SMTL ID : 3g7v.1 (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: 15 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 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:W.63, A:R.67, A:R.67, A:Y.156 GLC-GLC.2: 16 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, R.345 6 PLIP interactions: 6 interactions with chain B Hydrogen bonds: B:W.63, B:R.67, B:R.67, B:Y.156, B:R.345 Water bridges: B:A.64

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

SO4.3: 6 residues within 4Å: Chain A: S.390, S.391, N.392 Chain B: E.173, N.174, F.386 6 PLIP interactions: 2 interactions with chain B, 4 interactions with chain A Hydrogen bonds: B:N.174, A:S.390, A:S.391, A:N.392, A:N.392 Water bridges: B:Y.172 SO4.4: 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 SO4.6: 3 residues within 4Å: Chain B: G.14, H.40, D.42 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:G.14, B:D.42 Water bridges: B:G.14 Salt bridges: B:H.40 SO4.7: 6 residues within 4Å: Chain A: E.173, N.174, F.386 Chain B: S.390, S.391, N.392 4 PLIP interactions: 3 interactions with chain B, 1 interactions with chain A Hydrogen bonds: B:S.391, B:N.392, A:N.174 Water bridges: B:S.391 SO4.8: 3 residues within 4Å: Chain B: P.41, D.42, K.47 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:D.42, B:D.42 Salt bridges: B:K.47 SO4.9: 2 residues within 4Å: Chain B: N.186, A.187 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:A.187 SO4.10: 2 residues within 4Å: Chain B: N.235, K.298 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:N.235 Water bridges: B:K.298, B:K.298 Salt bridges: B:K.298

3 x GOL: GLYCEROL(Non-functional Binders)

GOL.5: 7 residues within 4Å: Chain A: F.93, A.325, Q.326, G.328, I.330, V.388, F.394 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:Q.326, A:V.388 Water bridges: A:I.330 GOL.11: 6 residues within 4Å: Chain B: V.260, A.325, Q.326, G.328, S.391, F.394 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:A.325, B:I.330 GOL.12: 4 residues within 4Å: Chain B: K.27, N.283, Y.284, E.289 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:K.27, B:K.27, B:E.289 Water bridges: B:T.287

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
A

B
B

Maltose-binding periplasmic protein, Islet amyloid polypeptide fusion protein

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