6kp0

X-ray diffraction
2.1Å resolution

Crystal structure of two domain M1 zinc metallopeptidase E323A mutant bound to L-arginine

Released:

Function and Biology Details

Reaction catalysed:
Release of an N-terminal amino acid, Xaa-|-Yaa- from a peptide, amide or arylamide. Xaa is preferably Ala, but may be most amino acids including Pro (slow action). When a terminal hydrophobic residue is followed by a prolyl residue, the two may be released as an intact Xaa-Pro dipeptide.
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-193307 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Aminopeptidase N Chains: A, B
Molecule details ›
Chains: A, B
Length: 474 amino acids
Theoretical weight: 51.55 KDa
Source organism: Deinococcus radiodurans R1
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q9RVZ5 (Residues: 36-472; Coverage: 93%)
Gene name: DR_0875
Sequence domains:

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RRCAT INDUS-2 BEAMLINE PX-BL21
Spacegroup: P1
Unit cell:
a: 50.632Å b: 57.204Å c: 67.049Å
α: 89.86° β: 85.08° γ: 68.57°
R-values:
R R work R free
0.232 0.231 0.264
Expression system: Escherichia coli BL21(DE3)