Ann Lab Med.  2020 Jul;40(4):337-340. 10.3343/alm.2020.40.4.337.

First Korean Case of Partial D DBS-1

Affiliations
  • 1Department of Laboratory Medicine, Soonchunhyang University Hospital Cheonan, Soonchunhyang University College of Medicine, Cheonan, Korea.
  • 2Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, Korea. duck.cho@skku.edu
  • 3Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.

Abstract

No abstract available.


Figure

  • Fig. 1 Results of the genetic analysis of the proband and her family members. (A) Long-range PCR with primers located in non-Rhesus box sequences. A 2,778-bp fragment was amplified by PCR, indicating the presence of a hybrid RHD gene (lanes I-1, II-1, and II-2). (B) Pedigree, Rh phenotypes, and RHD genotypes of the Korean DBS-1 family. The genotypes and phenotypes of the DBS-1 family were determined using combined data from sequencing analysis, hybrid Rhesus box PCR, and serological analysis. Black circles indicate the DBS-1 phenotype. The proband is indicated by a black arrow. Total RHD deletion is denoted as “d” in the genotype. (C) Part of the RHD nucleotide sequence in DBS reported by Wagner, et al. [3] and this case. In both cases, the 5′ breakpoint region was located between the RHD-specific c.642-249T and the first RHCE-specific nucleotide, c.667G (blue arrow). The 3′ breakpoint region, located between the last RHCE-specific nucleotide and the first RHD-specific nucleotide of intron 5, differed for each case; it was located between c.800 and c.801+101 in the case reported by Wagner, et al. [3] and between c.801+1463 and c.801+1505 in the current case (white arrow).


Reference

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