PFN2 GI:16753215 profilin 2 isoform a 1 magwqsyvdn lmcdgccqea aivgycdaky vwaataggvf qsitpieidm 50 51 ivgkdregff tngltlgakk csvirdslyv dgdctmdirt ksqggeptyn 100 101 vavgragrvl vfvmgkegvh ggglnkkays makylrdsgf