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7O2L

Yeast 20S proteasome in complex with the covalently bound inhibitor b-lactone (2R,3S)-3-isopropyl-4-oxo-2-oxetane-carboxylate (IOC)

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, O
(A, O)
HLJ1_G0039880.mRNA.1.CDS.1polymer25027191.82UniProt (A0A6L1BIF8)
Pfam (PF10584)
Pfam (PF00227)
UniProt (by SIFTS) (P23639)
Saccharomyces cerevisiae (Baker's yeast)Proteasome subunit alpha type-2
2B, P
(B, P)
BJ4_G0021480.mRNA.1.CDS.1polymer25828748.22UniProt (A0A6A5PXC6)
Pfam (PF10584)
Pfam (PF00227)
UniProt (by SIFTS) (P23638)
Saccharomyces cerevisiae (Baker's yeast)Proteasome subunit alpha type-3
3C, Q
(C, Q)
HLJ1_G0048980.mRNA.1.CDS.1polymer25428478.12UniProt (A0A6A5Q273)
Pfam (PF10584)
Pfam (PF00227)
UniProt (by SIFTS) (P40303)
Saccharomyces cerevisiae (Baker's yeast)Proteasome subunit alpha type-4
4D, R
(D, R)
20S proteasomepolymer26028649.12UniProt (P32379)
Pfam (PF10584)
Pfam (PF00227)
Saccharomyces cerevisiae (Baker's yeast)
5E, S
(E, S)
BJ4_G0043800.mRNA.1.CDS.1polymer23425634.02UniProt (A0A6A5PTH4)
Pfam (PF00227)
Pfam (PF10584)
UniProt (by SIFTS) (P40302)
Saccharomyces cerevisiae (Baker's yeast)Proteasome subunit alpha type-6
6F, T
(F, T)
Probable proteasome subunit alpha type-7polymer28831575.12UniProt (A0A6A5Q4M4)
Pfam (PF10584)
Pfam (PF00227)
UniProt (by SIFTS) (P21242)
Saccharomyces cerevisiae (Baker's yeast)
7G, U
(G, U)
BJ4_G0020160.mRNA.1.CDS.1polymer25228033.82UniProt (A0A6A5PYC9)
Pfam (PF10584)
Pfam (PF00227)
UniProt (by SIFTS) (P21243)
Saccharomyces cerevisiae (Baker's yeast)HLJ1_G0019920.mRNA.1.CDS.1,Proteasome subunit alpha type-1
8H, V
(H, V)
Proteasome endopeptidase complexpolymer23225114.52UniProt (A0A6A5Q449)
Pfam (PF00227)
Pfam (PF12465)
UniProt (by SIFTS) (P25043)
Saccharomyces cerevisiae (Baker's yeast)
9I, W
(I, W)
Proteasome endopeptidase complexpolymer20522627.82UniProt (A0A6L0YA22)
Pfam (PF00227)
UniProt (by SIFTS) (P25451)
Saccharomyces cerevisiae (Baker's yeast)
10J, X
(J, X)
Proteasome subunit betapolymer19822545.72UniProt (A0A6A5Q0W2)
Pfam (PF00227)
UniProt (by SIFTS) (P22141)
Saccharomyces cerevisiae (Baker's yeast)
11K, Y
(K, Y)
Proteasome subunit beta type-5polymer21223325.22UniProt (A0A6V8RU78)
Pfam (PF00227)
UniProt (by SIFTS) (P30656)
Saccharomyces cerevisiae (Baker's yeast)
12L, Z
(L, Z)
Proteasome endopeptidase complexpolymer22224883.92UniProt (A0A6A5Q0P3)
Pfam (PF00227)
UniProt (by SIFTS) (P23724)
Saccharomyces cerevisiae (Baker's yeast)
13AA, M
(M, a)
Proteasome subunit beta type-7polymer24627200.92UniProt (P30657)
Pfam (PF00227)
Saccharomyces cerevisiae (Baker's yeast)Macropain subunit PRE4,Multicatalytic endopeptidase complex subunit PRE4,Proteasome component PRE4,Proteinase YSCE subunit PRE4
14BA, N
(N, b)
Proteasome endopeptidase complexpolymer19621517.22UniProt (A0A6L0ZSP2)
Pfam (PF00227)
UniProt (by SIFTS) (P38624)
Saccharomyces cerevisiae (Baker's yeast)
15CA, FA, HA, JA, MA...
(G, I, K, N, V...)
MAGNESIUM IONnon-polymer24.38Chemie (MG)
16DA, KA
(G, U)
CHLORIDE IONnon-polymer35.52Chemie (CL)
17EA, GA, IA, LA, OA...
(H, K, N, V, Y...)
(2 {R},3 {S})-3-methanoyl-4-methyl-2-hydroxy-pentanoic acidnon-polymer160.26Chemie (V08)
18AB, BB, CB, DB, EB...
(I, J, K, L, M...)
waterwater18.0126Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains28
Total formula weight731050.8
Non-Polymers*Number of molecules16
Total formula weight1226.4
All*Total formula weight732277.1
*Water molecules are not included.

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PDB entries from 2025-06-11

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