› 3mt1

X-ray diffraction
2.5Å resolution

Crystal structure of putative carboxynorspermidine decarboxylase protein from Sinorhizobium meliloti

Released:
DOI: 10.2210/pdb3mt1/pdb
PDB entry 3mt1 coloured by chain, front view.
PDB entry 3mt1 coloured by chain, side view.
PDB entry 3mt1 coloured by chain, top view.
Source organism: Sinorhizobium meliloti
Entry authors: Chang C, Xu X, Cui H, Chin S, Savchenko A, Edwards A, Joachimiak A, Midwest Center for Structural Genomics (MCSG)

Function and Biology Details

Reaction catalysed: 
Carboxynorspermidine = bis(3-aminopropyl)amine + CO(2)
Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-187932 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Carboxynorspermidine/carboxyspermidine decarboxylase Chains: A, B
Molecule details ›
Chains: A, B
Length: 365 amino acids
Theoretical weight: 41.66 KDa
Source organism: Sinorhizobium meliloti
Expression system: Escherichia coli
UniProt:
  • Canonical: Q92TG9 (Residues: 1-365; Coverage: 100%)
Gene names: SM_b21631, nspC
Sequence domains: Pyridoxal-dependent decarboxylase, C-terminal sheet domain
Structure domains:

Ligands and Environments

1 bound ligand:
Ligand SO4 2 x SO4
1 modified residue:
Ligand MSE 22 x MSE

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 19-ID
Spacegroup: P212121
Unit cell:
a: 69.769Å b: 75.773Å c: 129.801Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.194 0.19 0.256
Expression system: Escherichia coli

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