SMTL ID : 1aeq.1

VARIATION IN THE STRENGTH OF A CH TO O HYDROGEN BOND IN AN ARTIFICIAL PROTEIN CAVITY (2-ETHYLIMIDAZOLE)

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.10 Å

Oligo State

monomer

Ligands

1 x HEM: PROTOPORPHYRIN IX CONTAINING FE(Non-covalent)

HEM.1: 21 residues within 4Å: Chain A: P.44, V.47, R.48, W.51, P.145, D.146, A.147, L.171, M.172, A.174, H.175, L.177, G.178, K.179, T.180, H.181, N.184, S.185, L.232, T.234 Ligands: 2EZ.2 22 PLIP interactions: 21 interactions with chain A, 1 Ligand-Water interactions, Hydrophobic interactions: A:V.47, A:R.48, A:W.51, A:W.51, A:P.145, A:L.171, A:A.174, A:T.180 Hydrogen bonds: A:K.179, A:H.181, A:N.184, A:S.185, A:S.185 Water bridges: A:D.37, A:R.48, A:H.181 Salt bridges: A:R.48, A:H.181, A:H.181 pi-Stacking: A:W.51 Metal complexes: A:H.175, H2O.1

1 x 2EZ: 2-ETHYLIMIDAZOLE(Non-covalent)

2EZ.2: 9 residues within 4Å: Chain A: H.175, T.180, G.191, F.202, M.230, M.231, L.232, D.235 Ligands: HEM.1 3 PLIP interactions: 3 interactions with chain A Hydrophobic interactions: A:H.175, A:F.202 Hydrogen bonds: A:D.235

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Musah, R.A. et al., Artificial protein cavities as specific ligand-binding templates: characterization of an engineered heterocyclic cation-binding site that preserves the evolved specificity of the parent protein. J.Mol.Biol. (2002)

Release Date

1997-09-04

Peptides

CYTOCHROME C PEROXIDASE: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

CYTOCHROME C PEROXIDASE

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