Animal-Free IFN-gamma 蛋白, Human (His)

IFN-gamma Protein is a dimeric soluble cytokine. It exerts antibacterial, antiviral and antitumor effects through JAK-STAT, mTOR, MAPK and PI3K/AKT signaling pathways. Animal-Free IFN-gamma Protein, Human (His) is the recombinant human-derived animal-FreeIFN-gamma protein, expressed by E. coli , with C-His labeled tag. The total length of Animal-Free IFN-gamma Protein, Human (His) is 143 a.a., with molecular weight of ~17.7 kDa.

IFN-gamma 是一种二聚体可溶性细胞因子，是II 型干扰素中唯一的成员。IFN-gamma 由免疫细胞T 细胞和NK 细胞产生，通过激活效应免疫细胞和增强抗原呈递，在抗菌、抗病毒和抗肿瘤反应中发挥重要作用。IFN-gamma 通过JAK-STAT 通路与其受体IFNGR1 相互作用后影响基因调控，也可触发mTOR、MAPK 和PI3K/AKT信号通路。IFN-gamma 通过诱导催化蛋白酶体亚基替换为免疫蛋白酶体亚基，在I 类抗原递呈途径中发挥作用。IFN-gamma 通过促进组织蛋白酶B/CTSB、H/CTSH 和L/CTSL 等几个关键分子的表达，上调细胞表面的MHC II 复合物。IFN-gamma 通过影响造血干细胞的发育、静止和分化，参与造血干细胞在发育和稳态条件下的调控。

Measure by its ability to induce cytotoxicity in HT29 cells. The ED₅₀ for this effect is <1 ng/mL. The specific activity of recombinant human IFN gamma is approximately >2 x 10⁶ IU/mg.

Human

E. coli

C-His

P01579 (Q24-Q166)

3458  [NCBI]

MQDPYVKEAENLKKYFNAGHSDVADNGTLFLGILKNWKEESDRKIMQSQIVSFYFKLFKNFKDDQSIQKSVETIKEDMNVKFFNSNKKKRDDFEKLTNYSVTDLNVQRKAIHELIQVMAELSPAAKTGKRKRSQMLFQGRRASQ

Approximately 17.7 kDa

Greater than 95% as determined by reducing SDS-PAGE.

无菌粉末.

Lyophilized from a solution containing 1X PBS, pH 8.0, trehalose.

<0.01 EU per 1 μg of the protein by the LAL method.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US;may vary elsewhere.