化学品概述
类白色冻干粉,易溶于水,微溶于30%乙醇和丙酮,最适pH值7.8。水溶液中加入5mmol/L Ca2+或二异丙基氟磷酸(DFP)可增加其稳定性。抑制剂有EDTA和十二烷基磺酸钠;激活剂为二价金属离子,Mg2+与Ca2+合用可得到最佳效果。1%水溶液在280nm处吸收系数为11.1。限制消化的平均链长为四核苷酸,酶反应:脱氧核糖核酸═二核苷酸-5'-磷酸+寡聚核苷酸-5'-磷酸。。
基本信息
- 中文名称:
- 中文别名:
- 英文名称:
- 英文别名:
- 分子式:
- 分子量:
- CAS:
- EINECS编号:
- MDL编号:
- 精确质量:
- InChI:
- InChI Key:
- MOL文件:
- PSA:
- LogP:
- FEMA编码:
- COE编码:
理化性质
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外观性质:
solution (clear, colorless);white
- 熔点:
- 沸点:
-
密度:
100 g/mL at 20 °C
- 折射率:
- 比旋光度:
- 闪点:
- 溶解性:
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酸度系数(pKa):
Soluble in 0.15 M sodium chloride (5.0mg/L) clear.
- 相对极性:
- PH值:
- 爆炸极限值(explosive limit):
- 敏感性:
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储存条件:
−20°C
- 检测方法:
- 蒸气压:
-
Merck:
13,2923
- BRN:
- NIST化学物质信息:
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EPA化学物质信息:
http://iaspub.epa.gov/sor_internet/registry/substreg/searchandretrieve/advancedsearch/search.do?search=?search=&searchCriteria(advancedCriteria)=casNumber=9003-98-9
安全信息
- 危化品标志:
- 危化代码:
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安全代码:
23-24/25-22
- 海关编码/HS编码:
- 危化品运输编码:
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WGK Germany:
3
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RTECS:
RF0750000
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TSCA:
Yes
- 危化等级:
- 包装类别:
- 毒理资料:
- 灭火剂:
应用领域
用于生化研究,临床上常用作祛痰药,也可局部用于脓肿、血肿以及鞘内注射治疗脑膜炎。用于从蛋白样品中去除DNA Deoxyribonuclease I from bovine pancreas has been used in a study to investigate a two-dimensional zymogram analysis of nucleases in Bacillus subtilis. Deoxyribonuclease I from bovine pancreas has also been used in a study to investigate the effects of minor and major groove-binding drugs and intercalators on the DNA association of minor groove-binding proteins RecA and deoxyribonuclease I.
制备方法/合成路线
以牛胰为原料,经稀硫酸抽提后由硫酸铵和乙醇分级沉淀得产品。
参考资料
- Endonuclease enzyme that hydrolyzes DNA; produced by the mammalian pancreas. Variably glycosylated, single polypeptide chain with two disulfide bridges; multiple isoforms exist. The human form consists of 260 amino acid residues; mol wt ~37 kDa. Prepn from beef pancreas: M. Kunitz, Science 108, 19 (1948); Baumgarten, Johnson, US 2801956; eidem, US 3042587 (1957, 1962 both to Merck & Co.). Properties of purified DNase I: Price et al., J. Biol. Chem. 244, 917 (1969). Reviews of purification and characterization: M. Laskowski in The Enzymes vol. 4, P. D. Boyer, Ed. (Academic Press, New York, 3rd ed., 1971) pp 289-311; S. Moore, ibid. vol. 14 281-296 (1981); T.-H. Liao, Mol. Cell. Biochem. 34, 15-22 (1981).
- MSDS
图谱
计算化学数据
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疏水参数计算参考值(XlogP):
0
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氢键供体数量 :
2
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氢键受体数量:
6
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可旋转化学键数量:
3
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拓扑分子机型表面积(TPSA) :
93.2
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重原子数量:
19
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形式电荷:
0
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复杂度:
484
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同位素原子数量:
0
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确定原子立构中心数量:
3
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不确定原子立构中心数量:
0
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确定化学键立构中心数量:
0
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不确定化学键立构中心数量:
0
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共价键单元数量:
1