Invitrogen™ Human Cystatin 2 (aa 25-53) Control Fragment Recombinant Protein

Product Code. 30181518

Brand: Invitrogen™ RP99581

Description

Recombinant Protein

Highest antigen sequence indentity to the following orthologs: Mouse (38%), Rat (38%). This recombinant protein control fragment may be used for blocking experiments with the corresponding antibody, PA5-60476 (PA5-60476. In IHC/ICC and WB experiments, we recommend a 100x molar excess of the protein fragment control based on the concentration and the molecular weight. Pre-incubate the antibody-protein control fragment mixture for 30 min at room temperature.

The cystatin superfamily is a well-established family of cysteine protease inhibitors. Cystatins A and B (type 1) are mainly intracellular; cystatins C, D, E/M, F, G, S, SN and SA cystatins are extracellular (type 2); and the kininogens are type 3 cystatins which are intravascular proteins. All true cystatins inhibit cysteine peptidases of the papain family, such as cathepsins, and some also inhibit legumain family enzymes. Cystatin SA, cystatin S and cystatin SN are found primarily in saliva. Cystatin S and SN can also be expressed in tears, urine and seminal fluid. Cystatin C is a related protein which is expressed in brain, thymus, ovary, epididymis and vas deferens. Cystatin D protects against proteinases in the oral cavity, while Cystatin E/M and F moderate the inhibition of cathepsin proteins. The fetuins, part of the cystatin superfamily, are secretable proteins that influence osteogenesis and bone resorption, regulation of the insulin and hepatocyte growth factor receptors and the response to systemic inflammation. High molecular weight kininogen (Kininogen HC) and low molecular weight kininogen (Kininogen LC) have varied roles, though they both inhibit the thrombin- and plasmin-induced aggregation of thrombocytes.

Specifications

• Accession Number: P09228
• Concentration: ≥5.0 mg/mL
• For Use With (Application): Blocking Assay, Control
• Formulation: 1 M urea, PBS with no preservative; pH 7.4
• Gene ID (Entrez): 1470
• Name: Human Cystatin 2 (aa 25-53) Control Fragment
• Quantity: 100 μL
• Regulatory Status: RUO
• Gene Alias: CST2; cystatin 2; cystatin S5; cystatin SA; cystatin-2; Cystatin-S5; cystatin-SA; cysteine-proteinase inhibitor; salivary cysteine (thiol) protease inhibitor
• Common Name: Cystatin 2
• Gene Symbol: CST2
• Conjugate: Unconjugated
• Species: Human
• Recombinant: Recombinant
• Protein Tag: His-ABP-tag
• Sequence: EEDRIIEGGIYDADLNDERVQRALHFVIS
• Content And Storage: -20°C, Avoid Freeze/Thaw Cycles
• Expression System: E. coli
• Form: Liquid
• Purity or Quality Grade: >80% by SDS-PAGE and Coomassie blue staining