>3pp1A (A:) observed residues (from ATOM records)
melkdddfekiselgagnggvvfkvshkpsglvmarklihleikpairnqiirelqvlhe
cnspyivgfygafysdgeisicmehmdggsldqvlkkagripeqilgkvsiavikgltyl
rekhkimhrdvkpsnilvnsrgeiklcdfgvsgqlidsmansfvgtrsymsperlqgthy
svqsdiwsmglslvemavgrypipppdakelelmfpmaifelldyivnepppklpsgvfs
lefqdfvnkcliknpaeradlkqlmvhafikrsdaeevdfagwlcstigln