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生物源
Staphylococcus aureus
品質等級
形狀
lyophilized powder
比活性
≥10,000 units/mg protein
包含
sodium citrate buffer as balance
成份
Protein, ~60% Lowry
溶解度
H2O: soluble 0.49-0.51 mg/mL
UniProt登錄號
儲存溫度
2-8°C
基因資訊
Staphylococcus aureus ... SAOUHSC_01121(3920722)
一般說明
α-溶血素是一种成孔细胞毒素,它是大多数致病性金黄色葡萄球菌菌株分泌的一种细胞外蛋白。它是以水溶性单体的形式分泌,是一种小型β桶状蛋白。
應用
α-来自金黄色葡萄球菌的溶血素已被用于:
- 作为电解质溶液的一种成分,用于通过电生理测量测试脂双层中的孔形成
- 测试其在骨髓基质细胞(BMSCs)中的成骨抑制作用
- 制备用于 Biacore 和表面等离子体共振的α溶血素分子印迹聚合物 (MIP)
α-溶血素被用于一项研究,用于测试乳制品大肠杆菌的外排泵和溶血素活性。它还用于测试其对苯扎氯铵的适应性以及环丙沙星对生物膜形成的影响。
生化/生理作用
α-溶血素是选择性溶血的,单体形式与膜结合,结合不需要特异性受体。在与生物膜和/或人造膜结合后,它会发生自身低聚化,从而产生代表跨膜孔的环状结构(六聚体),这些孔对离子和小代谢物是通透的。它对兔红细胞有明显的偏好。α-溶血素刺激细胞磷脂酶并诱导 Ca2+流入。它导致内皮屏障的膜破坏和细胞质成分的泄漏和细胞的渗透裂解。α-溶血素与脓毒症的发病机制有关。
包裝
包装尺寸基于蛋白质含量
單位定義
一个溶血单元是在 37°C 下 30 分钟,然后在 4°C 下冷藏 30 分钟后,悬浮在 pH 7.0 磷酸盐缓冲盐水中含1% 牛血清白蛋白的 1% 兔红细胞有50%溶解。
訊號詞
Warning
危險聲明
危險分類
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 2
標靶器官
Lungs,Blood
儲存類別代碼
11 - Combustible Solids
水污染物質分類(WGK)
WGK 3
閃點(°F)
Not applicable
閃點(°C)
Not applicable
個人防護裝備
Eyeshields, Gloves, type N95 (US)
其他客户在看
Biophysical journal, 120(9), 1537-1541 (2021-02-23)
The use of chaotropic reagents is common in biophysical characterization of biomolecules. When the study involves transmembrane protein channels, the stability of the protein channel and supporting bilayer membrane must be considered. In this letter, we show that planar bilayers
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Sensors and Actuators B, Chemical, 205 (205)
Cellular signalling, 1(4), 387-393 (1989-01-01)
Staphylococcal alpha-toxin at subcytotoxic concentrations stimulated phosphatidylinositol turnover and arachidonic acid release in undifferentiated cultures of pheochromocytoma PC12 cells. Stimulation of phospholipase A2 but not C was dependent on extracellular calcium. Addition of staphylococcal alpha-toxin to PC12 cells caused a
Traffic (Copenhagen, Denmark), 19(6), 436-445 (2018-03-16)
Phosphoinositides (PtdIns) play important roles in exocytosis and are thought to regulate secretory granule docking by co-clustering with the SNARE protein syntaxin to form a docking receptor in the plasma membrane. Here we tested this idea by high-resolution total internal
Frontiers in cellular and infection microbiology, 2, 12-12 (2012-08-25)
One key aspect of the virulence of Staphylococcus aureus lies in its ability to target the host cell membrane with a large number of membrane-damaging toxins and peptides. In this review, we describe the hemolysins, the bi-component leukocidins (which include
相关内容
Cell lysis and protein extraction methods overview various techniques, from detergent solubilization to mechanical disruption, supporting research needs.
常用的细胞裂解和蛋白质提取方法包括表面活性剂溶解法、冻融裂解法、渗透压休克法、超声破碎法、酶解细胞裂解法以及机械破碎技术(如Dounce、Polytron、研钵和研棒均质化)。
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