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Yeast 20S proteasome in complex with the peptidic epoxyketone inhibitor 27

Analyse Yeast 20S proteasome in complex with the peptidic epoxyketone inhibitor 27 in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
5JHR
Type
protein
Length
6,336 residues
Chains
28
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Proteasome subunit alpha type-2; Proteasome subunit alpha type-3; Proteasome subunit…
EC
3.4.25.1
UniProt
P23639, P23638, P40303, P32379, P40302, P21242, P21243, P25043, P25451, P22141, P30656, P23724, P30657, P38624
Ligands
6KF, MG, CL
Pockets
20 · best druggability 0.83

Structure

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

ChainMoleculeTypeResiduesSecondary structureUniProt
A, OProteasome subunit alpha type-2 (EC 3.4.25.1)protein25035% helix, 25% strandP23639
B, PProteasome subunit alpha type-3 (EC 3.4.25.1)protein24438% helix, 25% strandP23638
C, QProteasome subunit alpha type-4 (EC 3.4.25.1)protein24036% helix, 24% strandP40303
D, RProteasome subunit alpha type-5 (EC 3.4.25.1)protein23538% helix, 27% strandP32379
E, SProteasome subunit alpha type-6 (EC 3.4.25.1)protein23137% helix, 28% strandP40302
F, TProbable proteasome subunit alpha type-7 (EC 3.4.25.1)protein24339% helix, 26% strandP21242
G, UProteasome subunit alpha type-1 (EC 3.4.25.1)protein24142% helix, 23% strandP21243
H, VProteasome subunit beta type-2 (EC 3.4.25.1)protein22229% helix, 35% strandP25043
I, WProteasome subunit beta type-3 (EC 3.4.25.1)protein20432% helix, 34% strandP25451
J, XProteasome subunit beta type-4 (EC 3.4.25.1)protein19534% helix, 34% strandP22141
K, YProteasome subunit beta type-5 (EC 3.4.25.1)protein21235% helix, 33% strandP30656
L, ZProteasome subunit beta type-6 (EC 3.4.25.1)protein22228% helix, 31% strandP23724
M, aProteasome subunit beta type-7 (EC 3.4.25.1)protein23331% helix, 30% strandP30657
N, bProteasome subunit beta type-1 (EC 3.4.25.1)protein19638% helix, 34% strandP38624

Ligands and binding sites

  • 6KF · (2S)-2-azido-N-[(2S)-3-(biphenyl-4-yl)-1-{[(2S)-1-{[(2S,3S,4R)-3,5-dihydroxy-4-methylpentan-2-yl]amino}-1-oxo-3-phenylpropan-2-yl]amino}-1-oxopropan-2-yl]-3-phenylpropanamide (non-preferred name) · ligand · 2 copies · chains K, L, Y, Z
  • MG · Magnesium ion · metal · 8 copies · chains G, I, Y, J, K, W, L, V, N, a, H, Z
  • CL · Chloride ion · ion · 3 copies · chains G, H, U, V
  • MES · 2-(N-morpholino)-ethanesulfonic acid · additive · 2 copies · chains K, Y

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
111050.830.84160empty
29550.830.84125empty
310820.800.81134empty
410090.790.81100empty
510150.790.81105empty

Interfaces

92 interfaces between chains.

  • V–W · 1714 Ų buried · 26 hydrogen bonds · protein-protein
  • H–I · 1704 Ų buried · 30 hydrogen bonds · protein-protein
  • B–C · 1577 Ų buried · 24 hydrogen bonds · protein-protein
  • P–Q · 1542 Ų buried · 20 hydrogen bonds · protein-protein
  • O–U · 1462 Ų buried · 19 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 2 covalent (covalent ligand).

Compared structures

  • 5JHR · Yeast 20S proteasome in complex with the peptidic epoxyketone inhibitor 27 · the same entry in another collection · chain M against M, TM-score 1.00

Analyse

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