产品说明
一般描述
Lactoperoxidase is a major enzyme present in bovine milk and belongs to the peroxidase family. It is present in both plants and animals. The enzyme structure comprises a single polypeptide chain made up of 612 amino acid residues.
应用
Lactoperoxidase from bovine milk has been used as a standard for milk lactoperoxidase to study the role of H2O2 in the inhibition of Staphylococcus aureus growth by Lactococcus garvieae in the presence of lactoperoxidase in raw milk. It has also been used in lactoperoxidase-mediated iodination to prepare radiolabeled peptides.
包装
1, 5 mg in glass bottle
10, 25 mg in poly bottle
生化/生理作用
Lactoperoxidase contributes to the antimicrobial system of milk by inactivating a wide range of micro-organisms. This lactoperoxidase-mediated antimicrobial system is also identified in human secretions such as tear-fluid, saliva, and milk. Lactoperoxidase catalyzes the oxidation of molecules by releasing H2O2. The product exhibits antimicrobial activity.
乳过氧化物酶催化过氧化氢与碘化物的氧化反应生成碘。该活性提供了一种温和的特异性氯胺 T 替代物，用于蛋白质和 DNA 的放射性碘化反应。
单位定义
在25℃、pH 5.5条件下，一个单位可氧化1.0 μmM 2,2′-联氮基-双(3-乙基苯并噻唑啉-6-磺酸)。
分析说明
Lowry法测蛋白。
基本信息
| 酶学委员会(EC)编号 | 1.11.1.7 ( BRENDA | IUBMB ) |
| EC 号 | 232-668-6 |
| MDL编号 | MFCD00131484 |
| NACRES | NA.54 |
产品性质
| 质量水平 | 200 |
| 生物来源 | bovine milk |
| 形式 | lyophilized powder (essentially salt-free) |
| specific activity | ≥200 units/mg protein |
| 吸光度比值 | A412/280 nm 0.7-0.9 |
| UniProt登记号 | P80025 |
| 储存温度 | −20℃ |
| Gene Information | cow ... LPO(280844) |
安全信息
| 象形图 |  |
| 警示用语： | Danger |
| 危险声明 | H317 - H334 |
| 预防措施声明 | P261 - P272 - P280 - P284 - P302 + P352 - P333 + P313 |
| 危险分类 | Resp. Sens. 1 - Skin Sens. 1 |
| 储存分类代码 | 11 - Combustible Solids |
| WGK | WGK 3 |
| 个人防护装备 | Eyeshields, Gloves, type N95 (US) |
Sigma-Aldrich
m.cnreagent.com
