2099193 CRMP2 collapsin response mediator protein 2 355 2099196 CRMP2 Collapsin Response Mediator-2 1 2099194 CRMP2 CRMP2 K374A 1 2099195 CRMP2 CRMP2 K374A knock-in 1 2099197 CRMP2 CRMP2hi 1