Table 1.

Localization of SNPs and identification of haplotypes of the β₂AR gene

 Nucleotide number is based on the first nucleotide of the start codon being +1. Frequencies of the haplotypes were determined in the indicated populations as described in Methods. Allele, the two nucleotide possibilities at each SNP position; Ca, Caucasian; A-A, African-American; As, Asian; H-L, Hispanic-Latinos; 5′, 5′ upstream of β₂AR ORF; syn, synonymous SNP.