>4mxzB (B:) observed residues (from ATOM records)
daweipreslrlevklgqgcfgevwmgtwngttrvaiktlkpgtmspeaflqeaqvlkkl
rheklvqlyavvseepiyivmeymskgslldflkgetgkylrlpqlvdmaaqiasgmayv
ermnyvhrdlraanilvgenlvckvadfglarlifpikwtapeaalygrftiksdvwsfg
illtelttkgrvpypgmvnrevldqvergyrmpcppecpeslhdlmcqcwrkepeerptf
eylqafledyftstepqyqpgenl