>1a3vA (A:) observed residues (from ATOM records)
lhkepatlikaidgdtcklmykgqpmtfrlllvdtpetkhpkkgvekygpeasaftkkmv
enakkievefdkgqrtdkygrglayiyadgkmvnealvrqglakvayvykpnntheqhlr
kseaqakkeklniws