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Invitrogen
FSTL1 Recombinant Rabbit Monoclonal Antibody (009), FITC
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FSTL1 Antibody (MA5-40946) in Flow
Flow cytometric analysis of Human FSTL1 expression on HeLa cells. The cells were treated according to manufacturer’s manual, stained with FSTL1 Recombinant Rabbit Monoclonal Antibody (009), FITC (Product # MA5-40946). The fluorescence histograms were derived from gated events with the forward and side light-scatter characteristics of intact cells.
Product Details
MA5-40946
Product Specifications
Species Reactivity
Human
Host/Isotype
Rabbit
/ IgG
Expression System
HEK293 cells
Class
Recombinant Monoclonal
Type
Antibody
Clone
009
Immunogen
Recombinant Human FSTL1 Protein
Conjugate
Excitation/Emission Max
498/517 nm
View spectra
Form
Liquid
Concentration
0.1 mg/mL
Purification
Protein A
Storage buffer
PBS with 0.5% BSA
Contains
0.09% sodium azide
Storage conditions
4°C, store in dark, DO NOT FREEZE!
Shipping conditions
Ambient (domestic); Wet ice (international)
RRID
Product Specific Information
May be stored for twelve months without detectable loss of activity. Protect from prolonged exposure to light and do not freeze. Sodium azide is toxic to cells and should be disposed of properly so flush with large volumes of water during disposal.
Target Information
Follistatin-like protein 1 (FSTL1) is a widely-expressed, extracellular glycoprotein that is homologously grouped into the osteonectin (BM-40/SPARC) family of secreted proteins based on its possession of both a follistatin-like and extracellular calcium-binding domain. Initially identified as a TGF-beta-inducible protein in a cloned mouse osteoblast cell line, FSTL1 has since been implicated in an array of cell-type-specific functions, such as the regulation of proliferation, differentiation, apoptosis and migration, as well as a number of biological processes, including embryonic development, inflammatory response, angiogenesis, tumorigenesis, and immune disease pathogenesis. Highly conserved across mammalian species and widely expressed in human tissues, FSTL1 can be upregulated through signaling mediators of the innate immune system,such as TLR4 agonists and the arthritogenic cytokine IL-1beta via NFkappaB pathways, to stimulate the expression and secretion of pro-inflammatory cytokines, including TNF-alpha, IL-1beta, IL-6 and IL-8. While cells of mesenchymal lineage are capable of FSTL1 production, FSTL1 expression is notably absent from cells of hematopoietic lineage under normal physiological conditions. Macrophages and monocytes are, however, capable of taking up FSTL1 at sites of inflammation where FSTL1 stimulation can cause the expression of caspase-1 and its resultant enzymatic cleavage of active IL-1beta from pro-IL-1beta. Whereas the overexpression of FSTL1 has been noted as a substantial contributor to the progression of immune diseases like rheumatoid arthritis (RA) and osteoarthritis (OA), diminished FSTL1 serum levels have been identified as playing a significant part in both ovarian and endometrial carcinogenesis, where it directly affects cell proliferation, migration and invasion.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases: FLJ50214; FLJ52277; follistatin-like 1; Follistatin-like protein 1; Follistatin-related protein 1
Gene Aliases: FRP; FSL1; FSTL1; MIR198; OCC-1; OCC1; tsc36
UniProt ID: (Human) Q12841
Entrez Gene ID: (Human) 11167
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