title: A new allele, HLA-DQB1*04:09.
abstract: The novel allele HLA-DQB1*04:09 differs from DQB1*04:02:01 by three nonsynonymous nucleotide substitutions in exon 2.
authors.affiliation: Laboratory of Immunogenetics and Transplant Biology, IME Foundation at Polyclinic of Tor Vergata, Rome, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Testi
authors.forename: M
authors.initials: M
authors.lastname: Troiano
authors.forename: A
authors.initials: A
authors.lastname: Guagnano
authors.forename: G
authors.initials: G
authors.lastname: Testa
authors.forename: M
authors.initials: M
authors.lastname: Andreani
mesh_terms: D000483:Alleles; D001483:Base Sequence; D005091:Exons; D059866:HLA-DQ beta-Chains / Q000235:genetics*; D006650:Histocompatibility Testing; D006801:Humans; D007558:Italy; D008969:Molecular Sequence Data; D020641:Polymorphism, Single Nucleotide; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000235:genetics* / Q000276:immunology; D016415:Sequence Alignment; D017422:Sequence Analysis, DNA
chemical_list: D059866:HLA-DQ beta-Chains; C069051:HLA-DQB1 antigen
keywords: human leukocyte antigen-DQB1*04:09; new allele; sequence-based typing