SMTL ID : 3par.1

Surfactant Protein-A neck and carbohydrate recognition domain (NCRD) in the absence of ligand

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.30 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.2, H2O.3 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.4, H2O.4

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

SO4.2: 3 residues within 4Å: Chain A: R.136, G.137, Q.140 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:G.137, A:Q.140 Salt bridges: A:R.136 SO4.3: 3 residues within 4Å: Chain A: R.136, Q.140, R.142 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:Q.140 Water bridges: A:Y.141 Salt bridges: A:R.136, A:R.142 SO4.5: 3 residues within 4Å: Chain B: R.136, G.137, Q.140 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:G.137, B:Q.140 Salt bridges: B:R.136 SO4.6: 3 residues within 4Å: Chain B: R.136, Q.140, R.142 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:Q.140 Water bridges: B:Y.141 Salt bridges: B:R.136, B:R.142 SO4.8: 3 residues within 4Å: Chain C: R.136, G.137, Q.140 3 PLIP interactions: 3 interactions with chain C Hydrogen bonds: C:G.137, C:Q.140 Salt bridges: C:R.136 SO4.9: 3 residues within 4Å: Chain C: R.136, Q.140, R.142 4 PLIP interactions: 4 interactions with chain C Hydrogen bonds: C:Q.140 Water bridges: C:Y.141 Salt bridges: C:R.136, C:R.142

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Shang, F. et al., Crystallographic complexes of surfactant protein A and carbohydrates reveal ligand-induced conformational change. J.Biol.Chem. (2011)

Release Date

2010-11-03

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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