>1byrA (A:) observed residues (from ATOM records) epsvqvgyspegsarvlvlsaidsaktsirmmaysftapdimkalvaakkrgvdvkivid ergntgrasiaamnyiansgiplrtdsnfpiqhdkviivdnvtvetgsfnftkaaetkns enavviwnmpklaesflehwqdrwnqgrdyrs