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New DRB1* alleles (HLA-DRB1*1135, DRB1*1430 and DRB1*1433) and a confirmatory sequence (DRB1*1133)
J Tréjaut1, D Hobart, A Kennedy
1Tissue Typing, Australian Red Cross Blood Service-NSW Division, Sydney, Australia. jtrejaut@arcbs.redcross.org.au
Abstract:
Three new DRB1 alleles (DRB1*1135, DRB1*1430 and DRB1*1433) and a confirmatory sequence (DRB1*1133) have been identified after following up unusual or novel polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) patterns during routine typing of the DRB1*03,*08,*11,*12,*13 and *14 allele groups. Of the new alleles found and described in this paper, two alleles were initially detected by the PCR-RFLP method which produced unexpected restriction polymorphism (DRB1*1133 and DRB1*1135) while the remaining two were found after following up rare allele typings from this technique (DRB1*1430 and DRB1*1433).