SMTL ID : 3fju.1

Ascaris suum carboxypeptidase inhibitor in complex with human carboxypeptidase A1

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.60 Å

Oligo State

hetero-1-1-mer

Ligands

10 x ZN: ZINC ION(Non-covalent)(Non-functional Binders)

ZN.1: 4 residues within 4Å: Chain A: H.68, E.71, H.195 Chain B: L.65 5 PLIP interactions: 1 interactions with chain B, 4 interactions with chain A Metal complexes: B:L.65, A:H.68, A:E.71, A:E.71, A:H.195 ZN.2: 2 residues within 4Å: Chain A: H.119 Ligands: ACT.19 2 PLIP interactions: 1 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:H.119, H2O.5 ZN.3: 3 residues within 4Å: Chain A: H.302 Ligands: CAC.13, ACT.18 2 PLIP interactions: 1 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:H.302, H2O.7 ZN.4: 2 residues within 4Å: Chain A: H.306 Ligands: CAC.13 2 PLIP interactions: 1 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:H.306, H2O.7 ZN.5: 3 residues within 4Å: Chain A: E.15, D.19 Ligands: CAC.14 3 PLIP interactions: 3 interactions with chain A Metal complexes: A:E.15, A:D.19, A:D.19 ZN.6: 2 residues within 4Å: Ligands: CAC.11, CAC.12 No protein-ligand interaction detected (PLIP) ZN.7: 4 residues within 4Å: Chain A: H.30 Ligands: CAC.11, CAC.12, ACT.17 1 PLIP interactions: 1 interactions with chain A Metal complexes: A:H.30 ZN.8: 1 residues within 4Å: Chain A: D.4 5 PLIP interactions: 2 interactions with chain A, 3 Ligand-Water interactions Metal complexes: A:D.4, A:D.4, H2O.1, H2O.1, H2O.1 ZN.9: 2 residues within 4Å: Chain A: E.16 Ligands: CAC.14 3 PLIP interactions: 1 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:E.16, H2O.8, H2O.9 ZN.21: 2 residues within 4Å: Chain B: E.35, H.36 4 PLIP interactions: 2 interactions with chain B, 2 Ligand-Water interactions Metal complexes: B:E.35, B:H.36, H2O.20, H2O.21

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

NA.10: 1 residues within 4Å: Chain A: S.171 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:S.171

4 x CAC: CACODYLATE ION(Non-covalent)

CAC.11: 5 residues within 4Å: Chain A: H.30 Ligands: ZN.6, ZN.7, CAC.12, ACT.17 No protein-ligand interaction detected (PLIP) CAC.12: 5 residues within 4Å: Chain A: H.30 Ligands: ZN.6, ZN.7, CAC.11, ACT.17 No protein-ligand interaction detected (PLIP) CAC.13: 5 residues within 4Å: Chain A: H.302, H.306 Ligands: ZN.3, ZN.4, ACT.18 No protein-ligand interaction detected (PLIP) CAC.14: 5 residues within 4Å: Chain A: E.15, E.16, D.19 Ligands: ZN.5, ZN.9 1 PLIP interactions: 1 interactions with chain A Water bridges: A:E.16

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

ACT.15: 8 residues within 4Å: Chain A: H.68, R.126, N.143, R.144, I.246, Y.247, E.269 Chain B: L.65 7 PLIP interactions: 1 interactions with chain B, 6 interactions with chain A Hydrogen bonds: B:L.65, A:N.143 Hydrophobic interactions: A:I.246 Salt bridges: A:H.68, A:R.126, A:R.144, A:H.195 ACT.16: 3 residues within 4Å: Chain A: W.125, C.160, E.162 3 PLIP interactions: 3 interactions with chain A Water bridges: A:N.122, A:I.138, A:C.160 ACT.17: 6 residues within 4Å: Chain A: E.27, P.29, H.30 Ligands: ZN.7, CAC.11, CAC.12 2 PLIP interactions: 2 interactions with chain A Water bridges: A:H.30 Salt bridges: A:H.30 ACT.18: 5 residues within 4Å: Chain A: H.302, N.305, H.306 Ligands: ZN.3, CAC.13 3 PLIP interactions: 3 interactions with chain A Water bridges: A:H.302 Salt bridges: A:H.302, A:H.306 ACT.19: 6 residues within 4Å: Chain A: Y.11, H.12, T.13, W.72, H.119 Ligands: ZN.2 2 PLIP interactions: 2 interactions with chain A Hydrophobic interactions: A:T.13 Salt bridges: A:H.119 ACT.20: 4 residues within 4Å: Chain A: K.50, K.57, F.105, H.185 4 PLIP interactions: 4 interactions with chain A Water bridges: A:K.57, A:D.103 Salt bridges: A:K.50, A:K.57

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Sanglas, L. et al., Mammalian metallopeptidase inhibition at the defense barrier of Ascaris parasite. Proc.Natl.Acad.Sci.USA (2009)

Release Date

2008-12-30

Peptides

Carboxypeptidase A1: A
Carboxypeptidase A inhibitor: B

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Carboxypeptidase A1

Carboxypeptidase A inhibitor