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Structure of tRNA-dependent amidotransferase gatcab from aquifex aeolicus

Analyse Structure of tRNA-dependent amidotransferase gatcab from aquifex aeolicus in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
3H0R
Type
protein
Length
7,832 residues
Chains
24
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Glutamyl-TRNA(GLN) amidotransferase subunit a; ASPARTYL/GLUTAMYL-TRNA(ASN/GLN)…
EC
6.3.5.-
UniProt
O66610, O66766, O67904
Ligands
ASN, ATP, ADP, ASP, MN, ZN
Pockets
20 · best druggability 0.80

Structure

x-ray diffraction · 3 distinct chains · 39% helix, 18% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, D, G, J, M, P, S, VGlutamyl-TRNA(GLN) amidotransferase subunit a (EC 6.3.5.-)protein47842% helix, 15% strandO66610
B, E, H, K, N, Q, T, WASPARTYL/GLUTAMYL-TRNA(ASN/GLN) amidotransferase subunit Bprotein41036% helix, 24% strandO66766
C, F, I, L, O, R, U, XGlutamyl-TRNA(GLN) amidotransferase subunit C (EC 6.3.5.-)protein9138% helix, 10% strandO67904

Ligands and binding sites

  • ASN · Asparagine · ligand · 8 copies · chains A, D, G, J, M, P, S, V
  • ATP · Adenosine-5'-triphosphate · ligand · 6 copies · chains E, H, K, N, Q, W
  • ADP · Adenosine-5'-diphosphate · ligand · 2 copies · chains B, T
  • ASP · Aspartic acid · ligand · 2 copies · chains H, N
  • MN · Manganese (II) ion · metal · 16 copies · chains B, E, H, K, N, Q, T, W
  • ZN · Zinc ion · metal · 8 copies · chains B, E, H, K, N, Q, T, W

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
19170.800.8279empty
27280.800.8374empty
36920.780.8359empty
410320.770.79126empty
57990.760.8066empty

Interfaces

46 interfaces between chains.

  • M–O · 2644 Ų buried · 26 hydrogen bonds · protein-protein
  • G–I · 2618 Ų buried · 29 hydrogen bonds · protein-protein
  • A–C · 2609 Ų buried · 28 hydrogen bonds · protein-protein
  • V–X · 2603 Ų buried · 26 hydrogen bonds · protein-protein
  • S–U · 2597 Ų buried · 26 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 8 covalent (covalent ligand).

Compared structures

  • 3H0R · Structure of trna-dependent amidotransferase gatcab from aquifex aeolicus · the same entry in another collection · chain R against R, TM-score 1.00

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