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3MG4

Structure of yeast 20S proteasome with Compound 1

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, O
(A, O)
Proteasome component Y7polymer25027191.82UniProt (P23639)
Pfam (PF10584)
Pfam (PF00227)
Saccharomyces cerevisiae (brewer's yeast lager beer yeast yeast)Macropain subunit Y7, Multicatalytic endopeptidase complex subunit Y7, Proteinase YSCE subunit 7
2B, P
(B, P)
Proteasome component Y13polymer24427050.42UniProt (P23638)
Pfam (PF10584)
Pfam (PF00227)
Saccharomyces cerevisiae (brewer's yeast lager beer yeast yeast)Macropain subunit Y13, Multicatalytic endopeptidase complex subunit Y13, Proteinase YSCE subunit 13
3C, Q
(C, Q)
Proteasome component PRE6polymer24126903.32UniProt (P40303)
Pfam (PF10584)
Pfam (PF00227)
Saccharomyces cerevisiae (brewer's yeast lager beer yeast yeast)Macropain subunit PRE6, Multicatalytic endopeptidase complex subunit PRE6, Proteinase YSCE subunit PRE6
4D, R
(D, R)
Proteasome component PUP2polymer24226544.82UniProt (P32379)
Pfam (PF00227)
Pfam (PF10584)
Saccharomyces cerevisiae (brewer's yeast lager beer yeast yeast)Macropain subunit PUP2, Multicatalytic endopeptidase complex subunit PUP2, Proteinase YSCE subunit PUP2
5E, S
(E, S)
Proteasome component PRE5polymer23325502.82UniProt (P40302)
Pfam (PF10584)
Pfam (PF00227)
Saccharomyces cerevisiae (brewer's yeast lager beer yeast yeast)Macropain subunit PRE5, Multicatalytic endopeptidase complex subunit PRE5, Proteinase YSCE subunit PRE5
6F, T
(F, T)
Proteasome component C1polymer24426892.52UniProt (P21242)
Pfam (PF10584)
Pfam (PF00227)
Saccharomyces cerevisiae (brewer's yeast lager beer yeast yeast)Macropain subunit C1, Multicatalytic endopeptidase complex subunit C1, Proteinase YSCE subunit 1
7G, U
(G, U)
Proteasome component C7-alphapolymer24327316.02UniProt (P21243)
Pfam (PF10584)
Pfam (PF00227)
Saccharomyces cerevisiae (brewer's yeast lager beer yeast yeast)Macropain subunit C7-alpha, Multicatalytic endopeptidase complex C7, Proteasome component Y8, Proteinase YSCE subunit 7, SCL1 suppressor protein
8H, V
(H, V)
Proteasome component PUP1polymer22223987.32UniProt (P25043)
Pfam (PF00227)
Pfam (PF12465)
Saccharomyces cerevisiae (brewer's yeast lager beer yeast yeast)Macropain subunit PUP1, Multicatalytic endopeptidase complex subunit PUP1, Proteinase YSCE subunit PUP1
9I, W
(I, W)
Proteasome component PUP3polymer20422496.62UniProt (P25451)
Pfam (PF00227)
Saccharomyces cerevisiae (brewer's yeast lager beer yeast yeast)Macropain subunit PUP3, Multicatalytic endopeptidase complex subunit PUP3
10J, X
(J, X)
Proteasome component C11polymer19822545.72UniProt (P22141)
Pfam (PF00227)
Saccharomyces cerevisiae (brewer's yeast lager beer yeast yeast)Macropain subunit C11, Multicatalytic endopeptidase complex subunit C11, Proteinase YSCE subunit 11
11K, Y
(K, Y)
Proteasome component PRE2polymer21223325.22UniProt (P30656)
Pfam (PF00227)
Saccharomyces cerevisiae (brewer's yeast lager beer yeast yeast)Macropain subunit PRE2, Multicatalytic endopeptidase complex subunit PRE2, Proteinase YSCE subunit PRE2
12L, Z
(L, Z)
Proteasome component C5polymer22224883.92UniProt (P23724)
Pfam (PF00227)
Saccharomyces cerevisiae (brewer's yeast lager beer yeast yeast)Multicatalytic endopeptidase complex subunit C5
13AA, M
(M, 1)
Proteasome component PRE4polymer23325945.52UniProt (P30657)
Pfam (PF00227)
Saccharomyces cerevisiae (brewer's yeast lager beer yeast yeast)Macropain subunit PRE4, Multicatalytic endopeptidase complex subunit PRE4, Proteinase YSCE subunit PRE4
14BA, N
(N, 2)
Proteasome component PRE3polymer19621517.22UniProt (P38624)
Pfam (PF00227)
Saccharomyces cerevisiae (brewer's yeast lager beer yeast yeast)Macropain subunit PRE3, Multicatalytic endopeptidase complex subunit PRE3, Proteinase YSCE subunit PRE3
15CA, DA, EA, FA, GA...
(D, F, G, H, I...)
MAGNESIUM IONnon-polymer24.310Chemie (MG)
16KA, OA
(K, Y)
(2S)-2-amino-N-[(1S)-1-({(1S)-1-[(4-methylbenzyl)carbamoyl]-3-phenylpropyl}carbamoyl)-3-phenylpropyl]-4-phenylbutanamidenon-polymer604.82Chemie (LXT)
17LA, PA
(K, Y)
2-(N-MORPHOLINO)-ETHANESULFONIC ACIDnon-polymer195.22Chemie (MES)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains28
Total formula weight704206.2
Non-Polymers*Number of molecules14
Total formula weight1843.1
All*Total formula weight706049.3
*Water molecules are not included.

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PDB entries from 2025-06-11

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