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Anaspec/Angiotensin II Substrate/1 mg/AS-24520
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产品说明
Product NameAngiotensin II SubstrateDRV - pY - IHPF Size1 mg Catalog #AS-24520 US$$244 Purity% Peak Area By HPLC ≥ 95% DescriptionThis is a tyrosine phosphorylated angiotensin II peptide with a substrate sequence specificity for chymase to act. This is an octapeptide hormone that is formed as a result of the action of human heart chymase, a chymotrypsin-like serine protease on the Phe-His bond of Angiotensin I. The ideal susbtrate for human heart chymase should contain this peptide sequence, and has been demonstrated that the Pro-Phe sequence in P2-P1 positions of peptide substrates is highly favored by leukocyte chymotrypsin-like proteinases such as chymases and cathepsin G. Detailed InformationDatasheetMaterial Safety Data Sheets (MSDS) Storage-20°C References 1, Kinoshita A, et al. J Biol Chem 266(29): 19192-19197 (1991).2, Ruzzene, M. et al. Eur. J. Biochem. 211, 289 (1993). Molecular Weight1126.2 Sequence(One-Letter Code)DRV-pY-IHPFSequence(Three-Letter Code)H - Asp - Arg - Val - pTyr - Ile - His - Pro - Phe - OHProduct CitationsCrowe, MC. and Brodbelt, JS. (2004). Infrared multiphoton dissociation (IRMPD) and collisionally activated dissociation of peptides in a quadrupole ion trap with selective IRMPD of phosphopeptides. J. Am. Soc. for Mass Spectrom 15, 1581. doi: 10.1016/j.jasms.2004.07.016.Woods, A. S. et al. J. (2003). Angiotensin II–Acetylcholine noncovalent complexes analyzed with MALDI–Ion mobility–TOF MS. Biomol. Tech 14, 1.

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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