货号价格

PLA-HM101-100μg / 询价

PLA-HM101-500μg / 询价

PLA-HM101-500μgx2 / 询价

Human PLAU/uPA Protein (active form)

产品信息(Product Info)
表达区间及表达系统(Source)

Recombinant Human PLAU/uPA Protein (active form) is expressed from HEK293 with His tag at the C-Terminus.
It contains Ser21-Leu431, which consists of two chains: Long chain A (Ser21-Phe177) and chain B (Ile179-Leu 431). The long chain A is further cleaved to yield a short chain A (Lys156-Phe 177) and N-Terminus fragment (Ser21-Lys155) [Accession | P00749-1].

分子量大小(Molecular Weight)

The protein has a predicted MW of 17.9 kDa (long chain A), 29.2 kDa (chain B) and 15.3 kDa (N-terminal fragment). The protein migrates to 30-38 kDa (chain B) and 17 kDa (N-terminal fragment) based on Bis-Tris PAGE result.

纯度(Purity)

> 95% as determined by Bis-Tris PAGE
> 95% as determined by HPLC

内毒素(Endotoxin)

Less than 1EU per μg by the LAL method.

制剂(Formulation)

Lyophilized from 0.22μm filtered solution in 1% HCOOH, 1mM DTT (pH 3.0). Normally 8% trehalose is added as protectant before lyophilization.

重构方法(Reconstitution)

Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in 1% HCOOH, 1mM DTT (pH 3.0).

存储(Storage)

-20 to -80°C for 12 months as supplied from date of receipt.
-80°C for 3 months after reconstitution.
2-8°C for 2-7 days after reconstitution.
Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.

产品数据(Assay Data)
Bis-Tris PAGE

Human PLAU (activated by trypsin) on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.

SEC-HPLC

The purity of Human PLAU (activated by trypsin) is greater than 95% as determined by SEC-HPLC.

Bioactivity Data

Measured by its ability to cleave a peptide substrate, N-carbobenzyloxy-Gly-Gly-Arg-7-amido-4-methylcoumarin (Z-GGR-AMC). The specific activity is > 2000 pmol/min/μg (QC Test).

背景(Background)

Plasminogen activator, urokinase (uPA) is a secreted serine protease, cleaving the sequence Cys-Pro-Gly-Arg560-Val561-Val-Gly-Gly-Cys in plasminogen to form plasmin. Dysregulation of PLAU is often accompanied by various cancers and PLAU inhibition could suppress tumor growth. Collectively, PLAU is necessary for tumor progression and can be a diagnostic and prognostic biomarker in HNSCC.

分子别名(Synonyms)

PLAU; Urokinase; ATF; UPA; URK; u-PA; BDPLT5; QPD

文献(References)

(1) Chen G, Sun J, Xie M, Yu S, Tang Q, Chen L. PLAU Promotes Cell Proliferation and Epithelial-Mesenchymal Transition in Head and Neck Squamous Cell Carcinoma. Front Genet. 2021 May 20;12:651882. doi: 10.3389/fgene.2021.651882. PMID: 34093649; PMCID: PMC8173099.

(2) Ellis, V. (2004) in Handbook of Proteolytic Enzymes. Barrett, A.J. et al. eds., Academic Press, San Diego, pp.1677.

Note: HPLC results always come from liquid protein, due to absorption peak interference of trehalose in lyophilized powder.