SMTL ID : 6xfj.1 (1 other biounit)

Crystal structure of the type III secretion pilotin InvH

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.20 Å

Oligo State

homo-dimer

Ligands

8 x CD: CADMIUM ION(Non-covalent)(Non-functional Binders)

CD.1: 7 residues within 4Å: Chain A: C.20 Chain B: C.20 Ligands: CD.2, CL.5, CL.6, CL.7, CD.10 2 PLIP interactions: 1 interactions with chain A, 1 interactions with chain B Metal complexes: A:C.20, B:C.20 CD.2: 4 residues within 4Å: Chain A: C.20 Ligands: CD.1, CL.7, CL.16 2 PLIP interactions: 1 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:C.20, H2O.1 CD.3: 4 residues within 4Å: Chain A: E.77, Q.80 Ligands: CL.8, CL.9 2 PLIP interactions: 2 interactions with chain A Metal complexes: A:E.77, A:E.77 CD.4: 3 residues within 4Å: Chain A: Y.23, Q.25, E.28 4 PLIP interactions: 3 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:Y.23, A:E.28, A:E.28, H2O.3 CD.10: 6 residues within 4Å: Chain B: C.20 Ligands: CD.1, CL.7, CL.14, CL.15, CL.16 2 PLIP interactions: 2 interactions with chain B Metal complexes: B:C.20, B:C.20 CD.11: 2 residues within 4Å: Chain B: Q.25, E.28 5 PLIP interactions: 1 interactions with chain B, 4 Ligand-Water interactions Metal complexes: B:E.28, H2O.1, H2O.5, H2O.7, H2O.7 CD.12: 3 residues within 4Å: Chain B: E.45, E.48 Ligands: CL.17 4 PLIP interactions: 3 interactions with chain B, 1 Ligand-Water interactions Metal complexes: B:E.45, B:E.48, B:E.48, H2O.7 CD.13: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP)

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

CL.5: 6 residues within 4Å: Chain A: T.26, K.27 Chain B: S.16, C.20 Ligands: CD.1, CL.6 Ligand excluded by PLIP CL.6: 5 residues within 4Å: Chain A: C.20, T.26 Chain B: T.26 Ligands: CD.1, CL.5 Ligand excluded by PLIP CL.7: 9 residues within 4Å: Chain A: C.20 Chain B: C.20, K.27 Ligands: CD.1, CD.2, CD.10, CL.14, CL.15, CL.16 Ligand excluded by PLIP CL.8: 2 residues within 4Å: Chain A: E.77 Ligands: CD.3 Ligand excluded by PLIP CL.9: 4 residues within 4Å: Chain A: H.76, E.77, Q.80 Ligands: CD.3 Ligand excluded by PLIP CL.14: 5 residues within 4Å: Chain B: C.20, K.27 Ligands: CL.7, CD.10, CL.16 Ligand excluded by PLIP CL.15: 7 residues within 4Å: Chain B: C.20, K.24, Q.25, T.26, K.27 Ligands: CL.7, CD.10 Ligand excluded by PLIP CL.16: 6 residues within 4Å: Chain A: C.20 Chain B: C.20 Ligands: CD.2, CL.7, CD.10, CL.14 Ligand excluded by PLIP CL.17: 3 residues within 4Å: Chain B: E.45, E.48 Ligands: CD.12 Ligand excluded by PLIP

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

NA.18: 2 residues within 4Å: Chain B: Q.39, D.46 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:Q.39, B:D.46 Water bridges: B:S.43

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Majewski, D.D. et al., Characterization of the Pilotin-Secretin Complex from the Salmonella enterica Type III Secretion System Using Hybrid Structural Methods. Structure (2021)

Release Date

2020-09-16

Peptides

Type 3 secretion system pilotin: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Type 3 secretion system pilotin

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