五月婷网站,av先锋丝袜天堂,看全色黄大色大片免费久久怂,中国人免费观看的视频在线,亚洲国产日本,毛片96视频免费观看

廈門慧嘉生物科技有限公司
初級會員 | 第10年

18906011628

重組溶葡萄球菌素/Lysostaphin

時(shí)間：2016/11/2閱讀：663
分享：

重組溶葡萄球菌素/Lysostaphin

 

SynonymsLysostaphin, EC 3.4.24.75, Glycyl-glycine endopeptidase.
DescriptionLysostaphin, an endopeptidase specific for the cell wall peptidoglycan of staphylococci, is an extremely potent anti-staphylococcal agent. Lysostaphin is used as a research and diagnostic tool. Because it lyses staphylococci efficiently, it is widely used when preparing staphylococcal DNA or other cellular components for genetic and biochemical studies and for the preparation of protoplasts for transformation. Preparation and analysis of bacterial DNA has become a powerful tool used by clinical and other microbiologists in epidemiological studies aimed at tracing sources of infection or bacterial contamination.
The Mw of lysostaphin is 26,921 (Recsei et al, PNAS 1987).
SourceEscherichia Coli.
Physical AppearanceSterile Filtered lyophilized powder.
FormulationThe protein was lyophilized without any additives.
StabilityLysostaphin although stable at 4°C for 6 months, should be stored desiccated below -18°C. 
Please prevent freeze-thaw cycles.

Lysostaphin has optimal stability in the range of pH 4.5, and optimal activity in the range of pH 8. 

For a stock solution it is recommended to work with 10mg/ml lysostaphin in 10mM sodium acetate pH 4.5.

SolubilityIt is recommended to reconstitute the lyophilized Lysostaphin in 20mM sodium acetate, pH 4.5, which can then be further diluted to other aqueous solutions.
Purity96.9% as determined by RP-HPLC.
Biological ActivityDetermined by the decrease in turbidity of a suspension of heat-killed Staphylococcus aureus at pH8.0, 30°C.

For a reaction buffer it is recommended to work with 200mM Tris-HCl pH 8.

Specific ActivityDetermined to be 4,243 units/mg.
Protein contentProtein quantitation was carried out by two independent methods 
1. UV spectroscopy at 280 nm using the absorbency value of 2.02 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (InliGenetics). 
2. Analysis RP-HPLC, using a calibrated solution of Lysostaphin as a Reference Standard.
UsageProspec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

會員登錄

×

請輸入賬號

請輸入密碼

=

請輸驗(yàn)證碼

收藏該商鋪

X
該信息已收藏！
標(biāo)簽：
保存成功

(空格分隔,最多3個(gè),單個(gè)標(biāo)簽最多10個(gè)字符)

常用：

提示

X
您的留言已提交成功！我們將在第一時(shí)間回復(fù)您~
撥打電話
在線留言