>1ad1B (B:) observed residues (from ATOM records)
tktkimgilnvtpnvesavtrvkammdegadiidvggvstmitveeelnrvlpvveaivg
fdvkisvdtfrsevaeaclklgvdiindqwaglydhrmfqvvakydaeivlmhngngnrd
epvveemltsllaqahqakiagipsnkiwldpgigfaktrneeaevmarldelvateypv
llatsrkrftkemmgydttpverdevtaattaygimkgvravrvhnvelnaklakgidfl
kenenarhnfs