4X1L:
reference: Structural basis for mutation-induced destabilization of profilin 1 in ALS., Boopathy S, Silvas TV, Tischbein M, Jansen S, Shandilya SM, Zitzewitz JA, Landers JE, Goode BL, Schiffer CA, Bosco DA, Proc Natl Acad Sci U S A. 2015 Jun 8. pii: 201424108. PMID: 26056300

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).