>2z0pA (A:) observed residues (from ATOM records)
aavilesiflkrsqqkkktsplnfkkrlflltvhklsyyeydfergrrgskkgsidveki
tcvetvvpeknppperqimeqisiierfpypfqvvydegplyvfspteelrkrwihqlkn
virynsdlvqkyhpcfwidgqylccsqtaknamgcqil