EB1 peptide
Based on 1 Customer Validation
EB1 peptide (Penetrating analog) is an endosomolytic agent and siRNA delivery agent. EB1 peptide forms an amphipathic alpha helix upon protonation in early-late endosomes, drives endosomal membrane permeabilization, and enables endocytosed siRNA escape into the cytosol. EB1 peptide facilitates biologically active siRNA cellular uptake and targeted gene silencing. EB1 peptide forms complexes with siRNA. EB1 peptide can be used for drug delivery research.
For research use only. We do not sell to patients.
- Purity: 99.02%
- CAS No.: 952754-66-4
- Formula: C150H236N46O26
- Molecular Weight:3099.78
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Storage:
Sealed storage, away from moisture.
Powder -80°C, 2 years , -20°C, 1 year* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Biological Activity
EB1 peptide (10:1-25:1 molar ratio of EB1 peptide: siRNA; 1 h) delivers significantly more siRNA into HeLa cells at low molar ratios, with 10-fold higher uptake at 10:1 and 2.5-fold higher uptake at 25:1 compared to Penetratin (HY-P2529)[1].
EB1 peptide (25:1 molar ratio of EB1 peptide: siRNA; 36 h) delivers biologically active siRNA to transiently transfected HeLa cells, significantly reducing luciferase expression to ~50% of control at 100 nM siRNA in both serum-free and serum-containing conditions, and to ~70% of control at 10 nM siRNA in serum-free conditions[1].
EB1 peptide (25:1 molar ratio of EB1 peptide: siRNA; 48 h) delivers biologically active siRNA to stably transfected HepG2 cells when preincubated in a large volume, significantly reducing luciferase expression to ~65% of control at 100 nM siRNA after 48 h[1].
EB1 peptide (25:1 molar ratio of EB1 peptide: siRNA; 36 h) promotes more effective endosomal escape of siRNA in transiently transfected HeLa cells than HA2-penetratin-augmented Penetratin, resulting in greater luciferase gene silencing at a 25:1 peptide: siRNA ratio after 36 h[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 952754-66-4
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Appearance Solid
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Molecular Weight 3099.78
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Formula C150H236N46O26
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Color White to off-white
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Synonyms
Penetrating analog
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Sequence
Leu-Ile-Arg-Leu-Trp-Ser-His-Leu-Ile-His-Ile-Trp-Phe-Gln-Asn-Arg-Arg-Leu-Lys-Trp-Lys-Lys-Lys-NH2
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Sequence Shortening
LIRLWSHLIHIWFQNRRLKWKKK-NH2
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Sealed storage, away from moisture
Powder -80°C 2 years -20°C 1 year * In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Purity & Documentation
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Data Sheet (261 KB)
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SDS (254 KB)
- English - EN (254 KB)
- Français - FR (254 KB)
- Deutsch - DE (254 KB)
- Norwegian - NO (254 KB)
- Español - ES (254 KB)
- Swedish - SV (254 KB)
- Italian - IT (254 KB)
- Portuguese - PT (254 KB)
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Handling Instructions (2659 KB)
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)