Cys(Npys)-(D-Arg)9

This is a peptide composed of 9 D-Arginine residues and an activated cysteine residue C(Npys), wherein Npys is 3-Nitro-2-pyridinesulfenyl group protects cysteine. This kind of modification has been used to render this peptide as a carrier peptide applicable in conjugation and cell permable studies. The S(Npys) group of this cysteine-containing 9R is capable of reacting selectively with the free thiol group of another cysteine-containing peptide to form an unsymmetrical disulfide bond.

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CAT#	GR1108
M.W/Mr.	1680.1
Sequence	C(Npys)-D-Arg-D-Arg-D-Arg-D-Arg-D-Arg-D-Arg-D-Arg-D-Arg-D-Arg-NH2

CAT#	Product Name	Inquiry
GR1106	(Arg)9, TAMRA-labeled	Inquiry
GR1103	(Arg)9W	Inquiry
GR1105	(Arg)9, FAM-labeled	Inquiry
GR1104	(Arg)9 biotin labeled	Inquiry
GR1107	Cys(Npys)-(Arg)9	Inquiry

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Storage	-20°C
Solubility	Soluble in water for a solution up to 3 mg/ml, otherwise acetonitrile is recommend. Avoid repeated freezing and thawing.