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MolNFT v1 · #29382 · protein

Crystal structure of human sepiapterin reductase in complex with NADP+

1Z6Z: “Crystal structure of human sepiapterin reductase in complex with NADP+”. X-ray diffraction, 3 ligands (NAP, CL, SO4), 12 pockets (best druggability 0.77). MolNFT v1 #29382 on GenesisL1: 3D structure, binding sites and pockets in…

PDB
1Z6Z
Type
protein
Length
1,562 residues
Chains
6
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Sepiapterin reductase
EC
1.1.1.153
UniProt
P35270
Ligands
NAP, CL, SO4
Pockets
12 · best druggability 0.77

Structure

x-ray diffraction · 4 distinct chains · 46% helix, 17% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, CSepiapterin reductase (EC 1.1.1.153)protein26446% helix, 17% strandP35270
BSepiapterin reductase (EC 1.1.1.153)protein26146% helix, 17% strandP35270
D, FSepiapterin reductase (EC 1.1.1.153)protein25846% helix, 17% strandP35270
ESepiapterin reductase (EC 1.1.1.153)protein25746% helix, 18% strandP35270

Ligands and binding sites

  • NAP · Nadp nicotinamide-adenine-dinucleotide phosphate · ligand · 6 copies · chains A, B, C, D, E, F
  • CL · Chloride ion · ion · 11 copies · chains A, B, C, D, E, F
  • SO4 · Sulfate ion · ion · chains A

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

Pockets

12 pockets found on a 1 Å grid, 6 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
14490.770.8551CL, NAP
26130.770.8374CL, NAP
35180.760.8458CL, NAP
44840.760.8453CL, NAP
54690.760.8449CL, NAP

Interfaces

6 interfaces between chains.

  • A–B · 1970 Ų buried · 20 hydrogen bonds · protein-protein
  • C–D · 1967 Ų buried · 17 hydrogen bonds · protein-protein
  • E–F · 1922 Ų buried · 18 hydrogen bonds · protein-protein
  • D–F · 264 Ų buried · 4 hydrogen bonds · protein-protein
  • A–C · 83 Ų buried · 2 hydrogen bonds · protein-protein

Compared structures

  • 1Z6Z · Crystal Structure of Human Sepiapterin Reductase in complex with NADP+ · the same entry in another collection · chain F against F, TM-score 1.00
  • P35270 · AlphaFold monomer V2.0 prediction for sepiapterin reductase (P35270) · a predicted model of the same protein · chain E against A, TM-score 0.98

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