› 3kpb

X-ray diffraction
1.6Å resolution

Crystal Structure of the CBS domain pair of protein MJ0100 in complex with 5 -methylthioadenosine and S-adenosyl-L-methionine.

Released:
DOI: 10.2210/pdb3kpb/pdb
PDB entry 3kpb coloured by chain, front view.
PDB entry 3kpb coloured by chain, side view.
PDB entry 3kpb coloured by chain, top view.
Source organism: Methanocaldococcus jannaschii
Primary publication:
Binding of S-methyl-5'-thioadenosine and S-adenosyl-L-methionine to protein MJ0100 triggers an open-to-closed conformational change in its CBS motif pair.
Lucas M, Encinar JA, Arribas EA, Oyenarte I, García IG, Kortazar D, Fernández JA, Mato JM, Martínez-Chantar ML, Martínez-Cruz LA
J Mol Biol 396 800-20 (2010)
PMID: 20026078

Function and Biology Details

Reaction catalysed: 
Hydrogen sulfide + L-aspartate 4-semialdehyde + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H(+) = L-homocysteine + H(2)O + 2 oxidized ferredoxin [iron-sulfur] cluster
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-176433 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
L-aspartate semialdehyde sulfurtransferase Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 122 amino acids
Theoretical weight: 13.54 KDa
Source organism: Methanocaldococcus jannaschii
Expression system: Escherichia coli
UniProt:
  • Canonical: Q57564 (Residues: 388-509; Coverage: 24%)
Gene name: MJ0100
Sequence domains: CBS domain
Structure domains: CBS-domain

Ligands and Environments

2 bound ligands:
Ligand SAM 3 x SAM
Ligand GOL 5 x GOL
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID23-2
Spacegroup: P1
Unit cell:
a: 46.987Å b: 49.704Å c: 59.12Å
α: 80.11° β: 75.85° γ: 64.04°
R-values:
R R work R free
0.204 0.202 0.229
Expression system: Escherichia coli

Quick links

Citations

1 review citation

CBS domains: Ligand binding sites and conformational variability.
Ereño-Orbea et al. (2013)
28 other articles

2 mentions without citation

The second messenger c-di-AMP inhibits the osmolyte uptake system OpuC in Staphylococcus aureus.
Schuster et al. (2016)
1 more