{{Rsnum
|rsid=4800573
|Gene=HRH4
|Chromosome=18
|position=24479706
|Orientation=plus
|GMAF=0.1694
|Gene_s=HRH4
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(A;A)
|geno2=(A;G)
|geno3=(G;G)
}}{{ population diversity
| geno1=(A;A)
| geno2=(A;G)
| geno3=(G;G)
| CEU | 1.8 | 41.1 | 57.1
| HCB | 9.6 | 39.3 | 51.1
| JPT | 8.8 | 50.4 | 40.7
| YRI | 0.0 | 0.7 | 99.3
| ASW | 1.8 | 8.8 | 89.5
| CHB | 9.6 | 39.3 | 51.1
| CHD | 4.7 | 52.3 | 43.0
| GIH | 2.0 | 29.7 | 68.3
| LWK | 0.0 | 0.9 | 99.1
| MEX | 0.0 | 29.8 | 70.2
| MKK | 0.0 | 0.6 | 99.4
| TSI | 2.9 | 15.7 | 81.4
| HapMapRevision=28
}}{{PMID Auto
|PMID=22653292
|Title=Asthma endophenotypes and polymorphisms in the histamine receptor HRH4 gene
}}

{{on chip | 23andMe v1}}
{{on chip | 23andMe v2}}
{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | Affy GenomeWide 6}}
{{on chip | FTDNA2}}
{{on chip | FTDNA}}
{{on chip | HumanOmni1Quad}}
{{on chip | Illumina Human 1M}}