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Crystal structure of the cytoplasmic domain of a bacterial chemoreceptor from Thermotoga maritima

X-ray diffraction
2.5Å resolution
PDB entry 2ch7 coloured by chain, front view.
PDB entry 2ch7 coloured by chain, side view.
PDB entry 2ch7 coloured by chain, top view.
Source organism: Thermotoga maritima
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: Methyl-accepting chemotaxis protein 2
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Multimeric state: hetero dimer
Accessible surface area: 31023.26 Å2
Buried surface area: 14078.7 Å2
Dissociation area: 6,913.12 Å2
Dissociation energy (ΔGdiss): 130.57 kcal/mol
Dissociation entropy (TΔSdiss): 16.04 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-194728
Hetero dimeric assembly 1 of PDB entry 2ch7 coloured by chemically distinct molecules, front view.
Hetero dimeric assembly 1 of PDB entry 2ch7 coloured by chemically distinct molecules, side view.
Hetero dimeric assembly 1 of PDB entry 2ch7 coloured by chemically distinct molecules, top view.
    Assembly 1
Confidence : 98%
No. subunits : 2
Symmetry : C2
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3DComplex & QSbio predictionx
No. subunits : 2
Symmetry : C2
Evidence : Interface geometry is similar to that of 3zx6_1 (32% id)

Macromolecules

Methyl-accepting chemotaxis protein 2
Chain: A
Length: 309 amino acids
Theoretical weight: 33.4 KDa
Source organism: Thermotoga maritima
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q9X0M7 (Residues: 222-529; Coverage: 58%)
Gene names: TM_1143, mcp2
Pfam: Methyl-accepting chemotaxis protein (MCP) signalling domain
InterPro:
CATH: Methyl-accepting chemotaxis protein
SCOP: Methyl-accepting chemotaxis protein (MCP) signaling domain
Methyl-accepting chemotaxis protein 2 in PDB entry 2ch7, assembly 1, front view.
Methyl-accepting chemotaxis protein 2 in PDB entry 2ch7, assembly 1, side view.
Methyl-accepting chemotaxis protein 2 in PDB entry 2ch7, assembly 1, top view.
PDBe-KB: UniProt Coverage View: Q9X0M7  
130920406080100120140160180200220240260280300
 
100200300
UniProt
Q9X0M7
Chains
Domains
Secondary structure
Flexibility predictions
Early folding residue predictions
Ligand binding sites
Interaction interfaces
Sequence conservation
Molecule details ›

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Methyl-accepting chemotaxis protein 2
Chain: B
Length: 309 amino acids
Theoretical weight: 33.41 KDa
Source organism: Thermotoga maritima
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q9X0M7 (Residues: 222-529; Coverage: 58%)
Gene names: TM_1143, mcp2
Pfam: Methyl-accepting chemotaxis protein (MCP) signalling domain
InterPro:
CATH: Methyl-accepting chemotaxis protein
SCOP: Methyl-accepting chemotaxis protein (MCP) signaling domain
Methyl-accepting chemotaxis protein 2 in PDB entry 2ch7, assembly 1, front view.
Methyl-accepting chemotaxis protein 2 in PDB entry 2ch7, assembly 1, side view.
Methyl-accepting chemotaxis protein 2 in PDB entry 2ch7, assembly 1, top view.
PDBe-KB: UniProt Coverage View: Q9X0M7  
130920406080100120140160180200220240260280300
 
100200300
UniProt
Q9X0M7
Chains
Domains
Secondary structure
Flexibility predictions
Early folding residue predictions
Ligand binding sites
Interaction interfaces
Sequence conservation
Molecule details ›

Search similar proteins

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