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Merck

SAE0091

Sigma-Aldrich

溶葡球菌酶 来源于溶葡萄球菌

free of DNA contaminants, ≥500 units/mg protein, lyophilized powder, suitable for Microbiome research

别名:

溶葡球菌酶 来源于溶葡萄球菌, 甘氨酰-甘氨酸内肽酶

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About This Item

CAS号:
MDL號碼:
分類程式碼代碼:
12352202
NACRES:
NA.54

product name

溶葡球菌酶 来源于溶葡萄球菌, free of DNA contaminants, suitable for Microbiome research, lyophilized powder, ≥500 units/mg protein

生物源

microbial (Staphylococcus staphylotyticus)

形狀

lyophilized powder

比活性

≥500 units/mg protein

分子量

27 kDa

特點

DNA free

運輸包裝

wet ice

儲存溫度

−20°C

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應用

从葡萄球菌SAE0091中纯化的细胞外溶葡萄球菌素已经过严格的质量控制测试,以确保通过35个循环对16S和18S rDNA(使用通用引物对)进行PCR扩增时,不存在可检测水平的污染DNA。
溶葡萄球菌酶是从溶葡萄球菌的细菌培养物中分离出的锌金属酶。它对其他葡萄球菌(包括金黄色葡萄球菌)具有特异性裂解作用。1,2溶葡萄球菌素具有
己糖胺酶、酰胺酶和内肽酶活性。它裂解细胞壁中的聚甘氨酸交联,导致葡萄球菌物种的细胞裂解,但不导致其他细菌属的细胞裂解。[Pharmaceuticals 2010, 3(4), 1139-1161]
溶葡萄球菌素是一条包含246个氨基酸的多肽链,分子量为26,926 Da,等电点为9.5,(5),最适pH值为7.5。(6)

生化/生理作用

溶葡萄球菌素是一种分子量约为25 kDa的锌内肽酶。由于溶葡萄球菌酶能裂解 葡萄球菌 类细胞壁肽聚糖层中的聚甘氨酸交联键,它已被发现可用于细胞裂解,并具有潜在的抗菌治疗作用。活性的最优pH值:~7.5。
溶葡萄球菌素是一种分子量约为25 kDa的锌内肽酶。 由于溶葡萄球菌酶能裂解 葡萄球菌 类细胞壁肽聚糖层中的聚甘氨酸交联键,它已被发现可用于细胞裂解,并具有潜在的抗菌治疗作用。
活性最佳pH:约 7.5

單位定義

一个单位在25℃和pH 7.5条件下,在6.0 ml反应混合物中可使金黄色葡萄球菌细胞混悬液的浊度(A620)在10分钟内由0.250降至0.125。

外觀

以冻干粉形式提供,其中含有50-70%的蛋白质,其余主要为NaCl。

象形圖

Health hazard

訊號詞

Danger

危險聲明

防範說明

危險分類

Resp. Sens. 1

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


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Judy J J Ou et al.
Frontiers in cellular and infection microbiology, 6, 187-187 (2017-01-14)
Background:Staphylococcus aureus (S. aureus) small colony variants (SCVs) can survive within the host intracellular milieu and are associated with chronic relapsing infections. However, it is unknown whether host invasion rates and immune responses differ between SCVs and their wild-type counterparts.
Caroline Meyer Olesen et al.
Microorganisms, 9(7) (2021-08-08)
Investigation of changes in the skin microbiome following treatment of atopic dermatitis (AD) with dupilumab may provide valuable insights into the skin microbiome as a therapeutic target. The aim of this study is to assess changes in the AD skin
Ing-Marie Jonsson et al.
PloS one, 5(12), e14209-e14209 (2010-12-15)
Ecs is an ATP-binding cassette (ABC) transporter present in aerobic and facultative anaerobic gram-positive Firmicutes. Inactivation of Bacillus subtilis Ecs causes pleiotropic changes in the bacterial phenotype including inhibition of intramembrane proteolysis. The molecule(s) transported by Ecs is (are) still
Jianjun Miao et al.
Biomaterials, 32(36), 9557-9567 (2011-10-01)
With the emergence of "super bacteria" that are resistant to antibiotics, e.g., methicillin-resistant Staphylococcus aureus, novel antimicrobial therapies are needed to prevent associated hospitalizations and deaths. Bacteriophages and bacteria use cell lytic enzymes to kill host or competing bacteria, respectively
T Baba et al.
The EMBO journal, 15(18), 4789-4797 (1996-09-16)
Microbial organisms secrete antibiotics that cause the selective destruction of specific target cells. Although the mode of action is known for many antibiotics, the mechanisms by which these molecules are directed specifically to their target cells hitherto have not been

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