>2prgB (B:) observed residues (from ATOM records)
esadlralakhlydsyiksfpltkakarailtviydmnslmqskevairifqgcqfrsve
avqeiteyaksipgfvnldlndqvtllkygvheiiytmlaslmnkdgvlisegqgfmtre
flkslrkpfgdfmepkfefavkfnalelddsdlaifiaviilsgdrpgllnvkpiediqd
nllqalelqlklnhpessqlfakllqkmtdlrqivtehvqllqvikktetdmslhpllqe
iykdly