SPG21 GI:189217847 spastic paraplegia 21 isoform b 1 mgeikvspdy nwfrgtvplk kiivddddsk iwslydagpr sircpliflp 50 51 pvsgtadvff rqilaltgwg yrviavhlfg aslggflaqk faeythkspr 100 101 vhslilcnsf sdtsifnqtw tansfwlmpa fmlkkivlgn fssgpvdpmm 150 151 adaidfmvdr leslgqsela srltlncqns yvephkirdi pvtimdvfdq 200 201 salsteakee myklypnarr ahlktggnfp ylcrsaevnl yvqihllqfh 250 251 gtkyaaidps mvsaeelevq kgslgisqee q