PMID- 12826372 OWN - NLM STAT- MEDLINE DCOM- 20040220 LR - 20190906 IS - 0198-8859 (Print) IS - 0198-8859 (Linking) VI - 64 IP - 7 DP - 2003 Jul TI - Associations between measles antibody levels and the protein structure of class II human leukocyte antigens. PG - 696-707 AB - In this study, we describe associations between variation in human leukocyte antigen (HLA) DP and DQ amino acid sequences and low measles antibody levels after measles immunization. We tested serum samples from 242 children for measles immunoglobulin G antibodies. We performed class II HLA typing and examined associations between DQ and DP exon 2 amino acid sequences and antibody levels. No DP amino acid variants were associated with seronegativity. However, 11 DQA and 6 DQB amino acid variants were associated with seronegativity (p<0.005). These amino acid variants were highly correlated, and the significant DQA amino acids were only found in alleles *0201, *0301, *0401, *0501, and *0601. Two of the amino acids associated with measles seronegativity were located in predicted binding pockets of the DQ molecule; one was present in the leader sequence. Among the DQB alleles, all of the amino acid variants associated with seronegativity were present only in the DQB*0201 allele. Two of the amino acids associated with seronegativity were located in predicted binding pockets of the DQ molecule; two were located in the leader sequence. Our data suggest that specific DQA and DQB amino acid variations are associated with measles seronegativity after vaccination. FAU - St Sauver, Jennifer L AU - St Sauver JL AD - Department of Health Sciences Research, Mayo Clinic and Foundation, Mayo Vaccine Research Group, Rochester, MN 55905, USA. stsauver.jennifer@mayo.edu FAU - Schaid, Daniel J AU - Schaid DJ FAU - Vierkant, Robert A AU - Vierkant RA FAU - Jacobson, Robert M AU - Jacobson RM FAU - Jacobsen, Steven J AU - Jacobsen SJ FAU - Ovsyannikova, Inna G AU - Ovsyannikova IG FAU - Poland, Gregory A AU - Poland GA LA - eng GR - AR 30582/AR/NIAMS NIH HHS/United States GR - N01-AI-45240/AI/NIAID NIH HHS/United States GR - R01-2AI33144/AI/NIAID NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Hum Immunol JT - Human immunology JID - 8010936 RN - 0 (Antibodies, Viral) RN - 0 (HLA-DP Antigens) RN - 0 (HLA-DQ Antigens) RN - 0 (Measles Vaccine) SB - IM MH - Adolescent MH - *Alleles MH - Amino Acid Sequence MH - Antibodies, Viral/*blood MH - Child MH - Child, Preschool MH - Enzyme-Linked Immunosorbent Assay MH - *Genes, MHC Class II MH - HLA-DP Antigens/*chemistry/genetics MH - HLA-DQ Antigens/*chemistry/genetics MH - Histocompatibility Testing MH - Humans MH - Measles Vaccine/*immunology MH - Measles virus/drug effects/genetics/*immunology MH - Molecular Sequence Data MH - Polymerase Chain Reaction EDAT- 2003/06/27 05:00 MHDA- 2004/02/21 05:00 CRDT- 2003/06/27 05:00 PHST- 2003/06/27 05:00 [pubmed] PHST- 2004/02/21 05:00 [medline] PHST- 2003/06/27 05:00 [entrez] AID - S0198885903000879 [pii] AID - 10.1016/s0198-8859(03)00087-9 [doi] PST - ppublish SO - Hum Immunol. 2003 Jul;64(7):696-707. doi: 10.1016/s0198-8859(03)00087-9.