Western Blot: CRTH-2/GPR44 Antibody [NBP1-76755] - Jurkat cell lysate with GPR44 antibody at 1 ug/ml in (A) the absence and (B) presence of blocking peptide.
Immunocytochemistry/ Immunofluorescence: CRTH-2/GPR44 Antibody [NBP1-76755] - Human Heart tissue with CRTH2 antibody at 20 ug/mL.
Immunohistochemistry-Paraffin: CRTH-2/GPR44 Antibody [NBP1-76755] - Human heart tissue with GPR44 antibody at 2.5 ug/ml.
Antibody was raised against a 18 amino acid synthetic peptide from near the amino terminus of human CRTH2. The immunogen is located within the first 50 amino acids of CRTH2. Amino Acid Squence: EQMSRLQSHSNTSIRYID
Specificity
At least two different isoforms of CRTH2 are known to exist; this antibody will detect both isoforms.
Isotype
IgG
Clonality
Polyclonal
Host
Rabbit
Gene
PTGDR2
Purity
Peptide affinity purified
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Use in ICC/IF reported in scientific literature (PMID: 25917171).
Theoretical MW
43 kDa. Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
Guinea Pig reactivity reported in scientific literature (PMID: 25917171).
Packaging, Storage & Formulations
Storage
Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
Buffer
PBS
Preservative
0.02% Sodium Azide
Concentration
1 mg/ml
Purity
Peptide affinity purified
Alternate Names for CRTH-2/GPR44 Antibody - BSA Free
CD294 antigen
CD294
Chemoattractant receptor-homologous molecule expressed on Th2 cells
CRTH2
CRTH-2
CRTH2chemoattractant receptor homologous molecule expressed on T helper type 2 cells
DL1R
DP2
G protein-coupled receptor 44
GPR44
PGD2R
PTGDR2
putative G-protein coupled receptor 44
Background
The chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2) is a recently identified receptor for the prostaglandin D2 (PGD2) in addition to the classic 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. At least two different isoforms of CRTH2 are known to exist.
Limitations
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.
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