{{Rsnum
|rsid=11665084
|Gene=HRH4
|Chromosome=18
|position=24476802
|Orientation=plus
|ReferenceAllele=C
|MissenseAllele=T
|GMAF=0.06657
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(C;C)
|geno2=(C;T)
|geno3=(T;T)
|Gene_s=HRH4
}}{{ population diversity
| geno1=(C;C)
| geno2=(C;T)
| geno3=(T;T)
| CEU | 85.0 | 15.0 | 0.0
| HCB | 92.0 | 8.0 | 0.0
| JPT | 81.4 | 17.7 | 0.9
| YRI | 99.3 | 0.7 | 0.0
| ASW | 0.0 | 0.0 | 0.0
| CHB | 92.0 | 8.0 | 0.0
| CHD | 94.4 | 5.6 | 0.0
| GIH | 94.1 | 5.9 | 0.0
| LWK | 98.2 | 1.8 | 0.0
| MEX | 70.7 | 27.6 | 1.7
| MKK | 84.0 | 16.0 | 0.0
| TSI | 78.4 | 20.6 | 1.0
| HapMapRevision=28
}}{{PMID Auto
|PMID=19450133
|Title=Histamine pharmacogenomics
}}

{{GET Evidence
|gene=HRH4
|aa_change=Ala138Val
|aa_change_short=A138V
|impact=not reviewed
|qualified_impact=Insufficiently evaluated not reviewed
|inheritance=unknown
|quality_scores=Array
|dbsnp_id=rs11665084
|overall_frequency_n=793
|overall_frequency_d=10758
|overall_frequency=0.0737126
|n_genomes=8
|n_genomes_annotated=0
|n_haplomes=8
|n_articles=0
|n_articles_annotated=0
|pph2_score=0.625
|nblosum100=2
|autoscore=0
|webscore=N
}}

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