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PP1 H66K in complex with microcystin lr

Analyse PP1 H66K in complex with microcystin lr in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
6OBQ
Type
protein
Length
594 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
SERINE/THREONINE-protein phosphatase PP1-alpha catalytic subunit; Microcystin lr
EC
3.1.3.16
UniProt
P62136
Ligands
1ZN, FGA, DAM, MN
Pockets
6 · best druggability 0.60

Structure

x-ray diffraction · 2 distinct chains · 34% helix, 19% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, BSERINE/THREONINE-protein phosphatase PP1-alpha catalytic subunit (EC 3.1.3.16)protein29334% helix, 19% strandP62136
C, DMicrocystin lrprotein40% helix, 0% strand—

Ligands and binding sites

  • 1ZN · (2S,3S,4E,6E,8S,9S)-3-amino-9-methoxy-2,6,8-trimethyl-10-phenyldeca-4,6-dienoic acid · ligand · 2 copies · chains A, C, B, D
  • FGA · Gamma-D-glutamic acid · ligand · 2 copies · chains A, C, B, D
  • DAM · N-methyl-alpha-beta-dehydroalanine · ligand · 2 copies · chains A, C, B, D
  • MN · Manganese (II) ion · metal · 2 copies · chains A, B

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

6 pockets found on a 1 Å grid, 2 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
12500.600.79391ZN, FGA, DAM
22090.560.7930FGA, DAM
31210.500.8016empty
41500.470.7720empty
51420.470.7716empty

Interfaces

3 interfaces between chains.

  • A–B · 707 Ų buried · 12 hydrogen bonds · protein-protein
  • B–D · 292 Ų buried · 4 hydrogen bonds · protein-protein
  • A–C · 265 Ų buried · 2 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 6 covalent, 2 d-amino, 2 modified (covalent ligand, D-amino acid, nonstandard).

Compared structures

  • 6OBQ · PP1 H66K in complex with Microcystin LR · the same entry in another collection · chain B against B, TM-score 1.00
  • P62136 · AlphaFold monomer V2.0 prediction for SERINE/THREONINE-protein phosphatase PP1-alpha… · a predicted model of the same protein · chain B against A, TM-score 0.99

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