>gi|189217847 spastic paraplegia 21 isoform b [Homo sapiens] MGEIKVSPDYNWFRGTVPLKKIIVDDDDSKIWSLYDAGPRSIRCPLIFLP PVSGTADVFFRQILALTGWGYRVIAVHLFGASLGGFLAQKFAEYTHKSPR VHSLILCNSFSDTSIFNQTWTANSFWLMPAFMLKKIVLGNFSSGPVDPMM ADAIDFMVDRLESLGQSELASRLTLNCQNSYVEPHKIRDIPVTIMDVFDQ SALSTEAKEEMYKLYPNARRAHLKTGGNFPYLCRSAEVNLYVQIHLLQFH GTKYAAIDPSMVSAEELEVQKGSLGISQEEQ