>2fp1B (B:) observed residues (from ATOM records)
tsqlaelvdaaaerlevadpvaafkwraqlpiedsgrveqqlaklgedarsqhidpdyvt
rvfddqirateaieysrfsdwklnpasappeppdlsasrsaidslnnrmlsqiwshwsll
sapscaaqldrakrdivrsrhldslyqralttatqsycqalppa