{{Rsnum
|rsid=4840568
|Gene=BLK
|Chromosome=8
|position=11493510
|Orientation=plus
|GMAF=0.4426
|Gene_s=BLK
|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 | 4.4 | 43.4 | 52.2
| HCB | 58.1 | 34.6 | 7.4
| JPT | 46.0 | 45.1 | 8.8
| YRI | 12.9 | 51.7 | 35.4
| ASW | 12.3 | 52.6 | 35.1
| CHB | 58.1 | 34.6 | 7.4
| CHD | 43.1 | 47.7 | 9.2
| GIH | 11.9 | 43.6 | 44.6
| LWK | 12.8 | 44.0 | 43.1
| MEX | 43.1 | 39.7 | 17.2
| MKK | 11.5 | 46.8 | 41.7
| TSI | 6.9 | 34.3 | 58.8
| HapMapRevision=28
}}{{PMID Auto
|PMID=22313735
|Title=Identify the association between polymorphisms of BLK and systemic lupus erythematosus through unlabelled probe-based high-resolution melting analysis
}}

{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | Illumina Human 1M}}