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A MODEL OF THE TERNARY COMPLEX FORMED BETWEEN MARA, THE ALPHA-CTD OF RNA POLYMERASE AND DNA

Solution NMR
PDB entry 1xs9 coloured by chain, front view.
PDB entry 1xs9 coloured by chain, side view.
PDB entry 1xs9 coloured by chain, top view.
Source organism: Escherichia coli
Assembly composition:
hetero tetramer (preferred)
Entry contents: 2 distinct polypeptide molecules
2 distinct DNA molecules

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Assemblies

Assembly 1 (preferred)
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Assembly Name: DNA-directed RNA polymerase subunit alpha and Multiple antibiotic resistance protein MarA and DNA
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Multimeric state: hetero tetramer
Accessible surface area: 16190.34 Å2
Buried surface area: 5910.59 Å2
Dissociation area: 598.98 Å2
Dissociation energy (ΔGdiss): -5.19 kcal/mol
Dissociation entropy (TΔSdiss): 11.14 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-114824

Macromolecules

Multiple antibiotic resistance protein MarA
Chain: A
Length: 132 amino acids
Theoretical weight: 15.72 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P0ACH5 (Residues: 1-127; Coverage: 100%)
Gene names: JW5249, b1531, marA
Pfam: Helix-turn-helix domain
InterPro:
CATH: Homeodomain-like
SCOP: Computational models partly based on experimental data
Multiple antibiotic resistance protein MarA in PDB entry 1xs9, assembly 1, front view.
Multiple antibiotic resistance protein MarA in PDB entry 1xs9, assembly 1, side view.
Multiple antibiotic resistance protein MarA in PDB entry 1xs9, assembly 1, top view.
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DNA-directed RNA polymerase subunit alpha
Chain: D
Length: 84 amino acids
Theoretical weight: 9.29 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P0A7Z4 (Residues: 249-329; Coverage: 25%)
Gene names: JW3257, b3295, pez, phs, rpoA, sez
Pfam: Bacterial RNA polymerase, alpha chain C terminal domain
InterPro: RNA polymerase, alpha subunit, C-terminal
CATH: 5' to 3' exonuclease, C-terminal subdomain
DNA-directed RNA polymerase subunit alpha in PDB entry 1xs9, assembly 1, front view.
DNA-directed RNA polymerase subunit alpha in PDB entry 1xs9, assembly 1, side view.
DNA-directed RNA polymerase subunit alpha in PDB entry 1xs9, assembly 1, top view.
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DNA chain B
Name: 5'-D(P*GP*AP*TP*TP*TP*AP*GP*CP*AP*AP*AP*AP*CP*GP*TP*GP*GP*CP*AP*T)-3'
Representative chains: B
Length: 20 nucleotides
Theoretical weight: 6.18 KDa
5'-D(P*GP*AP*TP*TP*TP*AP*GP*CP*AP*AP*AP*AP*CP*GP*TP*GP*GP*CP*AP*T)-3' in PDB entry 1xs9, assembly 1, front view.
5'-D(P*GP*AP*TP*TP*TP*AP*GP*CP*AP*AP*AP*AP*CP*GP*TP*GP*GP*CP*AP*T)-3' in PDB entry 1xs9, assembly 1, side view.
5'-D(P*GP*AP*TP*TP*TP*AP*GP*CP*AP*AP*AP*AP*CP*GP*TP*GP*GP*CP*AP*T)-3' in PDB entry 1xs9, assembly 1, top view.
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DNA chain C
Name: 5'-D(P*AP*TP*GP*CP*CP*AP*CP*GP*TP*TP*TP*TP*GP*CP*TP*AP*AP*AP*TP*C)-3'
Representative chains: C
Length: 20 nucleotides
Theoretical weight: 6.08 KDa
5'-D(P*AP*TP*GP*CP*CP*AP*CP*GP*TP*TP*TP*TP*GP*CP*TP*AP*AP*AP*TP*C)-3' in PDB entry 1xs9, assembly 1, front view.
5'-D(P*AP*TP*GP*CP*CP*AP*CP*GP*TP*TP*TP*TP*GP*CP*TP*AP*AP*AP*TP*C)-3' in PDB entry 1xs9, assembly 1, side view.
5'-D(P*AP*TP*GP*CP*CP*AP*CP*GP*TP*TP*TP*TP*GP*CP*TP*AP*AP*AP*TP*C)-3' in PDB entry 1xs9, assembly 1, top view.
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