>3iucA (A:) observed residues (from ATOM records)
gtvvgidlgttyscvgvfkngrveiiandqgnritpsyvaftpegerligdaaknqltsn
pentvfdakrligrtwndpsvqqdikflpfkvvekktkpyiqvdigggqtktfapeeisa
mvltkmketaeaylgkkvthavvtvpayfndaqrqatkdagtiaglnvmriineptaaai
aygldkregeknilvfdlgggtfdvslltidngvfevvatngdthlggedfdqrvmehfi
klykkktgkdvrkdnravqklrrevekakralssqhqarieiesfyegedfsetltrakf
eelnmdlfrstmkpvqkvledsdlkksdideivlvggstripkiqqlvkeffngkepsrg
inpdeavaygaavqagvls