>2y00B (B:) observed residues (from ATOM records)
aellsqqweagmsllmalvvllivagnvlviaaigstqrlqtltnlfitslacadlvvgl
lvvpfgatlvvrgtwlwgsflcelwtsldvlcvtasietlcviaidrylaitspfryqsl
mtrarakviictvwaisalvsflpimmhwwrdedpqalkcyqdpgccdfvtnrayaiass
iisfyipllimifvalrvyreakeqirkidraskrktsrvmlmrehkalktlgiimgvft
lcwlpfflvnivnvfnrdlvpdwlfvafnwlgyansamnpiiycrspdfrkafkrlla