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Crystal structure of 20S proteasome in complex with hydroxylated salinosporamide

Analyse Crystal structure of 20S proteasome in complex with hydroxylated salinosporamide in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
3HYE
Type
protein
Length
6,368 residues
Chains
28
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Proteasome component Y7; Proteasome component Y13; Proteasome component PRE6; Proteasome…
EC
3.4.25.1
UniProt
P23639, P23638, P40303, P32379, P40302, P21242, P21243, P25043, P25451, P22141, P30656, P23724, P30657, P38624
Ligands
HYE
Pockets
20 · best druggability 0.83

Structure

x-ray diffraction · 14 distinct chains · 35% helix, 29% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, OProteasome component Y7 (EC 3.4.25.1)protein25036% helix, 26% strandP23639
B, PProteasome component Y13 (EC 3.4.25.1)protein24437% helix, 25% strandP23638
C, QProteasome component PRE6 (EC 3.4.25.1)protein24138% helix, 23% strandP40303
D, RProteasome component PUP2 (EC 3.4.25.1)protein24237% helix, 27% strandP32379
E, SProteasome component PRE5 (EC 3.4.25.1)protein23337% helix, 28% strandP40302
F, TProteasome component C1 (EC 3.4.25.1)protein24439% helix, 25% strandP21242
G, UProteasome component C7-alpha (EC 3.4.25.1)protein24339% helix, 23% strandP21243
H, VProteasome component PUP1 (EC 3.4.25.1)protein22229% helix, 35% strandP25043
I, WProteasome component PUP3 (EC 3.4.25.1)protein20432% helix, 33% strandP25451
J, XProteasome component C11 (EC 3.4.25.1)protein19833% helix, 33% strandP22141
K, YProteasome component PRE2 (EC 3.4.25.1)protein21236% helix, 34% strandP30656
L, ZProteasome component C5 (EC 3.4.25.1)protein22228% helix, 31% strandP23724
M, 1Proteasome component PRE4 (EC 3.4.25.1)protein23331% helix, 31% strandP30657
N, 2Proteasome component PRE3 (EC 3.4.25.1)protein19636% helix, 35% strandP38624

Ligands and binding sites

  • HYE · (2R,3S,4R)-2-[(S)-(1S)-cyclohex-2-en-1-yl(hydroxy)methyl]-3-hydroxy-4-(2-hydroxyethyl)-3-methyl-5-oxopyrrolidine-2-carbaldehyde · ligand · 6 copies · chains H, Z, K, N, L, V, Y, 2

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
110650.830.84150HYE
29640.820.84111empty
39500.810.8396empty
411490.810.82113empty
511320.800.82111empty

Interfaces

92 interfaces between chains.

  • H–I · 1695 Ų buried · 29 hydrogen bonds · protein-protein
  • V–W · 1690 Ų buried · 28 hydrogen bonds · protein-protein
  • B–C · 1647 Ų buried · 27 hydrogen bonds · protein-protein
  • P–Q · 1598 Ų buried · 23 hydrogen bonds · protein-protein
  • H–Z · 1470 Ų buried · 22 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 6 covalent (covalent ligand).

Compared structures

  • 3HYE · Crystal structure of 20S proteasome in complex with hydroxylated salinosporamide · the same entry in another collection · chain B against B, TM-score 1.00

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