>1b24A (A:) observed residues (from ATOM records)
vsgisayllgliigdgglyklkykgnrseyrvvitqksenlikqhiaplmqflidelnvk
skiqivkgdtryelrvsskklyyyfanmlerirlfnmreqiafikglyvaegdktlkrlr
iwnknkalleivsrwlnnlgvrntihlddhrhgvyvlnislrdrikfvhtils