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E.COLI qued, semet protein, 2A resolution

Analyse E.COLI qued, semet protein, 2A resolution in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
4NTN
Type
protein
Length
710 residues
Chains
6
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
6-carboxy-5,6,7,8-tetrahydropterin synthase
EC
4.1.2.50
UniProt
P65870
Ligands
ZN
Pockets
5 · best druggability 0.77

Structure

x-ray diffraction · 5 distinct chains · 28% helix, 33% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A6-carboxy-5,6,7,8-tetrahydropterin synthase (EC 4.1.2.50)protein11828% helix, 34% strandP65870
B, D6-carboxy-5,6,7,8-tetrahydropterin synthase (EC 4.1.2.50)protein11928% helix, 34% strandP65870
C6-carboxy-5,6,7,8-tetrahydropterin synthase (EC 4.1.2.50)protein11728% helix, 34% strandP65870
E6-carboxy-5,6,7,8-tetrahydropterin synthase (EC 4.1.2.50)protein11928% helix, 34% strandP65870
F6-carboxy-5,6,7,8-tetrahydropterin synthase (EC 4.1.2.50)protein11828% helix, 31% strandP65870

Ligands and binding sites

  • ZN · Zinc ion · metal · 6 copies · chains A, B, C, D, E, F
  • FMT · Formic acid · additive · chains A

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
110620.770.79112empty
26460.740.8176ZN
34840.720.8162ZN
43940.650.7933empty
51200.440.7717empty

Interfaces

9 interfaces between chains.

  • A–B · 780 Ų buried · 15 hydrogen bonds · protein-protein
  • E–F · 758 Ų buried · 22 hydrogen bonds · protein-protein
  • B–E · 756 Ų buried · 14 hydrogen bonds · protein-protein
  • A–E · 751 Ų buried · 13 hydrogen bonds · protein-protein
  • C–D · 743 Ų buried · 14 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 13 modified (engineered).

Compared structures

  • 4NTN · E.coli QueD, SeMet protein, 2A resolution · the same entry in another collection · chain F against F, TM-score 1.00
  • P65870 · AlphaFold monomer V2.0 prediction for 6-carboxy-5,6,7,8-tetrahydropterin synthase (P65870) · a predicted model of the same protein · chain C against A, TM-score 1.00

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