>1u90B (B:) observed residues (from ATOM records)
alhkvimvgsggvgksaltlqfmydefvedyeptkadsyrkkvvldgeevqidildtagq
edyaairdnyfrsgegflcvfsitemesfaatadfreqilrvkedenvpfllvgnksdle
dkrqvsveeaknradqwnvnyvetsaktranvdkvffdlmreirar