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 >  Protein>PSMA >PSA-HF244

FITC-Labeled Human PSMA / FOLH1 Protein, His Tag

分子别名(Synonym)

FOLH1,PSMA,GIG27,FOLH,NAALAD1,PSM,NAALADase I,GCPII,FGCP

表达区间及表达系统(Source)

FITC-Labeled Human PSMA, His Tag (PSA-HF244) is expressed from human 293 cells (HEK293). It contains AA Lys 44 - Ala 750 (Accession # Q04609-1 ). It is the FITC labeled form of Human PSMA, His Tag (PSA-H52H3).

Predicted N-terminus: His

Request for sequence

蛋白结构(Molecular Characterization)

PSMA Structure

This protein carries a polyhistidine tag at the N-terminus.

The protein has a calculated MW of 81.4 KDa. The protein migrates as 85-115 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

偶联(Conjugate)

FITC

Excitation source: 488 nm spectral line, argon-ion laser

Excitation Wavelength: 488 nm

Emission Wavelength: 535 nm

标记(Labeling)

The primary amines in the side chains of lysine residues and the N-terminus of the protein are conjugated with FITC using standard chemical labeling method. The residual FITC is removed by molecular sieve treatment during purification process.

蛋白标记度(Protein Ratio)

The FITC to protein molar ratio is 1-3.

内毒素(Endotoxin)

Less than 1.0 EU per μg by the LAL method.

纯度(Purity)

>95% as determined by SDS-PAGE.

制剂(Formulation)

Lyophilized from 0.22 μm filtered solution in 25 mM MES, 500 mM NaCl, pH6.5 with trehalose as protectant.

Contact us for customized product form or formulation.

重构方法(Reconstitution)

Please see Certificate of Analysis for specific instructions.

For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

存储(Storage)

For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Please protect from light and avoid repeated freeze-thaw cycles.

This product is stable after storage at:

  1. -20°C to -70°C for 12 months in lyophilized state;
  2. -70°C for 3 months under sterile conditions after reconstitution.
 

电泳(SDS-PAGE)

PSMA SDS-PAGE

FITC-Labeled Human PSMA, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.

 

活性(Bioactivity)-ELISA

PSMA ELISA

Immobilized Monoclonal Anti-Human PSMA Antibody, Human IgG1 at 5 μg/mL (100 μL/well) can bind FITC-Labeled Human PSMA, His Tag (Cat. No. PSA-HF244) with a linear range of 0.005-0.16 μg/mL (QC tested).

Protocol

 

活性(Bioactivity)-FACS

PSMA FACS

2e5 of Anti-PSMA CAR-293 cells were stained with 100 μL of 10 μg/mL of FITC-Labeled Human PSMA Protein, His Tag (Cat. No. PSA-HF244) and negative control protein respectively. FITC signal was used to evaluate the binding activity (QC tested).

Protocol

 

背景(Background)

Prostate-specific membrane antigen (PSMA) is also known as Folate hydrolase 1 (FOLH1), Glutamate carboxypeptidase 2 (GCP2), N-acetylated-alpha-linked acidic dipeptidase I (NAALAD1), which belongs to the peptidase M28 family and M28B subfamily. FOLH1 / PSMA is stable at pH greater than 6.5. FOLH1 / PSMA is a type II transmembrane zinc metallopeptidase that is most highly expressed in the nervous system, prostate, kidney, and small intestine. FOLH1 / GCP-2 is homodimer and binds 2 zinc ions per subunit, and required for NAALADase activity. The catalytic activity of PSMA involved in releasing of an unsubstituted, C-terminal glutamyl residue, typically from Ac-Asp-Glu or folylpoly – gamma - glutamates. FOLH1 / GCP-2 / PSMA has both folate hydrolase and N – acetylated – alpha – linked - acidic dipeptidase (NAALADase) activity and has a preference for tri-alpha-glutamate peptides. GCP-2 / PSMA involved in prostate tumor progression and also exhibits a dipeptidyl-peptidase IV type activity. In vitro, cleaves Gly-Pro-AMC.

 

前沿进展

 
 
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PSMA靶点信息
英文全称:Prostate-Specific Membrane Antigen
中文全称:前列腺癌特异性膜抗原
种类:Homo sapiens
上市药物数量:5详情
临床药物数量:69详情
最高研发阶段:批准上市
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