VDR and tuberculosis: Meanwhile, It has been suggested that the mRNA coded from the TaqI t allele of the VDR gene would be more stable than the mRNA from the T allele of the VDR gene [43], and a previous study revealed that the TaqI SNP in exon 9 near 3′ UTR was in linkage disequilibrium with the ApaI and BsmI polymorphisms [44], which may explain the same protective effect by the two variant alleles of the TaqI and BsmI polymorphisms on tuberculosis.