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Crystal structure of purt-encoded glycinamide ribonucleotide transformylase in complex with mg-ATP and gar

Analyse Crystal structure of purt-encoded glycinamide ribonucleotide transformylase in… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
1KJ8
Type
protein
Length
770 residues
Chains
2
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Phosphoribosylglycinamide formyltransferase 2
EC
2.1.2.-
UniProt
P33221
Ligands
ATP, GAR, MG, NA, CL
Pockets
4 · best druggability 0.85

Structure

x-ray diffraction · 2 distinct chains · 34% helix, 31% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
APhosphoribosylglycinamide formyltransferase 2 (EC 2.1.2.-)protein38634% helix, 31% strandP33221
BPhosphoribosylglycinamide formyltransferase 2 (EC 2.1.2.-)protein38433% helix, 31% strandP33221

Ligands and binding sites

  • ATP · Adenosine-5'-triphosphate · ligand · 2 copies · chains A, B
  • GAR · Glycinamide ribonucleotide · ligand · 2 copies · chains A, B
  • MG · Magnesium ion · metal · 4 copies · chains A, B
  • NA · Sodium ion · metal · 2 copies · chains A, B
  • CL · Chloride ion · ion · 4 copies · chains A, B
  • EDO · 1,2-ethanediol · additive · 3 copies · chains A, B
  • MPO · 3[N-morpholino]propane sulfonic acid · additive · chains A, B

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

Pockets

4 pockets found on a 1 Å grid, 3 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
12610.850.9643CL, EDO
27420.770.8263MG, CL, ATP, GAR
38530.750.7962MG, ATP, GAR
4570.270.7418MPO

Interfaces

1 interface between chains.

  • A–B · 2443 Ų buried · 49 hydrogen bonds · protein-protein

Compared structures

  • 1KJ8 · Crystal Structure of PurT-Encoded Glycinamide Ribonucleotide Transformylase in Complex… · the same entry in another collection · chain A against A, TM-score 1.00
  • P33221 · AlphaFold monomer V2.0 prediction for formate-dependent phosphoribosylglycinamide… · a predicted model of the same protein · chain B against A, TM-score 0.99

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