>2icuA (A:) observed residues (from ATOM records)
grfaqsqtredylallaedierdipydpepigrynvapgtkvlllserdehlhldpvfwg
yapgpplinarvetaatsrmfkplwqhgraicfadgwfewkqpffiyradgqpifmaaig
stpfergdeaegflivtaaadqglvdihdrrplvlspeaarewmrqeisgkeaseiaasg
cvpanqfswhpvsravgnvknqgaeliqpv