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
32.52 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.
Defensin beta 4A is a ~7 kDa protein. Exhibits antimicrobial activity against Gram-negative bacteria and Gram-positive bacteria, with highest activity against Gram-negative bacteria. Antimicrobial activity against P.aruginosa seems to be salt-sensitive and is reduced with high salt concentrations greater than 25 mM. Also exhibits antimicrobial activity against the yeast C.albicans. Permeabilizes C.albicans cell membranes via targeting plasma membrane lipid phosphatidylinositol 4,5-bisphosphate (PIP2), thereby leading to cell fragmentation and cell death. Acts as a ligand for C-C chemokine receptor CCR6.
1. Harder, J. et al. (2000) American journal of respiratory cell and molecular biology 22, 714-21. PMID: 10837369
2. Harder, J. et al. (1997) Nature 387, 861. PMID: 9202117
3. Järvå, M. et al. (2018) Science advances 4, eaat0979. PMID: 30050988
4. Yang, D. et al. (1999) Science (New York, N.Y.) 286, 525-8. PMID: 10521347
5. Röhrl, J. et al. (2010) The Journal of biological chemistry 285, 7028-34. PMID: 20068036
