HRH4 Rabbit Polyclonal Antibody

Specifications

Product Data
Applications	FC, WB
Recommend Dilution	WB: 1:200-1:2000; IHC: 1:100-1:3,000; FC: 1:50-1:600
Reactivity	Human
Host	Rabbit
Clonality	Polyclonal
Immunogen	Peptide HTLFEWDFGKEIC, corresponding to amino acids 75-87 of human H4 Histamine Receptor. 1st extracellular loop.
Formulation	Lyophilized. Concentration before lyophilization ~0.8mg/ml (lot dependent, please refer to CoA along with shipment for actual concentration). Buffer before lyophilization: Phosphate buffered saline (PBS), pH 7.4, 1% BSA, 0.025% NaN3.
Reconstitution Method	Add 50 ul double distilled water (DDW) to the lyophilized powder.
Purification	Affinity purified on immobilized antigen.
Conjugation	Unconjugated
Storage Condition	Store at -20°C as received.
Gene Name	histamine receptor H4
Database Link	NP_067637 Entrez Gene 59340 Human UniProt ID Q9H3N8
Background	Histamine (2-[4-imidazole]ethylamine) is a low-molecular-weight amine synthesized from L-histidine. It is produced by various cells throughout the body, including central nervous system neurons, gastric mucosa parietal cells, mast cells, basophils and lymphocytes. Histamine is a major biological mediator whose functions include, among many others, regulation of vascular smooth muscle, immune regulation, regulation of sleep-wake cycles and regulation of gastric acid secretion. The biological effects of histamine are mediated through four receptors (H1- H4 Histamine receptors) all of which belong to the 7-transmembrane domain, G protein-coupled receptor (GPCR) superfamily. H4 Histamine Receptor couples to Gi/G0 proteins and receptor activation leads to inhibition of adenylate cyclase, mobilisation of calcium from intracellular stores and activation of the mitogen-activated protein kinase (MAPK) cascade. H4 Histamine Receptor is largely expressed in haemopoietic cells including mast cells, eosinophils, dendritic cells and T lymphocytes. H4 Histamine Receptors modulate eosinophil migration and the selective recruitment of mast cells leading to amplification of histamine-mediated immune responses. In addition, H4 Histamine Receptors are involved in dendritic cell activation and the regulation of T lymphocyte cytokine production. These studies indicate that H4 Histamine Receptor is an attractive therapeutic target for the treatment of inflammatory disorders, such as allergy, asthma, chronic pruritus and autoimmune diseases.
Synonyms	AXOR35; BG26; GPCR105; GPRv53; H4; H4R; HH4R
Reference Data
Protein Families	Druggable Genome, GPCR, Transmembrane
Protein Pathways	Neuroactive ligand-receptor interaction

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