>3gc3A (A:) observed residues (from ATOM records)
gtrvfkkaspngkltvylgkrdfvdhidlvepvdgvvlvrrvyvtltcafryggltfrkd
lfvanvqsfppkpltrlqerlikklgehaypftfeippnlpcsvtlqacgvdyevkafca
enleekihkrnsvrlvirkvqyaperpgpqptaettrqflmsdkplhleasldkeiyyhg
episvnvhvtnntnktvkkikisvrqyadiclfntaqykcpvameeaddtvapsstfckv
ytltpflakrglaldgklkhedtnlasstllreganreilgiivsykvkvklvvsrggdv
avelpftlmhpkpkdtnlieldivfedfa