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9XAA

Cryo-EM structure of the pre-40S ribosome (Enp1-Rrp12 WT) from Chaetomium thermophilum, state Tsr1-2

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(D)
Small ribosomal subunit protein uS2polymer28531159.01UniProt (G0RYF9)Thermochaetoides thermophila
2B
(E)
Small ribosomal subunit protein eS1polymer25529245.21UniProt (G0S7T8)Thermochaetoides thermophila
3C
(F)
Small ribosomal subunit protein uS5polymer26328556.11UniProt (G0SAV4)Thermochaetoides thermophila40S ribosomal protein S2
4D
(H)
40S ribosomal protein S4polymer26429800.81UniProt (G0S1A6)Thermochaetoides thermophila
5E
(J)
40S ribosomal protein S6polymer23927490.11UniProt (G0RY43)Thermochaetoides thermophila
6F
(K)
40S ribosomal protein S7polymer20323084.71UniProt (G0S8C4)Thermochaetoides thermophila
7G
(L)
40S ribosomal protein S8polymer20223102.41UniProt (G0RY45)Thermochaetoides thermophila
8H
(M)
40S ribosomal protein s9-like proteinpolymer19022029.81UniProt (G0S0Z4)Thermochaetoides thermophila
9I
(O)
40S ribosomal protein S11-like proteinpolymer16118698.21UniProt (G0SF00)Thermochaetoides thermophila
10J
(Q)
40S ribosomal protein S13-like proteinpolymer15116912.91UniProt (G0RZM9)Thermochaetoides thermophila
11K
(R)
40S ribosomal protein S14-like proteinpolymer15016071.51UniProt (G0SFL1)Thermochaetoides thermophila
12L
(U)
40S ribosomal protein S17-like proteinpolymer14316720.21UniProt (G0S871)Thermochaetoides thermophila
13M
(Y)
40S ribosomal protein S21-like proteinpolymer9810961.51UniProt (G0SI21)Thermochaetoides thermophila
14N
(Z)
40S ribosomal protein S22-like proteinpolymer13014905.51UniProt (G0SHI0)Thermochaetoides thermophila
15O
(a)
40S ribosomal protein s23-like proteinpolymer14515934.71UniProt (G0RY17)Thermochaetoides thermophila
16P
(b)
Small ribosomal subunit protein eS24polymer13615535.31UniProt (P0CU28)Thermochaetoides thermophila40S ribosomal protein S24
17Q
(e)
Ribosomal protein s27-like proteinpolymer828923.61UniProt (G0S1S4)Thermochaetoides thermophila
18R
(h)
40S ribosomal protein S30polymer626917.31Thermochaetoides thermophila
19S
(A)
18S rRNApolymer1796578795.61Thermochaetoides thermophila
20T
(2)
Tsr1polymer83093766.91Thermochaetoides thermophila
21U
(3)
Pre-rRNA-processing protein PNO1polymer25928715.01UniProt (G0S3T2)Thermochaetoides thermophila
22V
(e)
ZINC IONnon-polymer65.41Chemie (ZN)
PubChem (32051)
23W, X
(A)
MAGNESIUM IONnon-polymer24.32Chemie (MG)
PubChem (888)
24Y, Z
(O, A)
waterwater18.04Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains21
Total formula weight1057326.1
Non-Polymers*Number of molecules3
Total formula weight114.0
All*Total formula weight1057440.1
*Water molecules are not included.

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PDB entries from 2026-06-24

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