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9TMN

Human sperm 20S proteasome complex isolated from native source

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, N
(A, O)
Proteasome subunit alpha type-6polymer24627432.52UniProt (P60900)Homo sapiens (human)27 kDa prosomal protein,p27K,Macropain iota chain,Multicatalytic endopeptidase complex iota chain,Proteasome iota chain
2B, O
(B, P)
Proteasome subunit alpha type-2polymer23425927.52UniProt (P25787)Homo sapiens (human)Macropain subunit C3,Multicatalytic endopeptidase complex subunit C3,Proteasome component C3
3C, P
(C, Q)
Proteasome subunit alpha type-4polymer26129525.82UniProt (P25789)Homo sapiens (human)Macropain subunit C9,Multicatalytic endopeptidase complex subunit C9,Proteasome component C9,Proteasome subunit L
4D, V
(D, R)
Isoform 3 of Proteasome subunit alpha-type 8polymer25027887.02UniProt (Q8TAA3)Homo sapiens (human)Proteasome alpha 4 subunit,Alpha4s,Proteasome subunit alpha-type 7-like
5E, Q
(E, S)
Proteasome subunit alpha type-5polymer24126436.02UniProt (P28066)Homo sapiens (human)Macropain zeta chain,Multicatalytic endopeptidase complex zeta chain,Proteasome zeta chain
6F, Z
(F, T)
Proteasome subunit alpha type-1polymer26329595.62UniProt (P25786)Homo sapiens (human)30 kDa prosomal protein,PROS-30,Macropain subunit C2,Multicatalytic endopeptidase complex subunit C2,Proteasome component C2,Proteasome nu chain
7G, R
(G, U)
Proteasome subunit alpha type-3polymer25528469.32UniProt (P25788)Homo sapiens (human)Macropain subunit C8,Multicatalytic endopeptidase complex subunit C8,Proteasome component C8
8H, S
(H, V)
Proteasome subunit beta type-6polymer20521921.82UniProt (P28072)Homo sapiens (human)Macropain delta chain,Multicatalytic endopeptidase complex delta chain,Proteasome delta chain,Proteasome subunit Y
9I, T
(I, W)
Proteasome subunit beta type-7polymer23425322.02UniProt (Q99436)Homo sapiens (human)Macropain chain Z,Multicatalytic endopeptidase complex chain Z,Proteasome subunit Z
10J, U
(J, X)
Proteasome subunit beta type-3polymer20522972.92UniProt (P49720)Homo sapiens (human)Proteasome chain 13,Proteasome component C10-II,Proteasome theta chain
11AA, K
(K, Y)
Proteasome subunit beta type-2polymer20122864.32UniProt (P49721)Homo sapiens (human)Macropain subunit C7-I,Multicatalytic endopeptidase complex subunit C7-I,Proteasome component C7-I
12L, Y
(M, a)
Proteasome subunit beta type-1polymer21323579.02UniProt (P20618)Homo sapiens (human)Macropain subunit C5,Multicatalytic endopeptidase complex subunit C5,Proteasome component C5,Proteasome gamma chain
13M, W
(N, b)
Proteasome subunit beta type-4polymer21924414.72UniProt (P28070)Homo sapiens (human)26 kDa prosomal protein,PROS-26,Macropain beta chain,Multicatalytic endopeptidase complex beta chain,Proteasome beta chain,Proteasome chain 3,HsN3
14DA, X
(L, Z)
Proteasome subunit beta type-5polymer20422484.42UniProt (P28074)Homo sapiens (human)Macropain epsilon chain,Multicatalytic endopeptidase complex epsilon chain,Proteasome chain 6,Proteasome epsilon chain,Proteasome subunit MB1,Proteasome subunit X
15BA, CA
(d, e)
tripeptidepolymer3373.52Homo sapiens
16EA, FA, GA
(I, J, W)
MAGNESIUM IONnon-polymer24.33Chemie (MG)
PubChem (888)
17AB, BB, CB, DB, EB...
(W, X, R, b, L...)
waterwater18.02921Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains30
Total formula weight718412.4
Non-Polymers*Number of molecules3
Total formula weight72.9
All*Total formula weight718485.4
*Water molecules are not included.

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PDB entries from 2026-09-09

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