>2a2iB (B:) observed residues (from ATOM records)
kflviagpcaieseelllkvgeeikrlsekfkevefvfkssfdkanrssihsfrghgley
gvkalrkvkeefglkittdiheswqaepvaevadiiqipaflcrqtdlllaaaktgravn
vkkgqflapwdtknvveklkfggakeiyltergttfgynnlvvdfrslpimkqwakviyd
athsvqlpggmrefifpliraavavgcdgvfmethpepekalsdastqlplsqlegiiea
ileirevaskyyeti