>1c4zB (B:) observed residues (from ATOM records)
npylrlkvrrdhiiddalvrlemiamenpadlkkqlyvefegeqgvdeggvskeffqlvv
eeifnpdigmftydestklfwfnpssfetegqftligivlglaiynncildvhfpmvvyr
klmgkkgtfrdlgdshpvlyqslkdlleyegnveddmmitfqisqtdlfgnpmmydlken
gdkipitnenrkefvnlysdyilnksvekqfkafrrgfhmvtnesplkylfrpeeielli
cgsrnldfqaleetteydggytrdsvlirefweivhsftdeqkrlflqfttgtdrapvgg
lgklkmiiakngpdterlptshtcfnvlllpeysskeklkerllkaitya