半岛bd体育手机客户端 说明
应用
L-甲硫氨酸亚砜亚胺已被用作谷氨酰胺合成酶(GS)活性的一种有效抑制剂。
包装
250, 500 mg in poly bottle
1, 5 g in poly bottle
生化/生理作用
As a potent inhibitor of glutamine synthetase activity (GS), this reagent has widely been used as a selection agent for plasmid integration in Chinese hamster ovary (CHO) and other mammalian cell lines. The growing demand for high yield cell banks for production of recombinant proteins for therapeutics has resulted in two major systems for selection of stable and active clones, Methotrexate selection of dihydrofolate reductase (DHFR) overexpressing cells and MSX selection of glutamine synthetase overexpressing cells. Cells are grown in the absence of glutamine in the media and inhibition of the endogenous activity of glutamine synthetase results in cell death for cells lacking overexpression. The MSX-glutamine synthetase selection mechanism provides benefits over that of the Methotrexate-DHFR system in that it typically requires a single amplification step and results in significant reduction of time to produce high stability, highly amplified clones. L-Methionine sulfoximine (MSX) enhances NH3production in seedling leaves wheat, barley, corn and sorghum plants by inhibiting GS activity. MSX increases ornithine decarboxylase activity and decreases the survival rate in a model of transient cerebral ischemia.
基本信息
| 线性分子式 | CH3S(O)(=NH)CH2CH2CH(NH2)CO2H |
| 分子量 | 180.23 |
| Beilstein | 6175446 |
| MDL编号 | MFCD00002621 |
| PubChem化学物质编号 | 24278555 |
| NACRES | NA.32 |
半岛bd体育手机客户端 性质
| 质量水平 | 300 |
| mp | >210 ℃ (dec.) (lit.) |
| SMILES string | CS(=N)(=O)CC[C@H](N)C(O)=O |
| InChI | 1S/C5H12N2O3S/c1-11(7,10)3-2-4(6)5(8)9/h4,7H,2-3,6H2,1H3,(H,8,9)/t4-,11?/m0/s1 |
| InChI key | SXTAYKAGBXMACB-DPVSGNNYSA-N |
安全信息
| 象形图 |  |
| 警示用语： | Warning |
| 危险声明 | H315 - H319 - H335 |
| 预防措施声明 | P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338 |
| 危险分类 | Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3 |
| 靶器官 | Respiratory system |
| 储存分类代码 | 11 - Combustible Solids |
| WGK | WGK 3 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
| 个人防护装备 | dust mask type N95 (US), Eyeshields, Gloves |
Sigma-Aldrich
m.cnreagent.com
