Spastic Paraplegia 61, Autosomal Recessive, also known as hereditary spastic paraplegia 61, is related to paraplegia and spastic paraplegia 20, autosomal recessive, and has symptoms including muscle spasticity An important gene associated with Spastic Paraplegia 61, Autosomal Recessive is ARL6IP1 (ADP Ribosylation Factor Like GTPase 6 Interacting Protein 1). Affiliated tissues include liver, and related phenotypes are spasticity and difficulty walking