>4br1A (A:) observed residues (from ATOM records)
rkffvggnwkmngrkqslgeligtlnaakvpadtevvcapptayidfarqkldpkiavaa
qncykvtngaftgeispgmikdcgatwvvlghserrhvfgesdeligqkvahalaeglgv
iacigekkvvfeqtkviadnvkdwskvvlayepvwatpqqaqevheklrgwlksnvsdav
aqstriiyggsvtgatckelasqpdvdgflvggaslkpefvdiinakq