide

MAP (KLAL)

Sequence: Fluo-KLALKLALKALKAALKLA-amide

RNA

All experiment fields

Experiment Id EXP001797
Paper Quantitatively determined uptake of cell-penetrating peptides in non-mammalian cells with an evaluat
Peptide MAP (KLAL)
Delivery Success Class no
In Vivo Flag no
Uptake Confirmed yes
Label Confidence high
In Vitro Functional Effect no
Endosomal Escape Evidence
Peptide Concentration 0.1, 1.0, 10 µM (uptake assays; 1 h)
Rna Concentration
Mixing Ratio
Formulation Format Free fluorescently-labeled CPP (no RNA cargo)
Formulation Components Fluorescein-labeled CPP only; surface-bound peptide quenched/modified by diazotized 2-nitroaniline prior to lysis; uptake quantified by fl-HPLC
Size Nm
Zeta Mv
Model Scope in_vitro
Model Type in vitro
Cell Lines Or Primary Cells Escherichia coli (gram-negative bacteria)
Animal Model
Administration Route
Output Type CPP uptake (fl-HPLC; nmol/mg protein) and degradation profile
Output Value At 10 µM: intact pVEC ~45 nmol/mg protein (highest); all-D-pVEC similar; degraded MAP/penetratin/pVEC ~20 nmol/mg; intact MAP/penetratin much lower.
Output Units
Output Notes Incubation 1 h at 37°C; most peptides degraded except all-D-pVEC. Antimicrobial activity (MIC): E. coli 25 µM for MAP/penetratin/pVEC; B. megaterium 1 µM for MAP/penetratin/pVEC; S. cerevisiae no inhibition at ≤25 µM.
Toxicity Notes Antimicrobial activity (MIC): E. coli 25 µM for MAP/penetratin/pVEC; B. megaterium 1 µM for MAP/penetratin/pVEC; S. cerevisiae no inhibition at ≤25 µM.
Curation Notes