1QYD | A:157-196,A:220-284,A:298-313; B:157-196,B:220-284,B:298-313; C:157-196,C:220-284,C:298-313; D:157-196,D:220-284,D:298-313 | CRYSTAL STRUCTURES OF PINORESINOL-LARICIRESINOL AND PHENYLCOUMARAN BENZYLIC ETHER REDUCTASES, AND THEIR RELATIONSHIP TO ISOFLAVONE REDUCTASES |