ELISA, Immunogen, SDS-PAGE, WB, Bioactivity testing in progress
种属
Homo sapiens (Human)
性质
Recombinant
内毒素水平
Please contact with the lab for this information.
纯度
>90% as determined by SDS-PAGE.
预测分子量
32.75 kDa
状态
Lyophilized
保存溶液
Lyophilized from a solution in PBS pH 7.4, 1 mM EDTA, 4% Trehalose, 1% Mannitol.
Please refer to the specific buffer information in the hardcopy of datasheet or the lot-specific COA.
重悬
Reconstitute in sterile water for a stock solution. A copy of datasheet will be provided with the products, please refer to it for details.
运输
In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise.
稳定性和存储
Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8°C for frequent use. Store at -20 to -80°C for twelve months from the date of receipt.
别名
Amino acid transport system xc-, Calcium channel blocker resistance protein CCBR1, Cystine/glutamate transporter, SLC7A11, Solute carrier family 7 member 11, xCT
背景
Cystine/glutamate transporter is a ~55 kDa protein. Heterodimer with SLC3A2, that functions as an antiporter by mediating the exchange of extracellular anionic L-cystine and intracellular L-glutamate across the cellular plasma membrane. Provides L-cystine for the maintenance of the redox balance between extracellular L-cystine and L-cysteine and for the maintenance of the intracellular levels of glutathione that is essential for cells protection from oxidative stress. The transport is sodium-independent, electroneutral with a stoichiometry of 1:1, and is drove by the high intracellular concentration of L-glutamate and the intracellular reduction of L-cystine. Acts as an inhibitor of ferroptosis by mediating the import of L-kynurenine leading to anti-ferroptotic signaling propagation required to maintain L-cystine and glutathione homeostasis. Also inhibits ferroptosis by acting as an atypical proton transporter that mediates a slow proton efflux from lysosomes via cystine and glutamate flux.
1. Bridges, CC. et al. (2001) Investigative ophthalmology & visual science 42, 47-54. PMID: 11133847
2. Bassi, MT. et al. (2001) Pflugers Archiv : European journal of physiology 442, 286-96. PMID: 11417227
3. Jiménez-Vidal, M. et al. (2004) The Journal of biological chemistry 279, 11214-21. PMID: 14722095
4. Gasol, E. et al. (2004) The Journal of biological chemistry 279, 31228-36. PMID: 15151999
