|Calculated MW||This protein is fused with 6×His tag at the C-terminus, has a calculated MW of 45 kDa. The predicted N-terminus is Ser21, Ile179 & Lys156 . DTT-reduced Protein migrates as three bands corresponding to the long α chain, β chain and unprocessed full-length chain with the molecular mass of 18 kDa, 32 kDa and 50 kDa respectively due to glycosylation and cleavage.|
|Other Names||Urokinase, PLAU, ATF, UPA, URK, u-PA，BDPLT5，QPD|
|Source||HEK 293 cells|
|Application Notes||Centrifuge the vial prior to opening. Reconstitute in sterile PBS, pH 7.4 to a concentration of 50 µg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 month. For extended storage, it is recommended to store at -20°C.|
|Storage||-20°C; Lyophilized from 0.22 µm filtered solution in HEPES, NaCl and CaCl2. Generally 5-8% Mannitol or trehalose is added as a protectant before lyophilization.|
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Urokinase - type plasminogen activator also known as PLAU and UPA, a serine protease with extremely limited substrate specificity, cleaving the sequence Cys – Pro – Gly - Arg560 - Val561 – Val – Gly – Gly – Cys in plasminogen to form plasmin. uPA is a potent marker of invasion and metastasis in a variety of human cancers associated with breast, stomach, colon, bladder, ovary, brain and endometrium. The human PLAU is initially synthesized as 431 amino acid precursor with a N-terminal signal peptide (20 residues). The single chain molecule is processed into a disulfide-linked two-chain molecule of different molecular weights. Two forms of the A chain exist, starting at Ser21 (the long form) and Lys156 (the short form). The long and short A chains are unique to the high and low molecular weight forms, respectively. The long A chain contains an EGF-like domain, responsible for binding of the PLAU receptor. The B chain corresponds to the catalytic domain.
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Kalnine N.,et al.Submitted (MAY-2003) to the EMBL/GenBank/DDBJ databases.
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