Anaspec/CSP-2,能力刺激肽-2/1mg/AS-63877
市场价:
¥2160.00
美元价:
1080.00
产品分类:
病毒抗原
公司分类:
Virus_antigen
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 | CSP - 2, Competence - Stimulating Peptide - 2EMRISRIILDFLFLRKK |
Size | 1 mg |
Catalog # | AS-63877 |
US$ | $108 |
Purity | % Peak Area By HPLC ≥ 95% |
Genetic transformation in Streptococcus pneumoniae, Streptococcus mitis and Streptococcus oralis is regulated by secreted peptide pheromones named the competence-stimulating peptide (CSP). Different strains and species of these bacteria produce CSP with different primary sequence. They are termed pheromones CSP-1 (EMRLSKFFRDFILQRKK), CSP-2 (EMRISRIILDFLFLRKK), CSP-153 (DKRLPYFFKHLFSNRTK), CSP-612 (ESRLSRLLRDFIFQIKQ), CSP-676 (ERRIPDVIRSLLFQKRK), and CSP-12261 (EIRQTHNIFFNFFKRR). | |
Detailed Information | Material Safety Data Sheets (MSDS) |
Storage | -20°C |
References | Francis, K. et al. Infection Immunity 69, 3350 (2001); Johnsborg, O. et al. Mol. Microbio. 69, 245 (2008). |
Molecular Weight | 2178.7 |
EMRISRIILDFLFLRKK | |
Sequence(Three-Letter Code) | H - Glu - Met - Arg - Ile - Ser - Arg - Ile - Ile - Leu - Asp - Phe - Leu - Phe - Leu - Arg - Lys - Lys - OH |
Product Citations | Coleman, J. et al. (2011). Designed reduction of Streptococcus pneumoniae pathogenicity via synthetic changes in virulence factor codon-pair bias. J Infect Dis doi: 10.1093/infdis/jir010. |
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。
联络我们