Human Cystatin-D ELISA Kit | CST5 elisa kit

Human Cystatin-D ELISA Kit

Cat. Num. AAA2887794

• Reactivity: Human
• Synonyms: Cystatin-D; Human Cystatin-D ELISA Kit; Cystatin-5; CST5; CST5 elisa kit

• Reactivity: Human
• Specificity: Recombinant and natural Human Cystatin-D
• Sequence Length: 142

• Samples: Serum, plasma, tissue homogenates, cell culture supernates or other biological fluids
• Detection Range: 3.12-200 ng/mL
• Sensitivity: <1.61 ng/mL
• Intra-assay Precision: Intra-Assay CV: <=6.5%
• Inter-assay Precision: Inter-Assay CV: <=9.2%
• Preparation and Storage: For long term storage, please store the entire kit at -20 degree C.

Typical Testing Data/Standard Curve (for reference only)

Related Product Information for CST5 elisa kit

Intended Uses: This immunoassay kit allows for the in vitro quantitative determination of target antigen concentrations in serum, plasma, tissue homogenates, cell culture supernates or other biological fluids.

Principle of the Assay: The microtiter plate provided in this kit has been pre-coated with an antibody specific to target antigen. Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody preparation specific for target antigen and then avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. Then a TMB substrate solution is added to each well. Only those wells that contain target antigen, biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of a sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450 nm +/- 2 nm. The concentration of target antigen in the samples is then determined by comparing the O.D. of the samples to the standard curve.

NCBI and Uniprot Product Information

• NCBI GI #: 19882256
• NCBI GeneID: 1473
• NCBI Accession #: NP_001891.2
• NCBI GenBank Nucleotide #: NM_001900.4
• Molecular Weight: 16,080 Da
• NCBI Official Full Name: cystatin-D
• NCBI Official Synonym Full Names: cystatin D
• NCBI Official Symbol: CST5
• NCBI Protein Information: cystatin-D
• UniProt Protein Name: Cystatin-D
• Protein Family: Cystatin
• UniProt Gene Name: CST5
• UniProt Entry Name: CYTD_HUMAN

NCBI Description

The cystatin superfamily encompasses proteins that contain multiple cystatin-like sequences. Some of the members are active cysteine protease inhibitors, while others have lost or perhaps never acquired this inhibitory activity. There are three inhibitory families in the superfamily, including the type 1 cystatins (stefins), type 2 cystatins and the kininogens. The type 2 cystatin proteins are a class of cysteine proteinase inhibitors found in a variety of human fluids and secretions. The cystatin locus on chromosome 20 contains the majority of the type 2 cystatin genes and pseudogenes. This gene is located in the cystatin locus and encodes a protein found in saliva and tears. The encoded protein may play a protective role against proteinases present in the oral cavity. [provided by RefSeq, Jul 2008]

Uniprot Description

CST5: Cysteine proteinase inhibitor that possibly plays a protective role against proteinases present in the oral cavity. The order of preference for inhibition is cathepsin S > cathepsin H > cathepsin L > cathepsin B. Belongs to the cystatin family.

Protein type: Secreted, signal peptide; Secreted

Chromosomal Location of Human Ortholog: 20p11.21

Cellular Component: extracellular region

Molecular Function: cysteine protease inhibitor activity; protein binding