CLOCK ProteinsCircadian RhythmMutationCircadian ClocksBiological ClocksPoint MutationMutation, MissenseARNTL Transcription FactorsPeriod Circadian ProteinsFrameshift MutationGerm-Line MutationCryptochromesPedigreeMutation RateBase SequenceExonsMolecular Sequence DataHeterozygoteAmino Acid SubstitutionPhotoperiodCircadian Rhythm Signaling Peptides and ProteinsPolymerase Chain ReactionAllelesDNA Mutational AnalysisAmino Acid SequenceTranscription FactorsPolymorphism, Single-Stranded ConformationalMutagenesis, Site-DirectedSequence Analysis, DNAGenotypeMutagenesisHomozygoteCodon, NonsenseNuclear Receptor Subfamily 1, Group D, Member 1Nuclear ProteinsGenes, RecessivePhenotypeLightDNA PrimersFlavoproteinsProtein Structure, TertiarySequence DeletionDNA-Binding ProteinsGenes, DominantGene Expression RegulationDrosophila ProteinsCell LineGenetic TestingSuppression, GeneticChromosome MappingSequence Homology, Amino AcidEscherichia coliModels, Molecular