>3p6j_A mol:protein length:142 de novo designed beta-trefoil architecture with symmetric primary structureHHHHHHFNLPPGNYKKGDTHIQFQISPEGNGEVLLKSTETGQYLRINPDGTVDGTRDRSDTHIQFQISPEGNGEVLLKSTETGQYLRINPDGTVDGTRDRSDTHIQFQISPEGNGEVLLKSTETGQYLRINPDGTVDGTRDR