{{Rsnum
|rsid=3781719
|Gene=CALCA
|Chromosome=11
|position=14972978
|Orientation=minus
|GMAF=0.3145
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(C;C)
|geno2=(C;T)
|geno3=(T;T)
|Gene_s=CALCA
}}{{ population diversity
| geno1=(C;C)
| geno2=(C;T)
| geno3=(T;T)
| CEU | 10.6 | 43.4 | 46.0
| HCB | 1.5 | 23.4 | 75.2
| JPT | 8.0 | 40.7 | 51.3
| YRI | 19.7 | 43.5 | 36.7
| ASW | 17.5 | 38.6 | 43.9
| CHB | 1.5 | 23.4 | 75.2
| CHD | 2.8 | 26.6 | 70.6
| GIH | 6.9 | 40.6 | 52.5
| LWK | 19.1 | 49.1 | 31.8
| MEX | 17.2 | 56.9 | 25.9
| MKK | 16.7 | 55.1 | 28.2
| TSI | 8.8 | 41.2 | 50.0
| HapMapRevision=28
}}[[rs3781719]] is a SNP, also known as T-692C, in the calcitonin-related polypeptide alpha [[CALCA]] gene.

A study of 293 Chinese subjects with essential [[hypertension]] (EH) and 208 controls concluded that [[rs3781719]](C) allele carriers were associated with increased EH risk (odds ratio 2.093, CI: 1.317-3.326, p<0.01).{{PMID|18959118}}

{{PMID Auto
|PMID=23237777
|Title=Association study of the calcitonin gene-related polypeptide-alpha (CALCA) and the receptor activity modifying 1 (RAMP1) genes with migraine.
}}

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