title: PCR-RFLP typing detects new HLA-DRB1 alleles: DRB1*13022, DRB1*1336 and DRB1*1435.
abstract: It is difficult to resolve all heterozygous combinations of the HLA-DRB1*03, *08, *11, *12, *13 and *14 allele group in a one-step generic HLA-DRB1 typing system. Therefore, it is common to employ a secondary technique utilizing group-specific primers to amplify this group of alleles separately from the other HLA-DRB1, -DRB3, -DRB4 and -DRB5 alleles. This paper describes a polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method for broad typing of the HLA-DRB1*03, *08, *11, *12, *13 and *14 alleles which, as well as being time-efficient and cost-effective, has so far allowed the detection of 10 new alleles. The new alleles were identified after following up unusual or novel PCR-RFLP patterns. Of the 10 novel alleles found so far with this method, seven have been described previously while three, DRB1*13022, DRB1*1336 and DRB1*1435, are presented here.
authors.affiliation: Tissue Typing Department, Australian Red Cross Blood Service, NSW Division, Sydney.
authors.forename: J
authors.initials: J
authors.lastname: Tréjaut
authors.forename: A
authors.initials: A
authors.lastname: Kennedy
authors.forename: D
authors.initials: D
authors.lastname: Hobart
authors.forename: T
authors.initials: T
authors.lastname: Le
authors.forename: W D
authors.initials: WD
authors.lastname: Greville
authors.forename: G
authors.initials: G
authors.lastname: Ng
authors.forename: A
authors.initials: A
authors.lastname: Taverniti
authors.forename: H
authors.initials: H
authors.lastname: Dunckley
mesh_terms: D000483:Alleles; D001483:Base Sequence; D004247:DNA / Q000235:genetics; D006684:HLA-DR Antigens / Q000235:genetics*; D059811:HLA-DRB1 Chains; D006801:Humans; D007125:Immunogenetics / Q000379:methods; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction / Q000379:methods*; D012150:Polymorphism, Restriction Fragment Length; D015183:Restriction Mapping; D016415:Sequence Alignment
chemical_list: D006684:HLA-DR Antigens; D059811:HLA-DRB1 Chains; D004247:DNA