Association of Complement Receptor 2 Gene Polymorphisms with Susceptibility to Osteonecrosis of the Femoral Head in Systemic Lupus Erythematosus

Figure 1

CR2 SNP locations and haplotype blocks. (a) The CR2 gene consists of 20 exons. Eight SNPs in the 5′ UTR, exon 10, and several intron regions were genotyped. (b) and of each SNP pair are shown. Two haplotype blocks were constructed based on the strength of LD among SNP pairs. The first 5 SNPs formed 24 kb block 1 and next SNPs formed block 2 (see Table 5).

(a)

(b)