Principle of the Assay: GRM7 ELISA kit applies the competitive enzyme immunoassay technique utilizing an anti-GRM7 antibody and an GRM7-HRP conjugate. The assay sample and buffer are incubated together with GRM7-HRP conjugate in pre-coated plate for one hour. After the incubation period, the wells are decanted and washed five times. The wells are then incubated with a substrate for HRP enzyme. The product of the enzyme-substrate reaction forms a blue colored complex. Finally, a stop solution is added to stop the reaction, which will then turn the solution yellow. The intensity of color is measured spectrophotometrically at 450nm in a microplate reader. The intensity of the color is inversely proportional to the GRM7 concentration since GRM7 from samples and GRM7-HRP conjugate compete for the anti-GRM7 antibody binding site. Since the number of sites is limited, as more sites are occupied by GRM7 from the sample, fewer sites are left to bind GRM7-HRP conjugate. A standard curve is plotted relating the intensity of the color (O.D.) to the concentration of standards. The GRM7 concentration in each sample is interpolated from this standard curve.
NCBI and Uniprot Product Information
NCBI Description
Granulins are a family of secreted, glycosylated peptides that are cleaved from a single precursor protein with 7.5 repeats of a highly conserved 12-cysteine granulin/epithelin motif. The 88 kDa precursor protein, progranulin, is also called proepithelin and PC cell-derived growth factor. Cleavage of the signal peptide produces mature granulin which can be further cleaved into a variety of active, 6 kDa peptides. These smaller cleavage products are named granulin A, granulin B, granulin C, etc. Epithelins 1 and 2 are synonymous with granulins A and B, respectively. Both the peptides and intact granulin protein regulate cell growth. However, different members of the granulin protein family may act as inhibitors, stimulators, or have dual actions on cell growth. Granulin family members are important in normal development, wound healing, and tumorigenesis. [provided by RefSeq, Jul 2008]
Uniprot Description
GRN: Granulins have possible cytokine-like activity. They may play a role in inflammation, wound repair, and tissue remodeling. Defects in GRN are the cause of ubiquitin-positive frontotemporal dementia (UP-FTD); also known as tau- negative frontotemporal dementia linked to chromosome 17. Frontotemporal dementia (FTD) is the second most common cause of dementia in people under the age of 65 years. It is an autosomal dominant neurodegenerative disease. Defects in GRN are the cause of neuronal ceroid lipofuscinosis type 11 (CLN11). A form of neuronal ceroid lipofuscinosis characterized by rapidly progressive visual loss due to retinal dystrophy, seizures, cerebellar ataxia, and cerebellar atrophy. Cognitive decline may also occur. Neuronal ceroid lipofuscinoses are progressive neurodegenerative, lysosomal storage diseases characterized by intracellular accumulation of autofluorescent liposomal material. Belongs to the granulin family. 2 isoforms of the human protein are produced by alternative splicing.
Protein type: Secreted, signal peptide; Secreted
Chromosomal Location of Human Ortholog: 17q21.32
Cellular Component: extracellular space; mitochondrion; intracellular membrane-bound organelle
Molecular Function: protein binding; growth factor activity; cytokine activity
Biological Process: blastocyst hatching; signal transduction; positive regulation of epithelial cell proliferation; embryo implantation
Disease: Frontotemporal Lobar Degeneration With Tdp43 Inclusions, Grn-related; Ceroid Lipofuscinosis, Neuronal, 11
Research Articles on GRN
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Product Notes
The Monkey GRN grn (Catalog #AAA756110) is an ELISA Kit and is intended for research purposes only. The product is available for immediate purchase. The AAA756110 ELISA Kit recognizes Monkey GRN. It is sometimes possible for the material contained within the vial of "Granulins, ELISA Kit" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
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