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Pteridine reductase from leishmania tarentolae complex with NADPH and mtx

Analyse Pteridine reductase from leishmania tarentolae complex with NADPH and mtx in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
1P33
Type
protein
Length
1,072 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Pteridine reductase 1
EC
1.1.1.253
UniProt
P42556
Ligands
NDP, MTX
Pockets
15 · best druggability 0.82

Structure

x-ray diffraction · 4 distinct chains · 45% helix, 14% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
APteridine reductase 1 (EC 1.1.1.253)protein26745% helix, 15% strandP42556
BPteridine reductase 1 (EC 1.1.1.253)protein26945% helix, 14% strandP42556
CPteridine reductase 1 (EC 1.1.1.253)protein26845% helix, 15% strandP42556
DPteridine reductase 1 (EC 1.1.1.253)protein26845% helix, 13% strandP42556

Ligands and binding sites

  • NDP · Nadph dihydro-nicotinamide-adenine-dinucleotide phosphate · ligand · 4 copies · chains A, B, C, D
  • MTX · Methotrexate · ligand · 4 copies · chains A, B, C, D

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
110290.820.8471empty
26320.770.8344NDP, MTX
35750.770.8347NDP, MTX
46000.750.8245NDP, MTX
55930.740.8147NDP, MTX

Interfaces

6 interfaces between chains.

  • A–C · 2083 Ų buried · 25 hydrogen bonds · protein-protein
  • B–D · 2003 Ų buried · 23 hydrogen bonds · protein-protein
  • A–D · 1592 Ų buried · 8 hydrogen bonds · protein-protein
  • B–C · 1578 Ų buried · 9 hydrogen bonds · protein-protein
  • A–B · 641 Ų buried · 15 hydrogen bonds · protein-protein

Compared structures

  • 1P33 · Pteridine reductase from Leishmania tarentolae complex with NADPH and MTX · the same entry in another collection · chain D against D, TM-score 1.00
  • P42556 · AlphaFold monomer V2.0 prediction for pteridine reductase 1 (P42556) · a predicted model of the same protein · chain A against A, TM-score 0.99

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