{{Rsnum
|rsid=2156921
|Gene=BCR
|Chromosome=22
|position=23226876
|Orientation=plus
|GMAF=0.3609
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(A;A)
|geno2=(A;G)
|geno3=(G;G)
|Gene_s=BCR
}}{{ population diversity
| geno1=(A;A)
| geno2=(A;G)
| geno3=(G;G)
| CEU | 30.0 | 56.4 | 13.6
| HCB | 56.3 | 35.6 | 8.1
| JPT | 45.5 | 41.1 | 13.4
| YRI | 63.7 | 33.6 | 2.7
| ASW | 47.4 | 38.6 | 14.0
| CHB | 56.3 | 35.6 | 8.1
| CHD | 48.6 | 42.2 | 9.2
| GIH | 33.7 | 46.5 | 19.8
| LWK | 66.4 | 28.2 | 5.5
| MEX | 44.8 | 48.3 | 6.9
| MKK | 34.0 | 52.6 | 13.5
| TSI | 27.7 | 54.5 | 17.8
| HapMapRevision=28
}}
[[rs2156921]], a SNP in the [[BCR]] gene on chromosome 22, has been associated with increased risk for [[depression]]. The odds ratio for carriers of the minor allele (G) are reported as 1.29 (p=0.031) based on a study of 329 Japanese patients.{{PMID|15866548}}

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