>1x74B (B:) SEQRES residues
magplsglrvvelagigpgphaamilgdlgadvvridrpssvdgisrdamlrnrrivtad
lksdqglelalkliakadvliegyrpgvterlglgpeecakvndrliyarmtgwgqtgpr
sqqaghdinyislngilhaigrgderpvpplnlvgdfgggsmfllvgilaalwerqssgk
gqvvdaamvdgssvliqmmwamratgmwtdtrganmldggapyydtyecadgryvavgai
epqfyaamlaglgldaaelppqndrarwpelrallteafashdrdhwgavfansdacvtp
vlafgevhnephiierntfyeanggwqpmpaprfsrtassqprppaatidieavltdwdg