1GTO
HIGH RESOLUTION STRUCTURE OF A HYPERSTABLE HELICAL BUNDLE PROTEIN MUTANT
Summary for 1GTO
| Entry DOI | 10.2210/pdb1gto/pdb |
| Descriptor | ROP (2 entities in total) |
| Functional Keywords | transcription regulation, turn, helix packing, crystal contacts |
| Biological source | Escherichia coli |
| Total number of polymer chains | 3 |
| Total formula weight | 20975.11 |
| Authors | Agrawal, V.,Predki, P.,Regan, L.,Brunger, A.T. (deposition date: 1996-04-23, release date: 1997-01-27, Last modification date: 2024-02-07) |
| Primary citation | Predki, P.F.,Agrawal, V.,Brunger, A.T.,Regan, L. Amino-acid substitutions in a surface turn modulate protein stability. Nat.Struct.Biol., 3:54-58, 1996 Cited by PubMed Abstract: A surface turn position in a four-helix bundle protein, Rop, was selected to investigate the role of turns in protein structure and stability. Although all twenty amino acids can be substituted at this position to generate a correctly folded protein, they produce an unusually large range of thermodynamic stabilities. Moreover, the majority of substitutions give rise to proteins with enhanced thermal stability compared to that of the wild type. By introducing the same twenty mutations at this position, but in a simplified context, we were able to deconvolute intrinsic preferences from local environmental effects. The intrinsic preferences can be explained on the basis of preferred backbone dihedral angles, but local environmental context can significantly modify these effects. PubMed: 8548455DOI: 10.1038/nsb0196-54 PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (1.82 Å) |
Structure validation
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