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  6. Invitrogen™ CD294 (CRTH2) Monoclonal Antibody (No3m1scz), Alexa Fluor™ 647, eBioscience™, Invitrogen™ 

Invitrogen™ CD294 (CRTH2) Monoclonal Antibody (No3m1scz), Alexa Fluor™ 647, eBioscience™, Invitrogen™
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Catalog No. 51294182
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51-294-182 100 μg
51-294-180 25 μg
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Catalog No. 51-294-182 Supplier Invitrogen™ Supplier No. 51294182
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Description

Rat Monoclonal Antibody

Description: This clone recognizes mouse CD294, also known as Prostaglandin D2 receptor 2 (PD2R2), G-protein coupled receptor 44 (GPR44) or Chemoattractant Receptor-Homologous Molecule Expressed On TH2 Cells (CRTH2). Although the clone works on unfixed mouse CD294-transfected cells, we recommend fixing and permeabilizing primary cells. Applications Reported: This No3m1scz antibody has been reported for use in flow cytometric analysis. Applications Tested: This No3m1scz antibody has been tested by flow cytometric analysis of mouse lysed whole blood cells using Protocol A: Two-step protocol for intracellular (cytoplasmic) proteins. This allows for the greatest flexibility for detection of surface and intracellular (cytoplasmic) proteins. Use of Protocol B: One-step protocol for intracellular (nuclear) proteins is recommended for staining of transcription factors in conjunction with surface and phosphorylated intracellular (cytoplasmic) proteins. Protocol C: Two-step protocol: Fixation/Methanol allows for the greatest discrimination of phospho-specific signaling between unstimulated and stimulated samples, but with limitations on the ability to stain specific surface proteins (refer to Clone Performance Following Fixation/Permeabilization located in the Best Protocols Section under the Resources tab online). All Protocols can be found in the Staining Intracellular Antigens for Flow Cytometry Protocol located in the Best Protocols Section under the Resources tab online.

CRTH2 (GPR44) is a chemoattractant receptor-homologous molecule expressed on Th2 cells that is an identified receptor for the prostaglandin D2 (PGD2) and prostaglandin D receptor. CRTH2 is expressed on Th2 cells and eosinophils and mediates chemotaxis of these cells to PGD2 and is thus thought to be a key receptor mediating eosinophil and Th2 recruitment during allergic responses. However, CRTH2-null mice showed enhanced eosinophil recruitment into the lung consistent with observations that the CRTH2-null mice produced significantly higher amounts of interleukin-5 (IL-5) and IL-3. This suggests that CRTH2 plays a nonredundant role in restricting eosinophilia and allergic response in vivo. CRTH2 is also a novel member of the G protein-coupled leukocyte chemoattractant receptor family, which is selectively expressed in Th2 but not Th1 lineage cells. CRTH2 has been reported to be expressed in the central nervous system, peripheral tissues, and in blood cells, particularly activated T helper-2 cells. Two transcripts have been isolated: a 3.5 kb transcript expressed primarily in the thalamus, frontal cortex, pons and hippocampus; and a 3.4 kb transcript expressed in fetal liver, leukocytes and thymus. CRTH2 is selectively expressed in vivo in an activated state of Th2 cells including allergen-responsive Th2 cells, suggesting its pivotal roles in ongoing Th2-type immune reactions. At least two different isoforms of CRTH2 are known to exist. Single nucleotide polymorphisms in the 3' UTR of the CRTH2 gene have been associated with asthma susceptibility.
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Specifications

Antigen CD294 (CRTH2)
Applications Flow Cytometry
Classification Monoclonal
Clone No3m1scz
Concentration 0.2 mg/mL
Conjugate Alexa Fluor 647
Formulation PBS with BSA and 0.09% sodium azide; pH 7.2
Gene PTGDR2
Gene Accession No. Q9Z2J6
Gene Alias CD294; chemoattractant receptor homologous molecule expressed on T helper type 2 cells; chemoattractant receptor-homologous molecule expressed on TH2 cells; CRTH2; DL1R; DP2; G protein-coupled receptor 44; Gpr44; G-protein coupled receptor 44; Grp45; MGC130436; PGD2 receptor; prostaglandin D2 receptor 2; prostaglandin D2 receptor CRTH2; Ptgdr2; putative G-protein coupled receptor 44
Gene Symbols PTGDR2
Host Species Rat
Immunogen rat cell line transfected with mouse CD294.
Purification Method Affinity chromatography
Quantity 100 μg
Regulatory Status RUO
Primary or Secondary Primary
Gene ID (Entrez) 14764
Target Species Mouse
Content And Storage 4°C, store in dark, DO NOT FREEZE!
Product Type Antibody
Form Liquid
Isotype IgG2a κ
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