SMTL ID : 9qat.2 (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- FUC: 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose

NAG-NAG-FUC.1: 8 residues within 4Å: Chain A: E.403, N.416, T.418, D.421, E.522, G.523, P.524, Q.527 No protein-ligand interaction detected (PLIP)

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

NAG-FUC.2: 4 residues within 4Å: Chain A: T.478, N.480, T.482, H.483 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:T.478 Water bridges: A:E.161, A:T.478

2 x PG4: TETRAETHYLENE GLYCOL(Non-functional Binders)

PG4.3: 5 residues within 4Å: Chain A: Q.444, R.453, D.462, Y.465, L.466 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:Q.444 Water bridges: A:D.462 PG4.10: 9 residues within 4Å: Chain A: A.334, W.335, Y.338, H.365, Y.369, R.381, H.388, E.389 Ligands: 01.9 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:Y.338 Water bridges: A:A.334, A:R.500

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

NAG.4: 7 residues within 4Å: Chain A: N.45, T.47, E.49, N.50, R.53, D.324, R.326 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:E.49, A:N.50 Water bridges: A:T.47

1 x ZN: ZINC ION(Non-covalent)

ZN.5: 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 CA: CALCIUM ION(Non-covalent)

CA.6: 3 residues within 4Å: Chain A: E.262, N.263, D.354 5 PLIP interactions: 2 interactions with chain A, 3 Ligand-Water interactions Metal complexes: A:E.262, A:D.354, H2O.4, H2O.8, H2O.8

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

PEG.7: 1 residues within 4Å: Chain A: R.295 2 PLIP interactions: 2 interactions with chain A Water bridges: A:R.295, A:R.295

1 x PGE: TRIETHYLENE GLYCOL(Non-functional Binders)

PGE.8: 4 residues within 4Å: Chain A: Q.286, G.287, W.288, H.292 No protein-ligand interaction detected (PLIP)

1 x 01: quinaprilat

01.9: 19 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, N.494, T.496, Y.498, Y.501, F.505 Ligands: ZN.5, PG4.10 13 PLIP interactions: 13 interactions with chain A Hydrophobic interactions: A:F.435, A:F.490, A:T.496, A:Y.501, A:F.505 Hydrogen bonds: A:Q.259, A:H.331 Salt bridges: A:H.331, A:H.361, A:H.365, A:K.489, A:H.491 pi-Stacking: A:F.435

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

ACT.11: 2 residues within 4Å: Chain A: E.176, D.177 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:E.176

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

CL.12: 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
B

Angiotensin-converting enzyme, soluble form

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