Angiopoietin-2 蛋白, Human (CHO, His)

Angiopoietin-2 (ANGPT2) protein competes with ANGPT1 for TEK/TIE2 binding, modulates ANGPT1 signaling and induces TEK/TIE2 phosphorylation even in the absence of ANGPT1. In the absence of angiogenic stimulation, ANGPT2 disrupts cell-matrix contacts, potentially triggering endothelial cell apoptosis and vessel regression. Angiopoietin-2 Protein, Human (CHO, His) is the recombinant human-derived Angiopoietin-2 protein, expressed by CHO , with C-6*His labeled tag. The total length of Angiopoietin-2 Protein, Human (CHO, His) is 478 a.a., with molecular weight of ~62.6 kDa.

血管生成素-2 (ANGPT2) 蛋白与 TEK/TIE2 结合，竞争 ANGPT1 结合位点，从而调节 ANGPT1 信号传导。即使在没有 ANGPT1 的情况下，这种相互作用也可以诱导 TEK/TIE2 的酪氨酸磷酸化。在缺乏血管生成诱导剂（例如 VEGF）的情况下，ANGPT2 的作用会导致细胞-基质接触松动，从而可能诱导内皮细胞凋亡和随后的血管消退。然而，在 VEGF 存在的情况下，ANGPT2 协同促进内皮细胞迁移和增殖，充当允许的血管生成信号。此外，ANGPT2 参与淋巴管生成的调节。该蛋白还与 TEK/TIE2 相互作用，竞争与 ANGPT1 相同的结合位点，此外还与 ITGA5 相互作用，有助于其在血管生成和血管调节中发挥多方面的作用。

Immobilized Angiopoietin-2 Protein, Human (CHO, His) at 2 μg/mL (100 μl/well) can bind human TIE2-Fc and the EC₅₀ is 80-480 ng/mL.

Human

CHO

C-6*His

O15123 (Y19-F496)

285  [NCBI]

MWQIVFFTLSCDLVLAAAYNNFRKSMDSIGKKQYQVQHGSCSYTFLLPEMDNCRSSSSPYVSNAVQRDAPLEYDDSVQRLQVLENIMENNTQWLMKLENYIQDNMKKEMVEIQQNAVQNQTAVMIEIGTNLLNQTAEQTRKLTDVEAQVLNQTTRLELQLLEHSLSTNKLEKQILDQTSEINKLQDKNSFLEKKVLAMEDKHIIQLQSIKEEKDQLQVLVSKQNSIIEELEKKIVTATVNNSVLQKQQHDLMETVNNLLTMMSTSNSAKDPTVAKEEQISFRDCAEVFKSGHTTNGIYTLTFPNSTEEIKAYCDMEAGGGGWTIIQRREDGSVDFQRTWKEYKVGFGNPSGEYWLGNEFVSQLTNQQRYVLKIHLKDWEGNEAYSLYEHFYLSSEELNYRIHLKGLTGTAGKISSISQPGNDFSTKDGDNDKCICKCSQMLTGGWWFDACGPSNLNGMYYPQRQNTNKFNGIKWYYWKGSGYSLKATTMMIRPADF

Approximately 62.6 kDa

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

无菌粉末.

Lyophilized from a 0.2 μm filtered solution of 20 mM MOPS, 150 mM NaCl, 0.05% CHAPS, pH 7.0. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween 80 are added as protectants 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. 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.