L-蛋氨酸亚砜酰亚胺

CH₃S(O)(=NH)CH₂CH₂CH(NH₂)CO₂H

180.23

6175446

MFCD00002621

24278555

NA.32

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。

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 NH₃ production 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.

300

>210 ℃ (dec.) (lit.)

CS(=N)(=O)CC[C@H](N)C(O)=O

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

SXTAYKAGBXMACB-DPVSGNNYSA-N

250, 500 mg in poly bottle
1, 5 g in poly bottle

GHS07

Warning

H315 - H319 - H335

P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Respiratory system

11 - Combustible Solids

WGK 3

dust mask type N95 (US), Eyeshields, Gloves