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Crystal structure of pyruvate and MG2+ bound 2- methylisocitrate lyase (prpb) from salmonella typhimurium

Analyse Crystal structure of pyruvate and MG2+ bound 2- methylisocitrate lyase (prpb)… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
1O5Q
Type
protein
Length
1,082 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Probable methylisocitrate lyase
EC
4.1.3.30
UniProt
Q56062
Ligands
PYR, MG
Pockets
7 · best druggability 0.87

Structure

x-ray diffraction · 4 distinct chains · 53% helix, 14% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AProbable methylisocitrate lyase (EC 4.1.3.30)protein27153% helix, 14% strandQ56062
BProbable methylisocitrate lyase (EC 4.1.3.30)protein26853% helix, 14% strandQ56062
CProbable methylisocitrate lyase (EC 4.1.3.30)protein27553% helix, 14% strandQ56062
DProbable methylisocitrate lyase (EC 4.1.3.30)protein26851% helix, 14% strandQ56062

Ligands and binding sites

  • PYR · Pyruvic acid · ligand · 4 copies · chains A, B, C, D
  • MG · Magnesium ion · metal · 4 copies · chains A, B, C, D

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

Pockets

7 pockets found on a 1 Å grid, 7 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
18030.870.9095empty
28440.710.7693empty
38220.710.7780empty
42780.660.8343MG, PYR
52040.650.8433MG, PYR

Interfaces

6 interfaces between chains.

  • A–B · 3465 Ų buried · 53 hydrogen bonds · protein-protein
  • C–D · 3332 Ų buried · 54 hydrogen bonds · protein-protein
  • B–C · 589 Ų buried · 9 hydrogen bonds · protein-protein
  • A–D · 545 Ų buried · 8 hydrogen bonds · protein-protein
  • B–D · 454 Ų buried · 4 hydrogen bonds · protein-protein

Compared structures

  • 1O5Q · Crystal Structure of Pyruvate and Mg2+ bound 2-methylisocitrate lyase (PrpB) from… · the same entry in another collection · chain D against D, TM-score 1.00
  • Q56062 · AlphaFold monomer V2.0 prediction for 2-methylisocitrate lyase (Q56062) · a predicted model of the same protein · chain B against A, TM-score 0.99

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