>1fwtB (B:) observed residues (from ATOM records)
kflviagpcaieseelllkvgeeikrlsekfkevefvfkssfdkanrssihsfrghgley
gvkalrkvkeefglkittdiheswqaepvaevadiiqipaflcrqtdlllaaaktgravn
vkkgqflapwdtknvveklkfggakeiyltergttfgynnlvvdfrslpimkqwakviyd
athsvqlpgmrefifpliraavavgcdgvfmethpepekalsdastqlplsqlegiieai
leirevaskyyeti