Human S100 Calcium Binding Protein A9 (S100A9) ELISA Kit | S100A9 elisa kit

Human S100 Calcium Binding Protein A9 (S100A9) ELISA Kit

Cat. Num. AAA454333

• Gene Names: S100A9; MIF; NIF; P14; CAGB; CFAG; CGLB; L1AG; LIAG; MRP14; 60B8AG; MAC387
• Reactivity: Human
• Synonyms: S100 Calcium Binding Protein A9 (S100A9); Human S100 Calcium Binding Protein A9 (S100A9) ELISA Kit; MRP14 MIF 60B8AG CFAG NIF CAGB CGLB L1AG P14 Calgranulin B Migration inhibitory factor-related protein 14 Calprotectin L1H subunit Leukocyte L1 complex heavy chain; S100A9 elisa kit

• Reactivity: Human
• Specificity: This assay has high sensitivity and excellent specificity for detection of S100A9. No significant cross-reactivity or interference between S100A9 and analogues was observed.
• Sequence Length: 114

• Samples: Serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids.
• Assay Type: Sandwich
• Detection Range: 0.781-50ng/mL
• Sensitivity: 0.24ng/mL
• Intra-assay Precision: Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level S100A9 were tested 20 times on one plate, respectively. Intra-Assay: CV<10%
• Inter-assay Precision: Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level S100A9 were tested on 3 different plates, 8 replicates in each plate. CV(%) = SD/meanX100. Inter-Assay: CV<12%
• Preparation and Storage: For unopened kit, all reagents should be kept according to the labels on vials. The TMB Substrate, Wash Buffer, Stop Solution should be stored at 4 degree C. All others should be stored at -20 degree C.

Typical Standard Curve/Testing Data

Related Product Information for S100A9 elisa kit

Intended Uses: This kit is a sandwich enzyme immunoassay for in vitro quantitative measurement of S100A9 in human serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids.

Principle of the Assay: The microtiter plate provided in this kit has been pre-coated with an antibody specific to S100A9. Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody preparation specific to S100A9. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain S100A9, biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm +/- 10nm. The concentration of S100A9 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 #: 4506773
• NCBI GeneID: 6280
• NCBI Accession #: NP_002956.1
• NCBI GenBank Nucleotide #: NM_002965.3
• UniProt Accession #: P06702; Q6FGA1; Q9NYM0; Q9UCJ1; D3DV36
• Molecular Weight: 13,242 Da
• NCBI Official Full Name: protein S100-A9
• NCBI Official Synonym Full Names: S100 calcium binding protein A9
• NCBI Official Symbol: S100A9
• NCBI Official Synonym Symbols: MIF; NIF; P14; CAGB; CFAG; CGLB; L1AG; LIAG; MRP14; 60B8AG; MAC387
• NCBI Protein Information: protein S100-A9
• UniProt Protein Name: Protein S100-A9
• Protein Family: Protein
• UniProt Gene Name: S100A9
• UniProt Synonym Gene Names: CAGB; CFAG; MRP14; MRP-14; p14

NCBI Description

The protein encoded by this gene is a member of the S100 family of proteins containing 2 EF-hand calcium-binding motifs. S100 proteins are localized in the cytoplasm and/or nucleus of a wide range of cells, and involved in the regulation of a number of cellular processes such as cell cycle progression and differentiation. S100 genes include at least 13 members which are located as a cluster on chromosome 1q21. This protein may function in the inhibition of casein kinase and altered expression of this protein is associated with the disease cystic fibrosis. This antimicrobial protein exhibits antifungal and antibacterial activity. [provided by RefSeq, Nov 2014]

Uniprot Description

S100A9 is a calcium- and zinc-binding protein which plays a prominent role in the regulation of inflammatory processes and immune response. It can induce neutrophil chemotaxis, adhesion, can increase the bactericidal activity of neutrophils by promoting phagocytosis via activation of SYK, PI3K/AKT, and ERK1/2 and can induce degranulation of neutrophils by a MAPK-dependent mechanism. Predominantly found as calprotectin (S100A8/A9) which has a wide plethora of intra- and extracellular functions. The intracellular functions include: facilitating leukocyte arachidonic acid trafficking and metabolism, modulation of the tubulin-dependent cytoskeleton during migration of phagocytes and activation of the neutrophilic NADPH-oxidase. Activates NADPH-oxidase by facilitating the enzyme complex assembly at the cell membrane, transferring arachidonic acid, an essential cofactor, to the enzyme complex and S100A8 contributes to the enzyme assembly by directly binding to NCF2/P67PHOX. The extracellular functions involve proinfammatory, antimicrobial, oxidant-scavenging and apoptosis-inducing activities. Its proinflammatory activity includes recruitment of leukocytes, promotion of cytokine and chemokine production, and regulation of leukocyte adhesion and migration. Acts as an alarmin or a danger associated molecular pattern (DAMP) molecule and stimulates innate immune cells via binding to pattern recognition receptors such as Toll-like receptor 4 (TLR4) and receptor for advanced glycation endproducts (AGER). Binding to TLR4 and AGER activates the MAP-kinase and NF-kappa-B signaling pathways resulting in the amplification of the proinflammatory cascade. Has antimicrobial activity towards bacteria and fungi and exerts its antimicrobial activity probably via chelation of Zn2+ which is essential for microbial growth. Can induce cell death via autophagy and apoptosis and this occurs through the cross-talk of mitochondria and lysosomes via reactive oxygen species (ROS) and the process involves BNIP3. Can regulate neutrophil number and apoptosis by an anti-apoptotic effect; regulates cell survival via ITGAM/ITGB and TLR4 and a signaling mechanism involving MEK-ERK. Its role as an oxidant scavenger has a protective role in preventing exaggerated tissue damage by scavenging oxidants. Can act as a potent amplifier of inflammation in autoimmunity as well as in cancer development and tumor spread. Has transnitrosylase activity; in oxidatively-modified low-densitity lipoprotein (LDL(ox))-induced S-nitrosylation of GAPDH on 'Cys-247' proposed to transfer the NO moiety from NOS2/iNOS to GAPDH via its own S-nitrosylated Cys-3. The iNOS-S100A8/A9 transnitrosylase complex is proposed to also direct selective inflammatory stimulus-dependent S-nitrosylation of multiple targets such as ANXA5, EZR, MSN and VIM by recognizing a [IL]-x-C-x-x-[DE] motif.