Spastic Paraplegia, HereditaryParaplegiaParaparesis, SpasticMuscle SpasticityPedigreeGenes, RecessiveGenes, DominantAdaptor Protein Complex 4Adenosine TriphosphatasesParaparesis, Tropical SpasticCerebellar AtaxiaLod ScoreReflex, BabinskiAgenesis of Corpus CallosumMutationSpasmPhenotypeMutation, MissenseSpinal Cord IschemiaChromosomes, Human, Pair 2Genetic LinkagePelizaeus-Merzbacher DiseaseCerebral PalsyAge of OnsetHuman CharacteristicsGenetic HeterogeneityHereditary Sensory and Motor NeuropathyQuadriplegiaChromosome MappingOptic AtrophySyndromeExomeConsanguinitySpinal CordIntellectual DisabilityLeukocyte L1 Antigen ComplexHeterozygoteDNA Mutational AnalysisSpinocerebellar DegenerationsSpinal Cord InjuriesATP-Dependent ProteasesMyelin Proteolipid ProteinCorpus CallosumMotor NeuronsMetalloendopeptidasesTuberculosis, SpinalAxonsGTP PhosphohydrolasesParaparesisAortic Aneurysm, ThoracicSex Chromosome AberrationsHaplotypesMicrotubulesSpinal Cord CompressionMotor Neuron DiseaseMolecular Sequence DataGenotypeGenetic MarkersOptic Atrophies, HereditaryX ChromosomeMagnetic Resonance ImagingHydrocephalusNeural ConductionLaminectomyMembrane ProteinsChromosomes, Human, Pair 15ExonsCodon, NonsenseChromosomes, Human, Pair 14Equinus DeformityMembrane Transport ProteinsFamily Health