Spastic Paraplegia, HereditaryParaplegiaParaparesis, SpasticMuscle SpasticityPedigreeAdaptor Protein Complex 4Genes, RecessiveGenes, DominantAdenosine TriphosphatasesParaparesis, Tropical SpasticCerebellar AtaxiaReflex, BabinskiAgenesis of Corpus CallosumSpasmLod ScoreSpinal Cord IschemiaMutation, MissensePelizaeus-Merzbacher DiseaseChromosomes, Human, Pair 2Cerebral PalsyMutationHuman CharacteristicsHereditary Sensory and Motor NeuropathyQuadriplegiaOptic AtrophyAge of OnsetPhenotypeGenetic LinkageGenetic HeterogeneitySyndromeExomeSpinal CordLeukocyte L1 Antigen ComplexSpinocerebellar DegenerationsIntellectual DisabilityConsanguinitySpinal Cord InjuriesATP-Dependent ProteasesMyelin Proteolipid ProteinChromosome MappingCorpus CallosumDNA Mutational AnalysisHeterozygoteMotor NeuronsMetalloendopeptidasesTuberculosis, SpinalGTP PhosphohydrolasesParaparesisAortic Aneurysm, ThoracicAxonsSex Chromosome AberrationsMicrotubulesSpinal Cord CompressionMotor Neuron DiseaseOptic Atrophies, HereditaryHydrocephalusMagnetic Resonance ImagingLaminectomyX ChromosomeNeural ConductionHaplotypesChromosomes, Human, Pair 14Equinus DeformityCodon, NonsenseChromosomes, Human, Pair 15