>2d1iA (A:) observed residues (from ATOM records)
tlrfaefedfpetsepvwilgrkysiftekdeilsdvasrlwftyrknfpaiggtgptsd
tgwgcmlrcgqmifaqalvcrhlgrdwrwtqrkrqpdsyfsvlnafidrkdsyysihqia
qmgvgegksigqwygpntvaqvlkklavfdtwsslavhiamdntvvmeeirrlcrtsvpc
apspwrplvlliplrlgltdineayvetlkhcfmmpqslgviggkpnsahyfigyvgeel
iyldphttqpaveptdgcfipdesfhcqhppcrmsiaeldpsiavgffckteddfndwcq
qvkklsllggalpmfelveqqpshlacpdvlnlsldssd