>5lbtB (B:) observed residues (from ATOM records)
gkkvlivyahqepksfngslknvavdelsrqgctvtvsdlyamnlepratdkditgtpev
fnygvetheaykqrslasditdeqkkvreadlvifqfplywfsvpailkgwmdrvlcqgf
afdipgfydsgllqgklallsvttggtaemytktgvngdsryflwplqhgtlhfcgfkvl
apqisfapeiaseeerkgmvaawsqrlqtiwkeepipctahwhfgq