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The Crystal structure of Haemophilus influenzae O-acetylserine sulfhydrylase at 1.85A resolution

X-ray diffraction
1.856Å resolution
PDB entry 4ho1 coloured by chain, front view.
PDB entry 4ho1 coloured by chain, side view.
PDB entry 4ho1 coloured by chain, top view.
Source organism: Haemophilus influenzae Rd KW20
Assembly composition:
homo dimer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Cysteine synthase
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Multimeric state: homo dimer
Accessible surface area: 22322.61 Å2
Buried surface area: 4995.85 Å2
Dissociation area: 2,086.44 Å2
Dissociation energy (ΔGdiss): 3.53 kcal/mol
Dissociation entropy (TΔSdiss): 13.74 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-155240

Macromolecules

Cysteine synthase
Chain: X
Length: 316 amino acids
Theoretical weight: 33.65 KDa
Source organism: Haemophilus influenzae Rd KW20
Expression system: Escherichia coli
UniProt:
  • Canonical: P45040 (Residues: 1-316; Coverage: 100%)
Gene names: HI_1103, cysK
Pfam: Pyridoxal-phosphate dependent enzyme
InterPro:
CATH: Rossmann fold
Cysteine synthase in PDB entry 4ho1, assembly 1, front view.
Cysteine synthase in PDB entry 4ho1, assembly 1, side view.
Cysteine synthase in PDB entry 4ho1, assembly 1, top view.
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