00351nam a22001337a 4500020001500000082001700015100001600032245007000048250000800118260004700126300001100173654001700184700001600201  a0521386489  a612.015bPER  aPerutz, Max  aMechanisms of cooperativity and allosteric regulation in proteins  aNil  aNew YorkbCambridge University Pressc1990  a101 p.  aBiochemistry  aPerutz, Max