>3q18A (A:) observed residues (from ATOM records)
datrtlgkgsqppgpvpegliriysmrfcpyshrtrlvlkakdirhevvninlrnkpewy
ytkhpfghipvletsqsqliyesviaceylddaypgrklfpydpyerarqkmllelfskv
phltkeclvalrsgrestnlkaalrqefsnleeileyqnttffggtsismidyllwpwfe
rldvygildcvshtpalrlwisamkwdptvsallmdksifqgflnlyfqnnpnafd