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TitleSubstitution of the Methionine Axial Ligand of the T1 Copper for the Fungal-like Phenylalanine Ligand (M298F) Causes Local Structural Perturbations that Lead to Thermal Instability and Reduced Catalytic Efficiency of the Small Laccase from Streptomyces coelicolor A3(2).
Journal, issue, pagesAcs Omega, Vol. 7, Page 6184-6194, Year 2022
Publish dateNov 27, 2020 (structure data deposition date)
AuthorsZovo, K. / Pupart, H. / Van Wieren, A. / Gillilan, R.E. / Huang, Q. / Majumdar, S. / Lukk, T.
External linksAcs Omega / PubMed:35224382
MethodsX-ray diffraction
Resolution2 - 2.7 Å
Structure data

PDB-7b2k:
Structure of the M298F mutant of the Streptomyces coelicolor small laccase T1 copper axial ligand.
Method: X-RAY DIFFRACTION / Resolution: 2.2 Å

PDB-7b4y:
Structure of the M298L mutant of the Streptomyces coelicolor small laccase T1 copper axial ligand
Method: X-RAY DIFFRACTION / Resolution: 2.19 Å

PDB-7bdn:
Structure of the Streptomyces coelicolor small laccase - cubic crystal form
Method: X-RAY DIFFRACTION / Resolution: 2.7 Å

PDB-7bfm:
Structure of the M198F M298F double mutant of the Streptomyces coelicolor small laccase T1 copper site
Method: X-RAY DIFFRACTION / Resolution: 2 Å

Chemicals

ChemComp-CU:
COPPER (II) ION

ChemComp-HOH:
WATER

ChemComp-PG4:
TETRAETHYLENE GLYCOL / precipitant*YM

Source
  • streptomyces coelicolor (strain atcc baa-471 / a3(2) / m145) (bacteria)
KeywordsOXIDOREDUCTASE / small laccase / T1 copper / point mutation / M298F / M298L / cubic crystal form / double mutant / M198F M298F

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