>7b7rB (B:) observed residues (from ATOM records)
eleldeqqrkrleafltqkqkvgelkdddfekiselgagnggvvfkvshkpsglvmarkl
ihleikpairnqiirelqvlhecnspyivgfygafysdgeisicmehmdggsldqvlkka
gripeqilgkvsiavikgltylrekhkimhrdvkpsnilvnsrgeiklcdfgvsgqlids
matrsymsperlqgthysvqsdiwsmglslvemavgrypigsgsmaifelldyivneppp
klpsgvfslefqdfvnkcliknpaeradlkqlmvhafikrsdaeevdfagwlcstigln