InvertebratesMolecular Sequence DataVertebratesModels, MolecularAmino Acid SequenceMagnetic Resonance SpectroscopyNuclear Magnetic Resonance, BiomolecularMolluscaProtein ConformationEchinodermataProtein Structure, SecondaryCrustaceaUrochordataPhylogenyChordata, NonvertebrateAquatic OrganismsPolychaetaHydrogen BondingBivalviaAnnelidaNitrogen IsotopesArthropodsCnidariaBase SequenceSequence Homology, Amino AcidEvolution, MolecularCiona intestinalisPhotoreceptor Cells, InvertebrateSequence AlignmentGastropodaProtein Structure, TertiaryGanglia, InvertebrateInsectsBiological EvolutionCrystallography, X-RaySpecies SpecificityDrosophila melanogasterMarine BiologyMolecular StructureSea CucumbersProteinsLymnaeaAmphipodaNucleic Acid ConformationOligochaetaBinding SitesHemocytesEcosystemLarvaFood ChainInvertebrate HormonesCaenorhabditis elegansChordataProtein FoldingDrosophila ProteinsProtein BindingDrosophilaPoriferaCephalopodaThermodynamicsBrachyuraPeptidesDNABryozoaModels, ChemicalFishesHorseshoe CrabsSolutionsMytilusDaphniaCloning, MolecularSnailsConserved SequenceMolecular ConformationAstacoideaStructure-Activity RelationshipThoracicaLeechesOceans and SeasComputer SimulationBiodiversityRotiferaCarbohydrate SequenceOctopamineNephropidaeAmidesPeptoidsMutationPlatyhelminthsSequence Analysis, DNADNA, ComplementaryHemolymphAnthozoaTemperatureIsopodaBiomphalariaModels, BiologicalWaterInsect ProteinsSea Urchins