Human S100A9 (S100A9) Antibody Pair (STJAP00821)
SPECIFICATIONS
ClonalityMonoclonal/Monoclonal
HostRabbit/Rabbit
ConjugationUnconjugated
IsotypeIgG
ImmunogenRecombinant protein
General Information
| Short Description | This S100A9 antibody pair contains complimentary capture and detection antibodies, which work together under the principals of the. |
| Applications | ELISA |
| Host | Rabbit/Rabbit |
| Reactivity | Human |
| Note | STRICTLY FOR FURTHER SCIENTIFIC RESEARCH USE ONLY (RUO). MUST NOT TO BE USED IN DIAGNOSTIC OR THERAPEUTIC APPLICATIONS. |
Product Properties
| Clonality | Monoclonal/Monoclonal |
| Clone ID | R19-5C-9/R31-4D-5 |
| Isotype | IgG |
| Conjugation | Unconjugated |
| Concentration | 1 mg/mL |
| Purification | Affinity Purified |
| Dilution Range | Determined by end user |
| Formulation | 0.01M PBS, pH 7.2 |
| Storage Instruction | Store at 4°C short term. Aliquot and store at-20°C long term. Avoid freeze/thaw cycles. |
Target Information
| Gene Symbol | S100A9 |
| Gene ID | 6280 |
| Uniprot ID | S10A9_HUMAN |
| Immunogen | Recombinant protein |
Additional Info
| Tissue Specificity | Calprotectin (S100A8/9) is predominantly expressed in myeloid cells. Except for inflammatory conditions, the expression is restricted to a specific stage of myeloid differentiation since both proteins are expressed in circulating neutrophils and monocytes but are absent in normal tissue macrophages and lymphocytes. Under chronic inflammatory conditions, such as psoriasis and malignant disorders, also expressed in the epidermis. Found in high concentrations at local sites of inflammation or in the serum of patients with inflammatory diseases such as rheumatoid, cystic fibrosis, inflammatory bowel disease, Crohn's disease, giant cell arteritis, cystic fibrosis, Sjogren's syndrome, systemic lupus erythematosus, and progressive systemic sclerosis. Involved in the formation and deposition of amyloids in the aging prostate known as corpora amylacea inclusions. Strongly up-regulated in many tumors, including gastric, esophageal, colon, pancreatic, bladder, ovarian, thyroid, breast and skin cancers. |
| Post Translational Modifications | Phosphorylated. Phosphorylation inhibits activation of tubulin polymerization. S-nitrosylation of Cys-3 is implicated in LDL(ox)-induced S-nitrosylation of GAPDH at 'Cys-247' through a transnitrosylase mechanism involving a iNOS-S100A8/9 complex. Methylation at His-105 by METTL9 reduces zinc-binding without affecting heterodimerization with S100A8. |
| Function | 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. Also participates in regulatory T-cell differentiation together with CD69. 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 pro-inflammatory, antimicrobial, oxidant-scavenging and apoptosis-inducing activities. Its pro-inflammatory 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 pro-inflammatory cascade. Has antimicrobial activity towards bacteria and fungi and exerts its antimicrobial activity probably via chelation of Zn(2+) 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. |
| Protein Name | Protein S100-A9Calgranulin-BCalprotectin L1h SubunitLeukocyte L1 Complex Heavy ChainMigration Inhibitory Factor-Related Protein 14Mrp-14P14S100 Calcium-Binding Protein A9 |
| Database Links | Reactome: R-HSA-1236974Reactome: R-HSA-166058Reactome: R-HSA-5602498Reactome: R-HSA-5603041Reactome: R-HSA-5668599Reactome: R-HSA-5686938Reactome: R-HSA-6798695Reactome: R-HSA-6799990 |
| Cellular Localisation | SecretedCytoplasmCytoskeletonCell MembranePeripheral Membrane ProteinPredominantly Localized In The CytoplasmUpon Elevation Of The Intracellular Calcium LevelTranslocated From The Cytoplasm To The Cytoskeleton And The Cell MembraneUpon Neutrophil Activation Or Endothelial Adhesion Of MonocytesIs Secreted Via A Microtubule-MediatedAlternative Pathway |
| Alternative Antibody Pair Names | Protein S100-A9 antibody pairCalgranulin-B antibody pairCalprotectin L1h Subunit antibody pairLeukocyte L1 Complex Heavy Chain antibody pairMigration Inhibitory Factor-Related Protein 14 antibody pairMrp-14 antibody pairP14 antibody pairS100 Calcium-Binding Protein A9 antibody pairS100A9 antibody pairCAGB antibody pairCFAG antibody pairMRP14 antibody pair |
Information sourced from Uniprot.org
Citations
Product Review
Frequently Asked Questions
Common questions about Human S100A9 (S100A9) Antibody Pair (STJAP00821)
This antibody pair is designed to detect human S100A9 protein (UniProt P06702). Reactivity has been confirmed for human samples only.
This antibody pair has been validated for use in ELISA. It is intended for sandwich ELISA development where one antibody serves as the capture and the other as the detection component.
Both antibodies are supplied as unconjugated, affinity-purified rabbit monoclonal IgGs at a concentration of 1 mg/mL, formulated in 0.01M PBS at pH 7.2. Clone IDs are R19-5C-9 and R31-4D-5 respectively.
Working dilutions are not pre-defined for this pair and must be determined by the end user through titration during assay optimization.
Both antibodies should be stored at 4°C for short-term use. For long-term storage, aliquot and store at -20°C. Repeated freeze/thaw cycles should be avoided to maintain activity.
Both antibodies in this pair were raised against a recombinant human S100A9 protein. Both clones were produced in rabbit hosts and are monoclonal in nature.
Orders typically arrive within 1 to 2 weeks, and often sooner depending on your location. If your timeline is critical, please contact us before ordering and we can advise on current lead times.
This product is shipped on gel ice packs to maintain integrity during transit. Priority shipping is used as standard to minimise time in transit.
A Certificate of Analysis (CoA) is provided with every order. If you do not receive one, please contact us and we will issue it promptly.