>4knnB (B:) observed residues (from ATOM records)
swgyrehngpihwkeffpiadgdqqspieiktkevkydsslrplsikydpssakiisnsg
hsfnvdfddtenksvlrggpltgsyrlrqvhlhwgsaddhgsehivdgvsyaaelhvvhw
nsdkypsfveaahepdglavlgvflqigepnsqlqkitdtldsikekgkqtrftnfdlls
llppswdywtypgsltvppllesvtwivlkqpinissqqlakfrsllctaegeaaaflvs
nhrppqplkgrkvrasfh