SMTL ID : 9qat.1 (1 other biounit)

Human angiotensin-1 converting enzyme N-domain in complex with quinaprilat

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.20 Å

Oligo State

monomer

Ligands

1 x NAG- NAG: 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose(Post Translational Modification)

NAG-NAG.1: 5 residues within 4Å: Chain A: N.45, T.47, E.49, N.50, R.326 No protein-ligand interaction detected (PLIP)

1 x NAG- NAG- BMA- FUC: beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose

NAG-NAG-BMA-FUC.2: 6 residues within 4Å: Chain A: E.403, N.416, E.522, G.523, P.524, Q.527 1 PLIP interactions: 1 interactions with chain A Water bridges: A:E.522 Hydrogen bonds: A:E.522

1 x NAG- FUC: alpha-L-fucopyranose-(1-6)-2-acetamido-2-deoxy-beta-D-glucopyranose(Post Translational Modification)

NAG-FUC.3: 4 residues within 4Å: Chain A: T.478, N.480, T.482, H.483 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:T.482, A:T.478 Water bridges: A:N.480, A:N.480

1 x ZN: ZINC ION(Non-covalent)

ZN.4: 4 residues within 4Å: Chain A: H.361, H.365, E.389 Ligands: 01.9 3 PLIP interactions: 3 interactions with chain A Metal complexes: A:H.361, A:H.365, A:E.389

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

NA.5: 3 residues within 4Å: Chain A: E.262, N.263, D.354 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:N.263, A:D.354

6 x PEG: DI(HYDROXYETHYL)ETHER(Non-functional Binders)

PEG.6: 4 residues within 4Å: Chain A: R.96, D.189, G.190, F.191 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:R.96 PEG.7: 3 residues within 4Å: Chain A: W.201, R.381 Ligands: EDO.8 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:R.90, A:R.381 PEG.10: 6 residues within 4Å: Chain A: F.228, R.231, A.232, R.235, V.268, V.269 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:R.235, A:R.235 PEG.12: 6 residues within 4Å: Chain A: A.58, S.61, Q.62, L.98, S.100 Ligands: ACT.16 1 PLIP interactions: 1 interactions with chain A Water bridges: A:S.100 PEG.18: 3 residues within 4Å: Chain A: F.271, W.580, Q.584 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:Q.584 PEG.19: 1 residues within 4Å: Chain A: R.295 1 PLIP interactions: 1 interactions with chain A Water bridges: A:R.295

3 x EDO: 1,2-ETHANEDIOL(Non-functional Binders)

EDO.8: 8 residues within 4Å: Chain A: R.381, G.382, A.383, N.384, P.385, H.388 Ligands: PEG.7, P6G.14 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:G.382 EDO.11: 2 residues within 4Å: Chain A: F.33, R.344 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:D.342, A:R.344, A:R.344 EDO.13: 3 residues within 4Å: Chain A: S.138, P.141, K.321 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:S.138, A:S.138, A:K.321

1 x 01: quinaprilat

01.9: 18 residues within 4Å: Chain A: Q.259, H.331, A.332, S.333, H.361, E.362, H.365, E.389, F.435, K.489, F.490, H.491, T.496, Y.498, Y.501, F.505 Ligands: ZN.4, P6G.14 16 PLIP interactions: 16 interactions with chain A Hydrophobic interactions: A:F.435, A:F.490, A:F.490, A:T.496, A:Y.501, A:F.505 Hydrogen bonds: A:Q.259, A:H.331, A:Y.498, A:Y.501 Salt bridges: A:H.331, A:H.361, A:H.365, A:K.489, A:H.491 pi-Stacking: A:F.435

1 x P6G: HEXAETHYLENE GLYCOL(Non-functional Binders)

P6G.14: 12 residues within 4Å: Chain A: S.35, V.36, S.39, A.334, W.335, H.365, Y.369, R.381, H.388, E.389 Ligands: EDO.8, 01.9 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:S.39 Water bridges: A:R.500

3 x ACT: ACETATE ION(Non-functional Binders)

ACT.15: 3 residues within 4Å: Chain A: G.316, S.317, R.326 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:G.316 Salt bridges: A:R.326 ACT.16: 4 residues within 4Å: Chain A: L.32, S.61, A.65 Ligands: PEG.12 No protein-ligand interaction detected (PLIP) ACT.17: 2 residues within 4Å: Chain A: D.85, Q.87 No protein-ligand interaction detected (PLIP)

1 x CL: CHLORIDE ION(Non-functional Binders)

CL.20: 6 residues within 4Å: Chain A: W.201, Y.202, P.385, P.497, I.499, R.500 Ligand excluded by PLIP

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Gregory, K.S. et al., Molecular basis of domain-specific angiotensin I-converting enzyme inhibition by the antihypertensive drugs enalaprilat, ramiprilat, trandolaprilat, quinaprilat and perindoprilat. Febs J. (2025)

Release Date

2025-09-03

Peptides

Angiotensin-converting enzyme, soluble form: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Angiotensin-converting enzyme, soluble form

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