>2ch1B (B:) SEQRES residues
mkftpppaslrnpliipekimmgpgpsncskrvltamtntvlsnfhaelfrtmdevkdgl
ryifqtenratmcvsgsahagmeamlsnlleegdrvliavngiwaeravemserygadvr
tiegppdrpfsletlaraielhqpkclflthgdsssgllqplegvgqichqhdcllivda
vaslcgvpfymdkweidavytgaqkvlgappgitpisispkaldvirnrrtkskvfywdl
lllgnywgcydepkryhhtvasnlifalrealaqiaeeglenqikrriecaqilyeglgk
mgldifvkdprhrlptvtgimipkgvdwwkvsqyamnnfslevqgglgptfgkawrvgim
gecstvqkiqfylygfkeslkathpdyifeesngfh