SMTL ID : 4x0n.1

Porcine pancreatic alpha-amylase in complex with helianthamide, a novel proteinaceous inhibitor

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.60 Å

Oligo State

hetero-1-1-mer

Ligands

1 x CL: CHLORIDE ION(Non-functional Binders)

CL.1: 4 residues within 4Å: Chain A: R.195, T.254, N.298, R.337 Ligand excluded by PLIP

1 x CA: CALCIUM ION(Non-covalent)

CA.2: 4 residues within 4Å: Chain A: N.100, R.158, D.167, H.201 5 PLIP interactions: 3 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:R.158, A:D.167, A:H.201, H2O.8, H2O.8

1 x GOL: GLYCEROL(Non-functional Binders)

GOL.3: 8 residues within 4Å: Chain A: W.58, D.300, R.303, H.305, G.306, D.356 Chain B: Y.7, G.11 5 PLIP interactions: 4 interactions with chain A, 1 interactions with chain B Hydrogen bonds: A:D.300, A:R.303, A:H.305, A:D.356, B:G.11

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Tysoe, C. et al., Structural Templating and Guided Refolding of the Potent Naturally Occurring Peptide Helianthamide Within the Active Site of Amylase, a Diabetes and Obesity Therapeutic Target. To Be Published

Release Date

2015-11-25

Peptides

Pancreatic alpha-amylase: A
Helianthamide: B

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Pancreatic alpha-amylase

Helianthamide

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