N-Acetylneuraminic Acid Aldolase from microorganisms
产品价格
| 产品编号 | 品牌 | 纯度规格 | 包装单位 | 单价(元) | 现货 |
| 3168744 | Sigma-Aldrich | lyophilized powder, ≥20 units/mg protein (biuret) | 25 UNITS | 11480 | 请咨询 |
| 3486168 | Ryon | BR，50u/mg | 1KU | 1100 | 请咨询 |
基本信息
| Enzyme Commission (EC) Number【酶学委员会(EC)编号】 | 4.1.3.3 ( BRENDA | IUBMB ) |
| Beilstein | 2697172 |
| MDL number | MFCD00131656 |
| NACRES | NA.32 |
| Application【应用】 | This enzyme is useful for enzymatic determination of N-acetylneuraminic acid and sialic acid when coupled with the related enzymes in clinical analysis. For industrial use, this enzyme is useful for enzymatic synthesis of sialic acid. Used in the Sialic Acid Quantification Kit, SIALIC-Q |
| Physical properties【物理属性】 | Isoelectric point: 4.6 ± 0.1 Michaelis constant: 2.5 x 10‾3M (N-Acetylneuraminic acid) Structure: 3 subunits (approx. 35,000) per mol of enzyme Inhibitors: p-Chloromercuribenzoate, sodium dodecyl sulfact, Hg++, Ag+ Optimum pH: 7.5– 8.0 Optimum temp: 70℃ pH Stability: pH 6.0–9.0 (10℃, 25hr) Thermal stability: Below 65℃ (pH 7.5, 30 min) |
| Unit Definition【单位定义】 | One unit will release 1.0 μmole of pyruvate from NANA per min at pH 7.7 at 37 ℃. |
| Physical form【外形】 | Lyophilized powder containing mannitol and EDTA |
产品性质
| form【形式】 | lyophilized powder |
| Quality Level【质量水平】 | 200 |
| Specific Activity | ≥20 units/mg protein (biuret) |
| mol wt【分子量】 | ~98 kDa |
| storage temp.【储存温度】 | −20℃ |
| packaging【包装】 | 25 units in glass bottle |
安全信息
| Storage Class Code【储存分类代码】 | 12 - Non Combustible Liquids |
| WGK | WGK 3 |
| Personal Protective Equipment【个人防护装备】 | Eyeshields, Gloves, multi-purpose combination respirator cartridge (US) |