Spastic Paraplegia 77, Autosomal Recessive, also known as hereditary spastic paraplegia 77, is related to fars2 deficiency and combined oxidative phosphorylation deficiency 14. An important gene associated with Spastic Paraplegia 77, Autosomal Recessive is FARS2 (Phenylalanyl-TRNA Synthetase 2, Mitochondrial). Related phenotypes are progressive spastic paraplegia and seizure