Anaspec/HCV蛋白酶FRET底物(RET S1)/50 mg/AS-22991-50
商品编号:
AS-22991-50
品牌:
Anaspec
市场价:
¥276380.00
美元价:
138190.00
产品分类:
破碎混匀
公司分类:
Crushing_blending
联系Q Q:
3392242852
电话号码:
4000-520-616
电子邮箱:
info@ebiomall.com
商品介绍
Product Name | HCV Protease FRET Substrate (RET S1)Ac - DE - D(Edans) - EE - Abu - ψ - [COO] - AS - K(Dabcyl) - NH2 |
Size | 50 mg |
Catalog # | AS-22991-50 |
US$ | $13819 |
Purity | % Peak Area By HPLC ≥ 95% |
This peptide is a HCV protease substrate incorporating an ester bond between residues P1 and P1. Due to ready transesterification of the scissile bond to the acyl-enzyme intermediate, this substrate shows very high kcat/Km values, enabling detection of activity with subnanomolar nonstructural protein 3 (NS3 protease) concentrations. It is widely used for the continuous assay of NS3 protease activity. Substrate cleavage is proportional to the enzyme concentration with a detection limit for NS3 between 1 nM and 250 pM. Upon cleavage of this substrate, fluorescence can be monitored at Abs/Em = 355/500 nm. Click here to see a flyer. | |
Detailed Information | DatasheetMaterial Safety Data Sheets (MSDS) |
Storage | -20°C |
References | Lin, C. et al. J. Biol. Chem. 10, 1074 (2004); Kakiuchi, N. et al. J. Virol. Methods 80, 77 (1999); Liu, Y. et al. Anal. Biochem. 267, 331 (1999); Taliani, M. et al. Anal. Biochem. 240, 60 (1996). |
Molecular Weight | 1548.6 |
Ac-DE-D(Edans)-EE-Abu-ψ-[COO]-AS-K(Dabcyl)-NH2 | |
Sequence(Three-Letter Code) | Ac - Asp - Glu - Asp(EDANS) - Glu - Glu - Abu - ψ - [COO] - Ala - Ser - Lys(DABCYL) - NH2 |
品牌介绍
Anaspec阳离子抗菌肽是所有物种先天防御的重要组成部分。在许多生物中,包括真菌,昆虫,两栖动物和人类中,已经鉴定出100多种这些肽。这些疏水性和两亲性肽表现出抗生素,杀真菌,溶血,杀病毒和杀肿瘤活性。基于它们的结构特性,这些抗菌肽可分为三类:螺旋状肽,含有一个至几个二硫键的肽以及富含某些氨基酸(例如脯氨酸或色氨酸)的肽。这些肽大多数具有一些共同的特征,例如它们的低分子量(2-5 kDa),存在多个赖氨酸和精氨酸残基以及两亲性质。尽管尚不清楚它们杀死细菌的确切机制,但已表明导致膜渗透的肽-脂相互作用在其活性中起作用。抗生素肽的实例包括洋甘菊素,其由皮肤的皮肤分泌。非洲爪蟾 ; 人嗜中性粒细胞的防御素和人唾液中的组蛋白。天蚕素是由昆虫在感染条件下产生的。天蚕素A,B和D是紧密的同源物,由天蚕素蛾的35中发现的35-39个残基组成。
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