2. Anti-infection
  3. Bacterial
  4. Competence-Stimulating Peptide-2 (CSP-2)

Competence-Stimulating Peptide-2 (CSP-2) 

Cat. No.: HY-P2522 Purity: 99.74%
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Competence-Stimulating Peptide-2 (CSP-2) is a quorum sensing signal peptide produced by Streptococcus pneumoniae. ComD2 is a compatible receptor of Competence-Stimulating Peptide-2 (CSP-2) with an EC50 value of 50.7 nM.

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

Custom Peptide Synthesis

Competence-Stimulating Peptide-2 (CSP-2) Chemical Structure

Competence-Stimulating Peptide-2 (CSP-2) Chemical Structure

CAS No. : 1174553-84-4

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10 mg USD 250 In-stock
25 mg USD 550 In-stock
50 mg USD 950 In-stock
100 mg USD 1500 In-stock
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This product is a controlled substance and not for sale in your territory.

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Based on 1 publication(s) in Google Scholar

Competence-Stimulating Peptide-2 (CSP-2) Related Antibodies

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Description

Competence-Stimulating Peptide-2 (CSP-2) is a quorum sensing signal peptide produced by Streptococcus pneumoniae. ComD2 is a compatible receptor of Competence-Stimulating Peptide-2 (CSP-2) with an EC50 value of 50.7 nM[1].

Molecular Weight

2178.69

Formula

C101H172N28O23S
CAS No.
Appearance

Solid

Color

White to off-white

Sequence Shortening

EMRISRIILDFLFLRKK
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

Stored under nitrogen, away from moisture

Powder -80°C 2 years
-20°C 1 year

*In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen, away from moisture)

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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Competence-Stimulating Peptide-2 (CSP-2) 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:

Competence-Stimulating Peptide-2 (CSP-2)1174553-84-4BacterialQuorumsensingsignalpeptideComD2Inhibitorinhibitorinhibit

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