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  5. Fluorescent-labeled Peptides Cell-penetrating Peptides
  6. Cys(Npys)-(Arg)9

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.

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Cys(Npys)-(Arg)9 Chemical Structure

Cys(Npys)-(Arg)9 Chemical Structure

CAS No. : 1417221-06-7

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Cys(Npys)-(Arg)9 Related Antibodies

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Description

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[1].

Molecular Weight

1679.99

Formula

C62H118N40O12S2
CAS No.
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
References
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Cys(Npys)-(Arg)9 Related Classifications

  • 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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