A: The variant NC_000021.9:g.31667331A>T in gene SOD1 is classified as 'Likely_pathogenic' for Abnormal_central_motor_function|Amyotrophic_lateral_sclerosis_1,_autosomal_recessive. Molecular consequence: SO:0001583: missense_variant. Variant type: single_nucleotide_variant. Disease database links: Human_Phenotype_Ontology:HP:0011442,MedGen:C4023354|MedGen:C5686324. Review status: criteria provided, single submitter.