SMTL ID : 3g7v.2 (1 other biounit)

Islet Amyloid Polypeptide (IAPP or Amylin) fused to Maltose Binding Protein

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.86 Å

Oligo State

homo-dimer

Ligands

2 x GLC- GLC: alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose(Non-covalent)

GLC-GLC.1: 16 residues within 4Å: Chain A: N.13, D.15, K.16, W.63, A.64, D.66, R.67, E.112, E.154, P.155, Y.156, F.157, W.231, M.331, W.341, R.345 6 PLIP interactions: 6 interactions with chain A Hydrogen bonds: A:W.63, A:R.67, A:R.67, A:Y.156, A:R.345 Water bridges: A:A.64 GLC-GLC.2: 15 residues within 4Å: Chain B: N.13, D.15, K.16, W.63, A.64, D.66, R.67, E.112, E.154, P.155, Y.156, F.157, W.231, M.331, W.341 5 PLIP interactions: 5 interactions with chain B Hydrogen bonds: B:D.66, B:R.67, B:R.67, B:E.154, B:Y.156

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

SO4.3: 3 residues within 4Å: Chain A: P.41, D.42, K.47 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:D.42 Salt bridges: A:K.47 SO4.4: 5 residues within 4Å: Chain A: S.390, S.391, N.392 Chain B: E.173, N.174 5 PLIP interactions: 2 interactions with chain B, 3 interactions with chain A Hydrogen bonds: B:N.174, A:S.391, A:N.392 Water bridges: B:Y.172, A:S.391 SO4.5: 2 residues within 4Å: Chain A: N.235, K.298 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:N.235 Salt bridges: A:K.298 SO4.6: 3 residues within 4Å: Chain A: G.14, H.40, D.42 2 PLIP interactions: 2 interactions with chain A Water bridges: A:G.14 Salt bridges: A:H.40 SO4.7: 2 residues within 4Å: Chain A: N.186, A.187 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:A.187 Water bridges: A:N.186, A:G.188 SO4.9: 6 residues within 4Å: Chain A: E.173, N.174, F.386 Chain B: S.390, S.391, N.392 4 PLIP interactions: 1 interactions with chain A, 3 interactions with chain B Hydrogen bonds: A:N.174, B:S.391, B:N.392, B:N.392 SO4.10: 3 residues within 4Å: Chain B: C.378, A.379, T.380 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:A.379, B:T.380 Water bridges: B:T.380 SO4.11: 3 residues within 4Å: Chain B: P.41, D.42, K.47 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:D.42 Salt bridges: B:K.47

2 x GOL: GLYCEROL(Non-functional Binders)

GOL.8: 7 residues within 4Å: Chain A: V.260, A.325, G.328, E.329, I.330, S.391, F.394 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:A.325, A:G.328, A:I.330, A:S.391 GOL.12: 7 residues within 4Å: Chain B: F.93, A.325, Q.326, G.328, V.388, H.389, F.394 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:A.325 Water bridges: B:I.330

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Wiltzius, J.J. et al., Atomic structures of IAPP (amylin) fusions suggest a mechanism for fibrillation and the role of insulin in the process. Protein Sci. (2009)

Release Date

2009-06-23

Peptides

Maltose-binding periplasmic protein, Islet amyloid polypeptide fusion protein: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
C

B
D

Maltose-binding periplasmic protein, Islet amyloid polypeptide fusion protein

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