SMTL ID : 4wre.1

Crystal Structure of Surfactant Protein-A DEDN Mutant (E171D/P175E/R197N/K203D) Complexed with Inositol

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.75 Å

Oligo State

homo-trimer

Ligands

6 x CA: CALCIUM ION(Non-covalent)

CA.1: 6 residues within 4Å: Chain A: E.115, N.117, E.122, N.134, D.135 Ligands: INS.3 4 PLIP interactions: 4 interactions with chain A Metal complexes: A:E.115, A:E.122, A:D.135, A:D.135 CA.2: 6 residues within 4Å: Chain A: D.91, F.98, G.118, Q.119, E.122, D.135 2 PLIP interactions: 2 interactions with chain A Metal complexes: A:E.122, A:D.135 CA.6: 6 residues within 4Å: Chain B: E.115, N.117, E.122, N.134, D.135 Ligands: INS.8 4 PLIP interactions: 4 interactions with chain B Metal complexes: B:E.115, B:E.122, B:D.135, B:D.135 CA.7: 6 residues within 4Å: Chain B: D.91, F.98, G.118, Q.119, E.122, D.135 2 PLIP interactions: 2 interactions with chain B Metal complexes: B:E.122, B:D.135 CA.11: 6 residues within 4Å: Chain C: E.115, N.117, E.122, N.134, D.135 Ligands: INS.13 4 PLIP interactions: 4 interactions with chain C Metal complexes: C:E.115, C:E.122, C:D.135, C:D.135 CA.12: 6 residues within 4Å: Chain C: D.91, F.98, G.118, Q.119, E.122, D.135 2 PLIP interactions: 2 interactions with chain C Metal complexes: C:E.122, C:D.135

3 x INS: 1,2,3,4,5,6-HEXAHYDROXY-CYCLOHEXANE(Non-covalent)

INS.3: 8 residues within 4Å: Chain A: E.115, N.117, E.122, N.134, D.135, R.136 Ligands: CA.1, HEZ.4 5 PLIP interactions: 5 interactions with chain A Hydrogen bonds: A:N.117, A:E.122, A:N.134, A:N.134, A:R.136 INS.8: 8 residues within 4Å: Chain B: E.115, N.117, E.122, N.134, D.135, R.136 Ligands: CA.6, HEZ.9 5 PLIP interactions: 5 interactions with chain B Hydrogen bonds: B:N.117, B:E.122, B:N.134, B:N.134, B:R.136 INS.13: 8 residues within 4Å: Chain C: E.115, N.117, E.122, N.134, D.135, R.136 Ligands: CA.11, HEZ.14 5 PLIP interactions: 5 interactions with chain C Hydrogen bonds: C:N.117, C:E.122, C:N.134, C:N.134, C:R.136

3 x HEZ: HEXANE-1,6-DIOL(Non-covalent)

HEZ.4: 3 residues within 4Å: Chain A: Y.112, Y.128 Ligands: INS.3 2 PLIP interactions: 2 interactions with chain A Hydrophobic interactions: A:Y.128 Hydrogen bonds: A:Y.112 HEZ.9: 3 residues within 4Å: Chain B: Y.112, Y.128 Ligands: INS.8 2 PLIP interactions: 2 interactions with chain B Hydrophobic interactions: B:Y.128 Hydrogen bonds: B:Y.112 HEZ.14: 3 residues within 4Å: Chain C: Y.112, Y.128 Ligands: INS.13 2 PLIP interactions: 2 interactions with chain C Hydrophobic interactions: C:Y.128 Hydrogen bonds: C:Y.112

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

CL.5: 4 residues within 4Å: Chain A: G.137, C.138, L.139, Q.140 Ligand excluded by PLIP CL.10: 4 residues within 4Å: Chain B: G.137, C.138, L.139, Q.140 Ligand excluded by PLIP CL.15: 4 residues within 4Å: Chain C: G.137, C.138, L.139, Q.140 Ligand excluded by PLIP

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Rynkiewicz, M.J. et al., Differential ligand binding specificities of the pulmonary collectins are determined by the conformational freedom of a surface loop. To be published

Release Date

2016-02-10

Peptides

Pulmonary surfactant-associated protein A: ABC

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

C
A

Pulmonary surfactant-associated protein A

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