ElastinTropoelastinDesmosineBody CompositionElastic TissueIsodesmosinePancreatic ElastaseProtein-Lysine 6-OxidaseLigamentsCollagenAortic Stenosis, SupravalvularAmino AcidsCutis LaxaAortaFatty AcidsElasticityMatrix Metalloproteinase 12Williams SyndromeExtracellular MatrixPhospholipidsBase CompositionCattleConnective TissueMolecular Sequence DataAminopropionitrileLipidsMicrofibrilsSwineAmino Acid SequenceCells, CulturedLungFibroblastsExtracellular Matrix ProteinsBody Weight