SMTL ID : 5oll.1

Crystal structure of gurmarin, a sweet taste suppressing polypeptide

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.45 Å

Oligo State

homo-trimer

Ligands

9 x NI: NICKEL (II) ION(Non-covalent)

NI.1: 2 residues within 4Å: Chain A: E.22 Chain C: E.19 4 PLIP interactions: 2 interactions with chain A, 2 interactions with chain C Metal complexes: A:E.22, A:E.22, C:E.19, C:E.19 NI.2: 5 residues within 4Å: Chain A: E.1 Chain B: E.1 Chain C: E.1 Ligands: NI.5, NI.8 3 PLIP interactions: 1 interactions with chain A, 1 interactions with chain B, 1 interactions with chain C Metal complexes: A:E.1, B:E.1, C:E.1 NI.3: 5 residues within 4Å: Chain A: D.16 Chain B: D.16 Chain C: D.16 Ligands: NI.6, NI.9 No protein-ligand interaction detected (PLIP) NI.4: 2 residues within 4Å: Chain A: E.19 Chain B: E.22 4 PLIP interactions: 2 interactions with chain A, 2 interactions with chain B Metal complexes: A:E.19, A:E.19, B:E.22, B:E.22 NI.5: 5 residues within 4Å: Chain A: E.1 Chain B: E.1 Chain C: E.1 Ligands: NI.2, NI.8 3 PLIP interactions: 1 interactions with chain A, 1 interactions with chain B, 1 interactions with chain C Metal complexes: A:E.1, B:E.1, C:E.1 NI.6: 5 residues within 4Å: Chain A: D.16 Chain B: D.16 Chain C: D.16 Ligands: NI.3, NI.9 No protein-ligand interaction detected (PLIP) NI.7: 2 residues within 4Å: Chain B: E.19 Chain C: E.22 4 PLIP interactions: 2 interactions with chain B, 2 interactions with chain C Metal complexes: B:E.19, B:E.19, C:E.22, C:E.22 NI.8: 5 residues within 4Å: Chain A: E.1 Chain B: E.1 Chain C: E.1 Ligands: NI.2, NI.5 3 PLIP interactions: 1 interactions with chain A, 1 interactions with chain B, 1 interactions with chain C Metal complexes: A:E.1, B:E.1, C:E.1 NI.9: 5 residues within 4Å: Chain A: D.16 Chain B: D.16 Chain C: D.16 Ligands: NI.3, NI.6 No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Sigoillot, M. et al., The Crystal Structure of Gurmarin, a Sweet Taste-Suppressing Protein: Identification of the Amino Acid Residues Essential for Inhibition. Chem. Senses (2018)

Release Date

2018-08-08

Peptides

Gurmarin: ABC

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

C
A

Gurmarin