Molecular interconversion of cold-sensitive cytosolic 3,3',5-tri-iodo-L-thyronine-binding proteins from human erythrocytes: effect of cold, heat and pH treatments.


Cytosolic 3,3',5-tri-iodo-L-thyronine-binding proteins (CTBP I, II and IV species) from human red blood cells undergo rapid loss of activity at low temperatures. Cold treatment of CTBPs was accompanied by dissociation of the polymeric protein to the 60 kDa inactive monomer. Re-activation of the cold-inactivated CTBP IV by warming resulted in association of… (More)


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