>3tt7E (E:) observed residues (from ATOM records)
iptviaydiysrllkdriimlgsaiddnvansivsqllflaaedpekeislyinspggsi
tagmaiydtmqfikpkvsticigmaasmgafllaagekgkryalpnsevmihqplggaqg
qateieiaakrilllrdklnkvlaertgqplevierdtdrdnfksaeealeyglidkilt