Immunohistochemical (Formalin/PFA-fixed paraffin-embedded sections) staining in human lymph node with HRH4 polyclonal antibody (Cat # PAB26489). Immunohistochemistry of formalin-fixed, paraffin-embedded tissue after heat-induced antigen retrieval.
Histamine is a ubiquitous messenger molecule released from mast cells, enterochromaffin-like cells, and neurons. Its various actions are mediated by a family of histamine receptors, which are a subset of the G-protein coupled receptor superfamily. This gene encodes a histamine receptor that is predominantly expressed in haematopoietic cells. The protein is thought to play a role in inflammation and allergy reponses. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq