10.  d.149.1       Nitrile hydratase alpha chain  duplication: contains two structural repeats !   
                   Nitrile hydratase alpha chain 4 layers a/b/b/a; inside is a sandwich of two 2-stranded beta-sheets
                   2cz6  d2cz6a1  A:66-77,93-99,102-109,166-172
                   2cz7  d2cz7a1  A:66-77,93-99,102-109,166-172
                   2ahj  d2ahjc_  C:66-77,93-99,102-109,166-172
                   2cz1  d2cz1a1  A:66-77,93-99,102-109,166-172
                   2qdy  d2qdya1  A:67-78,94-100,103-110,167-173
                   2cz0  d2cz0a1  A:66-77,93-99,102-109,166-172
                   2cyz  d2cyza1  A:66-77,93-99,102-109,166-172
                   2d0q  d2d0qa1  A:66-77,93-99,102-109,166-172
                   1ahj  d1ahjc_  C:67-78,94-100,103-110,167-173
                   1ahj  d1ahje_  E:67-78,94-100,103-110,167-173
                   1ahj  d1ahja_  A:67-78,94-100,103-110,167-173
                   1ahj  d1ahjg_  G:67-78,94-100,103-110,167-173