Gene Information
Gene NameHRH4
OrganismHomo sapiens (Human)
Gene Length390
Protein NamesHistamine H4 receptor (H4R) (HH4R) (AXOR35) (G-protein coupled receptor 105) (GPRv53) (Pfi-013) (SP9144)
Target Namehistamine h4 receptor
Target TypeClinical trial target
Gene Age382 ( ENSG00000134489 )
Evolutionary StageEumetazoa
AlphaFoldDBQ9H3N8
Gene CardHRH4
Uniprot IDQ9H3N8
PfamPF00001
In ASDno
Allosteric Predictionyes (1.216237877)
Ortholog in AnimalsAlpaca_ HRH4 ( ortholog_one2one )
Dog_ HRH4 ( ortholog_one2one )
GuineaPig_ HRH4 ( ortholog_one2one )
Macaque_ HRH4 ( ortholog_one2one )
Mouse_ Hrh4 ( ortholog_one2one )
Pig_ HRH4 ( ortholog_one2one )
Rat_ Hrh4 ( ortholog_one2one )
Rabbit_ HRH4 ( ortholog_one2one )
OhnologsHRH3
ParalogsHRH2, TAAR6, DRD4, HRH1, DRD1, GPR52, HTR1A, HTR1D, CHRM3, CHRM4, HRH3, TAAR5, HTR4, TAAR1, GPR21, CHRM1, TAAR9, CHRM5, TAAR8, DRD3, GPR84, CHRM2, GPR161, DRD5, TAAR2
TissueNA
Tissue SpecificityExpressed primarily in the bone marrow and eosinophils. Shows preferential distribution in cells of immunological relevance such as T-cells, dendritic cells, monocytes, mast cells, neutrophils. Also expressed in a wide variety of peripheral tissues, including the heart, kidney, liver, lung, pancreas, skeletal muscle, prostate, small intestine, spleen, testis, colon, fetal liver and lymph node. {ECO:0000269|PubMed:12503632}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB NA 
DBSNP rs11665084  rs11662595 
Subcellular location [CC]Cell membrane;
Multi-pass membrane protein.
Mouse PG classificationNA
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