>4kq6B (B:) observed residues (from ATOM records)
qnydgsklrvgiiharwnrviidalvkgaidrmlslgvkeeniivetvpgsfelpygskr
faekqakkgepldvvipigvlikgstmhfeyisdsttqaimnlqdkinipvifglltclt
eeqalaragidegktmhnhgedwgaaavematkfgana