Variations in angiotensin-converting enzyme gene insertion/deletion polymorphism in Indian populations of different ethnic origins.
The pattern of angiotensin-converting enzyme (ACE) gene insertion/deletion (I/D) polymorphism in the Indian population is poorly known. In order to determine the status of the polymorphism, young unrelated male army recruits were screened. The population had cultural and linguistic differences and lived in an environment that varied significantly from one region to another. Analysis of the genotype, showed higher frequency of the insertion allele in four of the five groups i.e. I allele frequency was significantly higher (P < 0.05) in Dogras, Assamese and Kumaonese. The deletion allele frequency was comparatively higher in the fifth group that belonged to Punjab. A correlation was observed between the genotype and enzyme activity. Involvement of a single D allele in the genotype enhanced the activity up to 37.56   3.13%. The results suggested ethnic heterogeneity with a significant gene cline with higher insertion allele frequency. Such population-based data on various polymorphisms can ultimately be exploited in pharmacogenomics.
Pasha
M A Qadar
MA
Functional Genomics Unit, Centre for Biochemical Technology, Mall Road, Delhi 110 007, India. qpasha@cbt.res.in
Khan
Amjad P
AP
Kumar
Ratan
R
Ram
Rekh B
RB
Grover
Surinder K
SK
Srivastava
Kaushal K
KK
Selvamurthy
William
W
Brahmachari
Samir K
SK
D005006:Ethnicity / Q000235:genetics*; D005787:Gene Frequency; D006801:Humans; D007194:India; D008297:Male; D007703:Peptidyl-Dipeptidase A / Q000235:genetics*; D011110:Polymorphism, Genetic
D007703:Peptidyl-Dipeptidase A