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Bacterial Sortase Substrate III, Abz/DNP (TFA)
  • 品牌:Chemstan
  • 产地:中国
  • 货号:CS-P1883A
  • 价格: ¥1750/支
  • 发布日期: 2020-11-25
  • 更新日期: 2025-09-22
产品详请
产地 中国
品牌 Chemstan
货号 CS-P1883A
用途 分析检测
包装规格 1mg
纯度 99%%
CAS编号
是否进口
Description

Bacterial Sortase Substrate III, Abz/DNP TFA is an internally quenched fluorescent peptide substrate. Staphylococcus aureus transpeptidase sortase A (SrtA) reacts with its native substrate Bacterial Sortase Substrate III, Abz/DNP, cleaving it and catalyzing the formation of an amide bond between the carboxyl group of threonine and the amino group of cell-wall crossbridges. Cleavage of this substrate can be monitored at Ex/Em=320 nm/420 nm.

Molecular Weight

1042.02

Formula

C??H??N??F?O??

Sequence

Abz-Leu-Pro-Glu-Thr-Gly-{Lys(Dnp)}-NH2

Sequence Shortening

Abz-LPETG-K(Dnp)-NH2

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Powder-80°C2 years-20°C1 yearIn solvent-80°C6 months-20°C1 month

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:

 ContentsAssign valueAcidic amino acidAsp (D), Glu (E), and the C-terminal -COOH.-1Basic amino acidArg (R), Lys (K), His (H), and the N-terminal -NH2+1Neutral amino acidGly (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 peptideDetailsNegative (<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.

References
  • [1]. Zhang J, et al. Antiinfective therapy with a small molecule inhibitor of Staphylococcus aureus sortase. Proc Natl Acad Sci U S A. 2014 Sep 16;111(37):13517-22.


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