>3a2cK (K:) observed residues (from ATOM records)
vksglqikknaiiddykvtsqvlglgingkvlqifnkrtqekfalkmlqdcpkarrevel
hwrasqcphivrivdvyenlyagrkcllivmecldggelfsriqdrgdqaftereaseim
ksigeaiqylhsiniahrdvkpenllytskrpnailkltdfgfakettsvapevlydksc
dmwslgvimyillcgyppfyspgmktrirmgqyefpnpewsevseevkmlirnllktept
qrmtitefmnhpwimqstkvpqtplhtsrvlke