SMTL ID : 1tw8.2 (1 other biounit)

HincII bound to Ca2+ and cognate DNA GTCGAC

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.80 Å

Oligo State

homo-dimer

Ligands

3 x CA: CALCIUM ION(Non-functional Binders)(Non-covalent)

CA.1: 2 residues within 4Å: Chain B: G.1, C.2 No protein-ligand interaction detected (PLIP) CA.2: 4 residues within 4Å: Chain B: G.8 Chain C: D.113, D.126, V.127 4 PLIP interactions: 3 interactions with chain C, 1 Ligand-Water interactions Metal complexes: C:D.113, C:D.126, C:V.127, H2O.5 CA.4: 5 residues within 4Å: Chain A: G.8 Chain D: D.113, D.126, V.127, K.128 4 PLIP interactions: 3 interactions with chain D, 1 Ligand-Water interactions Metal complexes: D:D.113, D:D.126, D:V.127, H2O.7

2 x NA: SODIUM ION(Non-functional Binders)

NA.3: 6 residues within 4Å: Chain B: C.7, G.8 Chain C: D.126, K.128, I.141, I.142 1 PLIP interactions: 1 interactions with chain C Hydrogen bonds: C:Q.206 NA.5: 6 residues within 4Å: Chain A: C.7, G.8 Chain D: D.126, K.128, I.141, I.142 3 PLIP interactions: 3 interactions with chain D Hydrogen bonds: D:D.126, D:K.128 Water bridges: D:Y.167

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Etzkorn, C. et al., Ca2+ binding in the active site of HincII: implications for the catalytic mechanism. Biochemistry (2004)

Release Date

2004-08-10

Peptides

Hinc II endonuclease: CD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

C
C

D
D

Hinc II endonuclease

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