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Details of TopicalPdb ID 1371

PRIMARY INFORMATION
ID1371
PMID21297299
Year2011
SequenceGRKKRRQRRRCG
NameTat analog
Length12
N-Terminal ModificationFree
C-Terminal ModificationFree
Linear/ CyclicLinear
ChiralityL
Chemical ModificationNone
Origin of PeptideAnalogue of Tat
Nature of Peptide/CargoCell penetrating peptide
MechanismNot mentioned
Cargo Sequence/StructureSense- 5' AUC CGC GCG AUA GUA CGU ATT 3' Antisense- 5' 6-FAM UAC GUA CUA UCG CGC GGA UTT 3'
Name of cargo
FAM-labeled siRNA
AssayConfocal laser microscopy
EnhancerSkin was shaved
Properties of enhancerHairless skin eases transdermal delivery
Concentration5 µg siRNA+ 32 µg peptide
Incubation time10 hours
Tissue permeability (value with units)Fluorescent signals of siRNA in the Tat applied skin were observed faintly at the stratum corneum in 10 times tape-stripped skin. In 20 times tape-stripped skin siRNA was observed widely and strikingly at the stratum corneum, hair follicle, epidermal and dermal layers.
Tissue SamplePAM212 cells (mouse keratinocytes)
Ex vivo/In vivo/In vitroin vitro
SECONDARY INFORMATION
STRUCTURE
Predicted Structure
SMILESNCC(=O)N[C@@H](CCCNC(=[NH2])N)C(=O)N[C@@H](CCCC[NH3])C
(=O)N[C@@H](CCCC[NH3])C(=O)N[C@@H](CCCNC(=[NH2])N)C(=O)N[C@@H](CCCNC(=[NH2])N)C
(=O)N[C@@H](CCC(=O)N)C(=O)N[C@@H](CCCNC(=[NH2])N)C(=O)N[C@@H](CCCNC
(=[NH2])N)C(=O)N[C@@H](CCCNC(=[NH2])N)C(=O)N[C@@H](CS)C(=O)NCC=O