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Hemoglobin
international journal for hemoglobin research
Volume 36, 2012 - Issue 6
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Short Communication

Influence of BCL11A, HBS1L-MYB, HBBP1 Single Nucleotide Polymorphisms and the HBG2 XmnI Polymorphism On Hb F Levels

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Pages 592-599 | Received 17 Feb 2012, Accepted 23 Jul 2012, Published online: 24 Oct 2012
 

Abstract

In search of genetic alterations responsible for high fetal hemoglobin (Hb F) phenotypes in the population of eastern India, 91 probands were screened for four polymorphisms by sequencing and/or restriction fragment length polymorphism (RFLP) analysis. These are the A>G allele on the rs4895441 locus in the intergenic region between HBS1L and MYB on chromosome 6, the G>A allele on the rs4671393 locus on chromosome 2 (BCL11A gene), the A>C allele on the rs2071348 (HBBP1 gene) and the XmnI polymorphism (rs7482144, –158 position of HBG2) on chromosome 11. We found a significant association (p = 0.002 and 0.0013) of Hb F levels with rs2071348 and rs4895441, respectively. However, the polymorphism rs4671393 gene did not show significant association with Hb F levels (p = 0.0655). As is well known, the XmnI polymorphism (p <0.0001) showed the strongest association.

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