>2y03A (A:) observed residues (from ATOM records)
aellsqqweagmsllmalvvllivagnvlviaaigstqrlqtltnlfitslacadlvvgl
lvvpfgatlvvrgtwlwgsflcelwtsldvlcvtasietlcviaidrylaitspfryqsl
mtrarakviictvwaisalvsflpimmhwwrdedpqalkcyqdpgccdfvtnrayaiass
iisfyipllimifvalrvyreakeqirsrvmlmrehkalktlgiimgvftlcwlpfflvn
ivnvfnrdlvpdwlfvafnwlgyansamnpiiycrspdfrkafkrlla