>3zttA (A:) observed residues (from ATOM records)
klkvvatnsiiaditkniagdkidlhsivpigqdpheyeplpedvkktseadlifyngin
letggnawftklvenakktenkdyfavsdgvdviylegqnekgkedphawlnlengiifa
kniakqlsakdpnnkefyeknlkeytdkldkldkeskdkfnkipaekklivtsegafkyf
skaygvpsayiweinteeegtpeqiktlveklrqtkvpslfvessvddrpmktvsqdtni
piyaqiftdsiaeqgkegdsyysmmkynldkiaeglak