Human Cystatin B ELISA Kit

Specifications

Product Data
Description	Human Cystatin B ELISA Kit
Size	1 x 96 wells
Assay Type	Sandwich ELISA kit of Quantitative Detection for Human Cystatin B
Assay Length	3.5 hours incubations; 1 hour washing and analyzing samples
Signal	Colorimetric
Curve Range	62.5pg/ml-4000pg/ml
Sample Type	Cell culture supernates, serum, plasma(heparin, EDTA), saliva, urine and human milk.
Sample Volume	100 ul
Specificity	This kit is used for quantitative detection of human Cystatin B
Sensitivity	<10pg/ml
Reactivity	Human
Cross Reactivity	There is no detectable cross-reactivity with other relevant proteins.
Interference	No significant interference observed with available related molecules.
Components	96-well plate precoated with anti- human Cystatin B antibody 1 Lyophilized recombinant human Cystatin B standard 10ng/tubex2 Biotinylated anti- human Cystatin B antibody 130ul(dilution 1:100) Avidin-Biotin-Peroxidase Complex(ABC) 130ul(dilution 1:100) Sample diluent buffer 30 ml Antibody diluent buffer 12ml ABC diluent buffer 12ml TMB color developing agent 10ml TMB stop solution 10ml
Background	Cystatin B(CSTB), also called STFB, is a small protein that is a member of the superfamily of cysteine protease inhibitors. It has been isolated from human spleen and liver and its amino acid sequence has been fully determined. The cystatin B gene is located on 21q22.3. It is widely distributed and is localized mostly intracellularly, but has been found extracellularly. The protein is able to form a dimer stabilized by noncovalent forces, inhibiting papain and cathepsins l, h and b. Its role is thought to be as a protector against the proteinases leaking from lysosomes. A cystatin B multiprotein complex might have a specific cerebellar function, and that the loss of this function might contribute to the etiopathogenesis of EPM1. Upon differentiation to myotubes, CSTB becomes excluded from the nucleus and lysosomes, suggesting that the subcellular distribution of CSTB is dependent on the differentiation status of the cell.
Gene Symbol	CSTB

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