>1u4cB (B:) observed residues (from ATOM records)
mqivqieqapkdyisdikiipskslllitswdgsltvykfdiqaknvdllqslrykhpll
ccnfidntdlqiyvgtvqgeilkvdligspsfqaltnneanlgicrickygddkliaasw
dglievidprnygdgviavknlnsnntkvknkiftmdtnssrlivgmnnsqvqwfrlplc
eddngtieesglkyqirdvallpkeqegyacssidgrvaveffddsskrfafrchrlnlk
dtnlaypvnsiefsprhkflytagsdgiiscwnlqtrkkiknfakfnedsvvkiacsdni
lclatsddtfktnaatielnassiyiifdye