TWEAK/TNFSF12 蛋白, Mouse (204a.a, HEK293, rFc)

TWEAK Protein refers to the cytokine tumor necrosis factor-like weak inducer of apoptosis, belongs to tumor necrosis factor (TNF) superfamily. TWEAK protein binds to FN14 and TNRFSF12/APO3, is a weak inducer of apoptosis^[1]. TWEAK does have pro-apoptotic activity for tumor cell, mediates NF-kappa-B activation, promotes angiogenesis and the proliferation of endothelial cells (ECs)^[2]. TWEAK also increases IL-6 and IL-8 secretion, and could potentiate the pro-inflammatory activities of TNF and IL-1^[3]. Mouse TWEAK protein is a type II transmembrane protein with a transmembrane domain. TWEAK/TNFSF12 Protein, Mouse (HEK293, rFc) is the extracellular part of TWEAK protein, produced by HEK293 cells with N-terminal rFc-tag.

TWEAK蛋白是指细胞因子肿瘤坏死因子样细胞凋亡弱诱导剂。它是属于肿瘤坏死因子（TNF）超家族的多功能细胞因子，通过结合TweakR/Fn14受体发挥作用。TWEAK 是一种细胞表面相关的 II 型跨膜蛋白，具有 2 种类型的蛋白链：膜形式和分泌或可溶形式。可溶形式通过蛋白水解加工从膜形式衍生而来。人和小鼠的蛋白质序列差异很大，相似度为 24.79%^[1]。
TWEAK 与 FN14 结合，也可能与 TNRFSF12/APO3 结合，是某些细胞凋亡的弱诱导剂。细胞类型。TWEAK 介导 NF-kappa-B 激活，促进血管生成和内皮细胞增殖^[2]。
TWEAK 具有多种生物活性，其中许多与免疫系统发育和功能相关< super>[1]。
TWEAK 对一组选定的人类肿瘤细胞系和单核细胞具有促凋亡活性，同时促进人类血管 EC 和 SMC 中的细胞增殖。此外，FGF-2 共同治疗可以增强 TWEAK 刺激的 HUVEC 增殖，这种作用可能是由于 FGF-2 上调 TweakR/Fn14 基因表达的能力所致。同时，TWEAK-TweakR/Fn14 自分泌信号传导促进人微血管肾内皮细胞 (HMREC) 迁移^[1]。
TWEAK 在炎症反应中也发挥着关键作用。TWEAK 可刺激人类肿瘤细胞系、WI-38 成纤维细胞和星形胶质细胞中白细胞介素 (IL)-8 的分泌。TWEAK 还可以增加星形胶质细胞中 IL-6 的分泌和 ICAM-1 的表达。此外，TWEAK 共孵育可增强 TNF 和 IL-1 的促炎活性，推测 TWEAK 可能参与慢性炎症性疾病的发病机制^[3]。
总之，TWEAK 涉及刺激细胞生长和血管生成、诱导炎症细胞因子，并在某些实验条件下刺激细胞凋亡^[1]。

Mouse TNFSF12, Rabbit Fc Tag immobilized on CM5 Chip can bind Mouse TNFRSF12A, hFc Tag with an affinity constant of 0.12 nM as determined in SPR assay (Biacore T200).

Mouse

HEK293

N-rFc

O54907(S46-H249)

21944

SWATLSAQEPSQEELTAEDRREPPELNPQTEESQDVVPFLEQLVRPRRSAPKGRKARPRRAIAAHYEVHPRPGQDGAQAGVDGTVSGWEETKINSSSPLRYDRQIGEFTVIRAGLYYLYCQVHFDEGKAVYLKLDLLVNGVLALRCLEEFSATAASSPGPQLRLCQVSGLLPLRPGSSLRIRTLPWAHLKAAPFLTYFGLFQVH

40-50 kDa

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

无菌粉末

Lyophilized from 0.22 μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.

<1 EU/μg, determined by LAL method.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O.

Stored at -20°C for 2 years from date of receipt. 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.