00345nam a2200133 a 450000500170000002000150001708200130003210000180004524500410006325000120010426000390011630000360015570000200019120251203110703.0  a0716743396  a572bNEl  aNelson, David  aLehninger Principles of Biochemistry  a4th ed.  aNew YorkbW.H.Freeman & Co.,c2005  axxv,1119p.eAppendixc32 cm. HB  aCox, Michael M.