AllelesGenotypeHeterozygoteGene FrequencyPolymorphism, GeneticHomozygotePolymorphism, Single NucleotideGenetic Predisposition to DiseaseMutationMethylenetetrahydrofolate Reductase (NADPH2)HaplotypesCase-Control StudiesPolymerase Chain ReactionAmino Acid SubstitutionMolecular Sequence DataRisk FactorsBase SequenceGenetic VariationPhenotypeAmino Acid SequenceSequence Analysis, DNAPolymorphism, Restriction Fragment LengthModels, GeneticPhylogenyPoint MutationGenetic MarkersDNA Mutational AnalysisLinkage DisequilibriumChromosome MappingDNA PrimersEvolution, MolecularMicrosatellite RepeatsMutagenesis, Site-DirectedGenetics, PopulationAsian Continental Ancestry GroupMutation, MissenseSelection, GeneticPedigreeCrosses, GeneticDNAExonsSequence AlignmentGenetic LinkageRecombination, GeneticCodonMutagenesisEscherichia coliChinaSpecies SpecificitySequence Homology, Amino AcidHLA-DRB1 ChainsCloning, MolecularModels, MolecularPromoter Regions, GeneticStructure-Activity RelationshipTime FactorsBinding SitesGenes, DominantGene DeletionGenetic LociEuropean Continental Ancestry GroupCell LineMinisatellite RepeatsHLA-DQ AntigensGenetic Association StudiesCohort StudiesGenotyping TechniquesGenes, RecessiveSequence DeletionHeterozygote DetectionBiological EvolutionJapanApolipoprotein E4IntronsBacterial ProteinsQuantitative Trait LociKineticsGenes, LethalPlasmidsGenetic TestingSuppression, GeneticRecombinant ProteinsPolymorphism, Single-Stranded ConformationalProtein Structure, TertiaryGenome-Wide Association StudyHLA-DR AntigensGenetic Complementation TestApolipoproteins EDNA-Binding ProteinsHepacivirusSaccharomyces cerevisiaeProtein BindingComputer SimulationDNA, BacterialHLA-B AntigensOdds RatioProtein ConformationLikelihood FunctionsGenesAlanine