Cys(Npys)-(Arg)9

Cat. No.: HY-P4087: FAQs
Data Sheet Handling Instructions

Molarity Calculator

Cys(Npys)-(Arg)9 is a cell penetrating peptide. Cys(Npys)-(Arg)9 is comprised of 9 D-Arginine residues and an activated cysteine residue C(Npys). Cys(Npys)-(Arg)9 can be used as a carrier peptide applicable in conjugation and cell permable studies.

For research use only. We do not sell to patients.

Custom Peptide Synthesis

Cys(Npys)-(Arg)9 Chemical Structure

CAS No. : 1417221-06-7

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Purity & Documentation
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Description

Molecular Weight

1679.99

Formula

C₆₂H₁₁₈N₄₀O₁₂S₂

CAS No.

1417221-06-7

Sequence

Cys(Nyps)-Arg-Arg-Arg-Arg-Arg-Arg-Arg-Arg-Arg-NH2

Sequence Shortening

C(Npys)RRRRRRRRR-NH2

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

Solvent & Solubility

In Vitro:

H₂O

Peptide Solubility and Storage Guidelines:

1. Calculate the length of the peptide.

2. Calculate the overall charge of the entire peptide according to the following table:

	Contents	Assign value
Acidic amino acid	Asp (D), Glu (E), and the C-terminal -COOH.	-1
Basic amino acid	Arg (R), Lys (K), His (H), and the N-terminal -NH₂	+1
Neutral amino acid	Gly (G), Ala (A), Leu (L), Ile (I), Val (V), Cys (C), Met (M), Thr (T), Ser (S), Phe (F), Tyr (Y), Trp (W), Pro (P), Asn (N), Gln (Q)	0

3. Recommended solution:

Overall charge of peptide	Details
Negative (<0)	1. Try to dissolve the peptide in water first. 2. If water fails, add NH₄OH (<50 μL). 3. If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide.
Positive (>0)	1. Try to dissolve the peptide in water first. 2. If water fails, try dissolving the peptide in a 10%-30% acetic acid solution. 3. If the peptide still does not dissolve, try dissolving the peptide in a small amount of DMSO.
Zero (=0)	1. Try to dissolve the peptide in organic solvent (acetonitrile, methanol, etc.) first. 2. For very hydrophobic peptides, try dissolving the peptide in a small amount of DMSO, and then dilute the solution with water to the desired concentration.

Purity & Documentation

Handling Instructions (2659 KB)

References

[1]. Bilichak A, et al. Intracellular delivery of fluorescent protein into viable wheat microspores using cationic peptides. Front Plant Sci. 2015 Aug 28;6:666. [Content Brief]

Cys(Npys)-(Arg)9 Related Classifications

Others

Molarity Calculator
Dilution Calculator

The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass		Concentration		Volume		Molecular Weight *
	=		×		×

The dilution calculator equation

Concentration _(start) × Volume _(start) = Concentration _(final) × Volume _(final)

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

Concentration _(start)	×	Volume _(start)	=	Concentration _(final)	×	Volume _(final)
	×		=		×
C1		V1		C2		V2

Help & FAQs

Do most proteins show cross-species activity?
Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Cys(Npys)-(Arg)91417221-06-7Otherscell penetrating peptideNpysArgconjugationInhibitorinhibitorinhibit

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