{{Genotype
|rsid=2200733
|allele1=C
|allele2=C
|magnitude=1.9
|repute=Good
|summary=0.86x decreased risk of Atrial Fibrillation
}}
This is the normal version which makes the heart form properly and makes people less likely to get Atrial Fibrillation (quivering of the top chambers of the heart caused by chaotic electrical signals) and less likely to have an Ischemic Stroke (blocked blood flow to the brain). But also check the other SNP nearby ([[rs10033464]]) which slightly affects Atrial Fibrillation too. [[23andMe]] gave this a 4 star confidence rating as it has been heavily studied. It has been confirmed in Europeans and Asians.