title: A new HLA-DQB1 sequence, DQB1*02:01:04, discovered during an external quality assessment exercise.
abstract: HLA-DQB1*02:01:04 differs from DQB1*02:01:01 by one nucleotide (G>A) at position 303 in exon 2 resulting in a silent substitution (codon 69 - GAG >GAA), conserved glutamate.
authors.affiliation: H & I Laboratory, NHS Blood & Transplant, Sheffield, UK.
authors.forename: D
authors.initials: D
authors.lastname: Smillie
authors.forename: J
authors.initials: J
authors.lastname: Street
authors.forename: M
authors.initials: M
authors.lastname: Bengtsson
authors.forename: S
authors.initials: S
authors.lastname: Corbin
authors.forename: C
authors.initials: C
authors.lastname: Darke
mesh_terms: D005091:Exons / Q000235:genetics*; D005260:Female; D059866:HLA-DQ beta-Chains / Q000235:genetics*; D006801:Humans; D008297:Male; D017354:Point Mutation; D011785:Quality Assurance, Health Care
chemical_list: D059866:HLA-DQ beta-Chains; C069051:HLA-DQB1 antigen