>3iam4 (4:) observed residues (from ATOM records)
vmtlnvggvlrlmvtlsgeevlevvphigylhtgfektmehrtylqnitytprmdylhsf
ahdlayalavekllgavvppraetirvilnelsrlashlvflgtglldlgaltpffyafr
eretildlfewvtgqrfhhnyiriggvkedlpeefvpelkkllevlphrideyealfaes
pifyerargvgvippevaidlgltggslrasgvnydvrkaypysgyetytfdvplgergd
vfdrmlvriremresvkiikqalerlepgpvrdpnpqitppprhlletsmeaviyhfkhy
tegfhppkgevyvptesargelgyyivsdggsmpyrvkvrapsfvnlqslpyackgeqvp
dmvaiiasldpvmgdvdr