The solution structure of Lac repressor headpiece 62 complexed to a symmetrical lac operator.Spronk, C.A., Bonvin, A.M., Radha, P.K., Melacini, G., Boelens, R., Kaptein, R.
(1999) Structure Fold.Des. 7: 1483-1492
- PubMed: 10647179
- PubMed Abstract:
- Structure of the Complex of Lac Repressor Headpiece and an 11 Base-Pair Half- Operator Determined by Nuclear Magnetic Resonance Spectroscopy and Restrained Molecular Dynamics
Chuprina, V.P.,Rullmann, J.A.,Lamerichs, R.M.,Van Boom, J.H.,Boelens, R.,Kaptein, R.
(1993) J.Mol.Biol. 234: 446
- Formation of the Hinge Helix in the Lac Repressor is Induced Upon Binding to the Lac Operator
Spronk, C.A.E.M.,Slijper, M.,Van Boom, J.H.,Kaptein, R.,Boelens, R.
(1996) Nat.Struct.Mol.Biol. 3: 916
- Backbone and Sidechain Dynamics of Lac Repressor Headpiece (1-56) and its Complex with DNA
Slijper, M.,Boelens, R.,Davis, A.L.,Konings, R.N.H.,Van Der Marel, G.A.,Van Bloom, J.H.
(1997) Biochemistry 36: 249
- Refined Structure of Lac Repressor Headpiece (1-56) Determined by Relaxtaion Matrix Calculations from 2D and 3D Noe Data: Change of Tertiary Structure Upon Binding to Lac Operator
Slijper, M.,Bonvin, A.M.J.J.,Boelens, R.,Kaptein, R.
(1996) J.Mol.Biol. 259: 761
Lactose repressor protein (Lac) controls the expression of the lactose metabolic genes in Escherichia coli by binding to an operator sequence in the promoter of the lac operon. Binding of inducer molecules to the Lac core domain induces changes in te ...
Lactose repressor protein (Lac) controls the expression of the lactose metabolic genes in Escherichia coli by binding to an operator sequence in the promoter of the lac operon. Binding of inducer molecules to the Lac core domain induces changes in tertiary structure that are propagated to the DNA-binding domain through the connecting hinge region, thereby reducing the affinity for the operator. Protein-protein and protein-DNA interactions involving the hinge region play a crucial role in the allosteric changes occurring upon induction, but have not, as yet, been analyzed in atomic detail.
Bijvoet Center for Biomolecular Research, Utrecht University, The Netherlands.