Invitrogen™ Calprotectin Monoclonal Antibody (MAC387)

Mouse Monoclonal Antibody

Catalog Number	Mfr. No.	Quantity
MA180155	Invitrogen™ MA180155	20 μg
MA180446	Invitrogen™ MA180446	200 μg
MA181381	Invitrogen™ MA181381	100 μg

Description

This clone recognizes the L1 or Calprotectin molecule, an intracytoplasmic antigen comprised of a 12 kDa alpha chain and a 14 kDa beta chain. Although originally described as binding to epitopes common to both the alpha and beta chains (Flavell et al. 1987) subsequent studies indicate that the antibody detects an epitope exclusively expressed on the beta chain (Goebeler et al. 1994) demonstrated by immunofluorescent and western blotting on both naturally expressing and transfected targets. In addition Mouse anti Human macrophages, clone MAC387 detects the beta chain in complex with the alpha. The antigen recognized by Mouse anti Human macrophages, clone MAC387 is expressed by granulocytes, monocytes and by tissue macrophages. Variable results have been reported for staining brain macrophages and microglia. The epitope recognized appears to be well conserved and the antibody is routinely used for the detection of myeloid cellds in a wide range of species. This product requires protein digestion pre-treatment of paraffin sections using trypsin or pronase prior to IHC staining. A suggested positive control is human spleen. For flow cytometry, use 10 μL of the suggested working dilution to label 1x10^6 cells in 100 μL.

The S100A8/A9 heterocomplex, also called MRP-8/MRP-14 complex or calprotectin, comprises 60% of the cytoplasmic protein fraction of circulating polymorphonuclear granulocytes and is also found in monocytes, macrophages and ileal tissue eosinophils. Peripheral blood monocytes carry the antigen extra- and intracellularly, neutrophils only intracellularly. The S100A8/A9 complex has antibacterial, antifungal, immunomodulating and antiproliferative effects. Besides this it is a potent chemotactic factor for neutrophils. Plasma concentrations are elevated in diseases associated with increased neutrophil activity, like inflammatory bowel disease. Granulocytes terminate their existence after transmigration through the intestinal wall. Therefore calprotectin is also detectable in feces. Elevated levels of calprotectin have been observed in body fluids such as plasma, saliva, gingival crevicular fluid, stools, and synovial fluid during infection and inflammatory conditions.

Specifications

• Antigen: Calprotectin
• Concentration: 1 mg/mL
• Applications: Flow Cytometry, Immunohistochemistry (Frozen), Immunohistochemistry (Paraffin), Western Blot, Immunocytochemistry
• Conjugate: Unconjugated
• Host Species: Mouse
• Regulatory Status: RUO
• Formulation: PBS with 0.09% sodium azide
• Gene Accession No.: P05109, P06702, P28782, P28783, P50115, P50116, P50117
• Gene ID (Entrez): 100008704, 100008985, 100061730, 100061766, 100127488, 100127489, 100735238, 100735514, 101084164, 101084419, 102168876, 102182273, 116547, 490461, 490463, 532569, 616818, 6279, 6280, 94195
• Immunogen: Human monocytes.
• Product Type: Antibody

• Clone: MAC387
• Content And Storage: Store at 4°C short term. For long term storage, store at -20°C, avoiding freeze/thaw cycles.
• Classification: Monoclonal
• Form: Liquid
• Isotype: IgG1
• Target Species: Human, Rat, Canine, Rabbit, Monkey, Bovine, Pig, Feline, Horse, Guinea Pig, Goat, Deer
• Gene: S100A9
• Gene Alias: 60B8Ag; AI323541; AW546964; B8Ag; BEE11; BEE22; CAGA; CAGB; calcium binding protein; S100 protein; calgranulin A; calgranulin B; calgranulin-A; Calgranulin-B; calprotectin; calprotectin L1H subunit; Calprotectin L1L subunit; CFAG; CGLA; CGLB; chemotactic cytokine CP-10; chemotactic S100 protein; CP-10; Cystic fibrosis antigen; EGK_01322; EGK_21438; GAGB; intracellular calcium-binding protein (MRP14); L1AG; Leukocyte L1 complex heavy chain; leukocyte L1 complex light chain; LIAG; LOC100735514; LOC532569 protein; MA387; MAC387; macrophage migration inhibitory factor-related protein-14; macrophage migration inhibitory factor-related protein-8; MIF; migration inhibitory factor-related protein 14; Migration inhibitory factor-related protein 8; Mrp14; MRP-14; MRP8; MRP-8; myeloid-related protein 14; Neutrophil cytosolic 23 kDa protein; neutrophil cytosolic 7 kDa protein; NIF; p14; p23; P7; p8; Pro-inflammatory S100 cytokine; protein S100-A8; Protein S100-A9; S100 calcium binding protein A8; S100 calcium binding protein A8 (calgranulin A); S100 calcium binding protein A9; S100 calcium binding protein A9 (calgranulin B); S100 calcium binding protein A9; protein S100-A9; S100 calcium-binding protein A8; S100 calcium-binding protein A8 (calgranulin A); S100 calcium-binding protein A9; S100 calcium-binding protein A9 (calgranulin B); S100a8; S100A8/S100A9; S100a9; similar to Calgranulin A (Migration inhibitory factor-related protein 8) (MRP-8) (Cystic fibrosis antigen) (CFAG) (P8) (Leukocyte L1 complex light chain) (S100 calcium-binding protein A8) (Calprotectin L1L subunit) (Urinary stone protein band A)...; urinary stone protein band A
• Gene Symbols: S100A8, S100A9
• Primary or Secondary: Primary
• Purification Method: Protein A