SMTL ID : 1r13.1

Carbohydrate recognition and neck domains of surfactant protein A (SP-A)

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.10 Å

Oligo State

homo-trimer

Ligands

3 x CA: CALCIUM ION(Non-covalent)

CA.1: 4 residues within 4Å: Chain A: E.115, R.117, N.134, D.135 5 PLIP interactions: 3 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:E.115, A:R.117, A:D.135, H2O.1, H2O.1 CA.4: 4 residues within 4Å: Chain B: E.115, R.117, N.134, D.135 5 PLIP interactions: 3 interactions with chain B, 2 Ligand-Water interactions Metal complexes: B:E.115, B:R.117, B:D.135, H2O.5, H2O.5 CA.7: 4 residues within 4Å: Chain C: E.115, R.117, N.134, D.135 5 PLIP interactions: 3 interactions with chain C, 2 Ligand-Water interactions Metal complexes: C:E.115, C:R.117, C:D.135, H2O.10, H2O.10

3 x SO4: SULFATE ION(Non-functional Binders)

SO4.2: 5 residues within 4Å: Chain A: Q.119, E.122, R.136, G.137, Q.140 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:E.122, A:G.137, A:Q.140 Salt bridges: A:R.136 SO4.5: 5 residues within 4Å: Chain B: Q.119, E.122, R.136, G.137, Q.140 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:E.122, B:G.137, B:Q.140 Salt bridges: B:R.136 SO4.8: 5 residues within 4Å: Chain C: Q.119, E.122, R.136, G.137, Q.140 4 PLIP interactions: 4 interactions with chain C Hydrogen bonds: C:E.122, C:G.137, C:Q.140 Salt bridges: C:R.136

3 x MES: 2-(N-MORPHOLINO)-ETHANESULFONIC ACID(Non-covalent)

MES.3: 5 residues within 4Å: Chain A: N.82, N.83, Y.84, T.129, R.142 6 PLIP interactions: 6 interactions with chain A Hydrogen bonds: A:N.82, A:Y.84, A:Y.84 Water bridges: A:R.136, A:R.142 pi-Cation interactions: A:Y.84 MES.6: 5 residues within 4Å: Chain B: N.82, N.83, Y.84, T.129, R.142 6 PLIP interactions: 6 interactions with chain B Hydrogen bonds: B:N.82, B:Y.84, B:Y.84 Water bridges: B:R.136, B:R.142 pi-Cation interactions: B:Y.84 MES.9: 5 residues within 4Å: Chain C: N.82, N.83, Y.84, T.129, R.142 6 PLIP interactions: 6 interactions with chain C Hydrogen bonds: C:N.82, C:Y.84, C:Y.84 Water bridges: C:R.136, C:R.142 pi-Cation interactions: C:Y.84

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Head, J.F. et al., Crystal structure of trimeric carbohydrate recognition and neck domains of surfactant protein A. J.Biol.Chem. (2003)

Release Date

2003-11-18

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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