Zhuang, M Differential regulation of two period genes in the Xenopus eye. [electronic resource] - Brain research. Molecular brain research Oct 2000 - 52-64 p. digital Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. ISSN: 0169-328X Standard No.: 10.1016/s0169-328x(00)00177-7 doi Subjects--Topical Terms: Amino Acid SequenceAnimalsCircadian Rhythm--physiologyDarknessDrosophila ProteinsDrosophila melanogaster--geneticsEvolution, MolecularEye--metabolismEye Proteins--chemistryGene Expression RegulationHumansLightMiceMolecular Sequence DataNuclear Proteins--geneticsOrgan SpecificityPeriod Circadian ProteinsPhotoperiodPhylogenyProteins--chemistryRatsRetina--metabolismSequence AlignmentSequence Homology, Amino AcidXenopus ProteinsXenopus laevis--genetics