Active Recombinant Mouse S100a8 Protein

• Cat.No.: S100a8-01M
• Product Overview: Recombinant Mouse S100A8 (Pro2-Glu89)/S100A9 (Ala2-Lys113) Heterodimer Protein without tag was expressed in E. coli.

Specification

• Description: S100A8 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 and adhesion. 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 proinflammatory, 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. The iNOS-S100A8/A9 transnitrosylase complex is proposed to direct selective inflammatory stimulus-dependent S-nitrosylation of multiple targets such as GAPDH, ANXA5, EZR, MSN and VIM by recognizing a [IL]-x-C-x-x-[DE] motif; S100A8 seems to contribute to S-nitrosylation site selectivity.
• Source: E. coli
• Species: Mouse
• Form: Non-covalent heterodimer
• Bio-activity: Measured by its ability to induce IL-6 secretion by A375 human melanoma cells. The ED50 for this effect is 1.5-6 μg/mL.
• Molecular Mass: 10 kDa (S100A8), 13 kDa (S100A9)
• N-terminal Sequence Analysis: Pro2 (S100A8), Ala2 (S100A9)
• Endotoxin: < 0.10 EU/μg of the protein by the LAL method.
• Purity: > 95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
• Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  12 months from date of receipt, -20 to -70 centigrade as supplied.
  1 month, 2 to 8 centigrade under sterile conditions after reconstitution.
  3 months, -20 to -70 centigrade under sterile conditions after reconstitution.
• Storage Buffer: Lyophilized from a 0.2 μm filtered solution in PBS and DTT.
• Reconstitution: Reconstitute at 500 μg/mL in PBS.
• Shipping: The product is shipped at ambient temperature.
• Protein length: Pro2-Glu89;Ala2-Lys113

Gene Information

• Gene Name: S100a8 S100 calcium binding protein A8 (calgranulin A) [ Mus musculus (house mouse) ]
• Official Symbol: S100a8
• Synonyms: S100a8; S100 calcium binding protein A8 (calgranulin A); p; Ca; MR; p8; B8A; CFA; B8Ag; CFAg; CP-1; Caga; MRP8; 60B8A; CP-10; 60B8Ag; AI323541; protein S100-A8; MRP-8; S100 calcium-binding protein A8; calgranulin-A; chemotactic S100 protein; chemotactic cytokine CP-10; leukocyte L1 complex light chain; migration inhibitory factor-related protein 8; pro-inflammatory S100 cytokine
• Gene ID: 20201
• mRNA Refseq: NM_013650
• Protein Refseq: NP_038678
• UniProt ID: P27005

Reviews

02/01/2022

Dependable protein quantification, ensures experimental accuracy.

10/29/2020

Consistent western blot results, a lab essential.

03/12/2020

Expert protein engineering support, essential for our projects.

Q&As

How do alterations in S100A8 expression impact cellular stress responses and aging?

Changes in S100A8 expression impact cellular stress responses, with implications for aging and age-related diseases.

How does S100A8 contribute to the pathogenesis of cancer, especially in terms of tumor growth and metastasis?

S100A8 contributes to cancer development, influencing tumor cell proliferation and metastatic potential.

What is the impact of S100A8 on wound healing and tissue repair mechanisms?

S100A8 is involved in wound healing, affecting tissue repair and regeneration.

How does S100A8 interact with calcium ions and what are the implications for inflammatory processes?

S100A8 binds calcium ions, modulating inflammatory processes and cytokine production.

How does S100A8 influence the development and progression of cardiovascular diseases?

S100A8 affects cardiovascular disease development, impacting inflammation and vascular integrity.

What role does S100A8 play in the immune response, particularly in autoimmune diseases?

S100A8 plays a significant role in the immune response, impacting the pathogenesis of autoimmune diseases.

What are the effects of S100A8 on skin homeostasis and the development of skin disorders?

S100A8 influences skin health, playing a role in maintaining skin barrier function and in skin disorders.