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MecR1 unbound extracellular antibiotic-sensor domain.

X-ray diffraction
1.8Å resolution
PDB entry 2iwb coloured by chain, front view.
PDB entry 2iwb coloured by chain, side view.
PDB entry 2iwb coloured by chain, top view.
Source organisms:
Assembly composition:
hetero dimer (preferred)
Entry contents: 2 distinct polypeptide molecules

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Methicillin resistance mecR1 protein and peptide
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Multimeric state: hetero dimer
Accessible surface area: 11458.18 Å2
Buried surface area: 1691.91 Å2
Dissociation area: 309.79 Å2
Dissociation energy (ΔGdiss): 2.29 kcal/mol
Dissociation entropy (TΔSdiss): 4.86 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-140899

Macromolecules

Methicillin resistance mecR1 protein
Chain: A
Length: 246 amino acids
Theoretical weight: 29.25 KDa
Source organism: Staphylococcus aureus subsp. aureus N315
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Best match: P0A0B0 (Residues: 340-585)
Gene names: SA0039, mecR, mecR1
Methicillin resistance mecR1 protein in PDB entry 2iwb, assembly 1, front view.
Methicillin resistance mecR1 protein in PDB entry 2iwb, assembly 1, side view.
Methicillin resistance mecR1 protein in PDB entry 2iwb, assembly 1, top view.
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TETRAPEPTIDE
Chain: B
Length: 4 amino acids
Theoretical weight: 431 Da
Source organism: synthetic construct
Expression system: Escherichia coli BL21(DE3)
TETRAPEPTIDE in PDB entry 2iwb, assembly 1, front view.
TETRAPEPTIDE in PDB entry 2iwb, assembly 1, side view.
TETRAPEPTIDE in PDB entry 2iwb, assembly 1, top view.
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