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Crystal structure of myorg (D520N) in complex with gal-A1,4-glc

Analyse Crystal structure of myorg (D520N) in complex with gal-A1,4-glc in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7QQH
Type
protein
Length
2,468 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Myogenesis-regulating glycosidase
EC
3.2.1.-
UniProt
Q6NSJ0
Ligands
NAG, BGC, GLA
Pockets
20 · best druggability 0.66

Structure

x-ray diffraction · 3 distinct chains · 26% helix, 29% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AMyogenesis-regulating glycosidase (EC 3.2.1.-)protein61527% helix, 29% strandQ6NSJ0
B, DMyogenesis-regulating glycosidase (EC 3.2.1.-)protein61826% helix, 29% strandQ6NSJ0
CMyogenesis-regulating glycosidase (EC 3.2.1.-)protein61726% helix, 29% strandQ6NSJ0

Ligands and binding sites

  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 26 copies · chains A, B, C, D
  • BGC · beta-D-glucopyranose · sugar · 4 copies · chains A, B, C, D
  • GLA · alpha-D-galactopyranose · sugar · 4 copies · chains A, B, C, D
  • EDO · 1,2-ethanediol · additive · 9 copies · chains A, B, C, D
  • MLI · Malonate ion · additive · 4 copies · chains A, B, C, D

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

Pockets

20 pockets found on a 1 Å grid, 4 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
15130.660.7760empty
2880.650.9019EDO
32910.610.7944empty
45050.600.7461empty
51810.480.7637empty

Interfaces

3 interfaces between chains.

  • B–C · 718 Ų buried · 2 hydrogen bonds · protein-protein
  • A–D · 681 Ų buried · 2 hydrogen bonds · protein-protein
  • A–C · 274 Ų buried · 2 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 18 glycan, 8 disulfide (N-glycosylation, disulfide).

Compared structures

  • 7QQH · Crystal structure of MYORG (D520N) in complex with Gal-a1,4-Glc · the same entry in another collection · chain A against A, TM-score 1.00
  • Q6NSJ0 · AlphaFold monomer V2.0 prediction for myogenesis-regulating glycosidase (Q6NSJ0) · a predicted model of the same protein · chain A against A, TM-score 0.99

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