>4lefA (A:) observed residues (from ATOM records)
sfdptgytlahehlhidlsgfknnvdcrldqyaficqemndlmtrgvrnviemtnrymgr
naqfmldvmretginvvactgyyqdaffpehvatrsvqelaqemvdeieqgidgtelkag
iiaeigtsegkitpleekvfiaaalahnqtgrpisthtsfstmgleqlallqahgvdlsr
vtvghcdlkdnldnilkmidlgayvqfdtigknsyypdekriamlhalrdrgllnrvmls
mditrrshlkanggygydyllttfipqlrqsgfsqadvdvmlrenpsqffq