SMTL ID : 3poj.6 (5 other biounits)

Crystal structure of MASP-1 CUB2 domain bound to Ethylamine

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.45 Å

Oligo State

homo-trimer

Ligands

3 x CA: CALCIUM ION(Non-covalent)

CA.1: 4 residues within 4Å: Chain A: E.54, D.64, D.101, S.103 5 PLIP interactions: 3 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:E.54, A:D.64, A:S.103, H2O.1, H2O.1 CA.3: 4 residues within 4Å: Chain B: E.54, D.64, D.101, S.103 5 PLIP interactions: 3 interactions with chain B, 2 Ligand-Water interactions Metal complexes: B:E.54, B:D.64, B:S.103, H2O.6, H2O.6 CA.5: 4 residues within 4Å: Chain C: E.54, D.64, D.101, S.103 5 PLIP interactions: 3 interactions with chain C, 2 Ligand-Water interactions Metal complexes: C:E.54, C:D.64, C:S.103, H2O.11, H2O.11

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

SO4.2: 5 residues within 4Å: Chain A: R.107 Chain B: R.107 Chain C: R.107 Ligands: SO4.4, SO4.6 3 PLIP interactions: 1 interactions with chain C, 1 interactions with chain A, 1 interactions with chain B Salt bridges: C:R.107, A:R.107, B:R.107 SO4.4: 5 residues within 4Å: Chain A: R.107 Chain B: R.107 Chain C: R.107 Ligands: SO4.2, SO4.6 3 PLIP interactions: 1 interactions with chain C, 1 interactions with chain A, 1 interactions with chain B Salt bridges: C:R.107, A:R.107, B:R.107 SO4.6: 5 residues within 4Å: Chain A: R.107 Chain B: R.107 Chain C: R.107 Ligands: SO4.2, SO4.4 3 PLIP interactions: 1 interactions with chain C, 1 interactions with chain A, 1 interactions with chain B Salt bridges: C:R.107, A:R.107, B:R.107

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Gingras, A.R. et al., Structural Basis of Mannan-Binding Lectin Recognition by Its Associated Serine Protease MASP-1: Implications for Complement Activation. Structure (2011)

Release Date

2011-08-24

Peptides

Mannan-binding lectin serine protease 1: ABC

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
B

C
B

Mannan-binding lectin serine protease 1

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