Allelic distribution of the glycoprotein Ia (α2‐integrin) C807T/G873A dimorphisms among Caucasian venous thrombosis patients and six racial groups

• Published in: British journal of haematology 1999-12, Vol.107 (3), p.563-565
• Main Authors: Dinauer, David M., Friedman, Kenneth D., Hessner, Martin J.
• Format: Article
• Language: English
• Subjects: allele frequency; Alleles; allele‐specific multiplex PCR; alpha‐2 integrin; Antigens, CD - genetics; Biological and medical sciences; collagen receptor; Continental Population Groups - genetics; Gene Frequency; Genotype; glycoprotein Ia; Hematologic and hematopoietic diseases; Humans; Integrin alpha2; Medical sciences; Platelet diseases and coagulopathies; Polymerase Chain Reaction - methods; Venous Thrombosis - genetics
• ISSN: 0007-1048; 1365-2141
• DOI: 10.1046/j.1365-2141.1999.01753.x

Two linked silent dimorphisms, 807 C → T (Phe224) and 873 G → A (Thr246) within the glycoprotein Ia (GPIa) gene have been correlated with low and high platelet receptor density, respectively, and associated with vascular disease. A multiplexed allele‐specific PCR assay was used to determine the GPIa 807T/873A allele frequency among 331 Caucasian venous thrombosis patients and 3571 unrelated individuals belonging to six different racial groups. The 807T/873A allele frequencies were 54%, 51%, 39%, 39%, 38%, 34% and 30% among Native Americans, Hispanics, Caucasians, Caucasian venous thrombosis patients, Asian Indians, African‐Americans, and Koreans, respectively. Significant differences in the GPIa allele frequency among racial groups were revealed which emphasized the need for appropriate controls in studies evaluating the association of GPIa genotype to vascular disease.