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9IGT

Assembly intermediate of human mitochondrial ribosome small subunit bound to METTL15, RBFA, and mtIF2 (State M2.1)

This is a non-PDB format compatible entry.
Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(B)
28S ribosomal protein S2, mitochondrialpolymer29633298.21UniProt (Q9Y399)Homo sapiens (human)MRP-S2,S2mt,Mitochondrial small ribosomal subunit protein uS2m
2B
(C)
28S ribosomal protein S24, mitochondrialpolymer16719046.21UniProt (Q96EL2)Homo sapiens (human)MRP-S24,S24mt,Mitochondrial small ribosomal subunit protein uS3m,bMRP-47,bMRP47
3C
(D)
28S ribosomal protein S5, mitochondrialpolymer43048094.61UniProt (P82675)Homo sapiens (human)MRP-S5,S5mt,Mitochondrial small ribosomal subunit protein uS5m
4D
(E)
28S ribosomal protein S6, mitochondrialpolymer12514250.61UniProt (P82932)Homo sapiens (human)MRP-S6,S6mt,Mitochondrial small ribosomal subunit protein bS6m
5E
(F)
28S ribosomal protein S7, mitochondrialpolymer24228186.21UniProt (Q9Y2R9)Homo sapiens (human)MRP-S7,S7mt,Mitochondrial small ribosomal subunit protein uS7m,bMRP-27a,bMRP27a
6F
(G)
28S ribosomal protein S9, mitochondrialpolymer39645909.91UniProt (P82933)Homo sapiens (human)MRP-S9,S9mt,Mitochondrial small ribosomal subunit protein uS9m
7G
(H)
28S ribosomal protein S10, mitochondrialpolymer20123033.51UniProt (P82664)Homo sapiens (human)MRP-S10,S10mt,Mitochondrial small ribosomal subunit protein uS10m
8H
(I)
28S ribosomal protein S11, mitochondrialpolymer19420663.81UniProt (P82912)Homo sapiens (human)MRP-S11,S11mt,Cervical cancer proto-oncogene 2 protein,HCC-2,Mitochondrial small ribosomal subunit protein uS11m
9I
(J)
28S ribosomal protein S12, mitochondrialpolymer13815200.91UniProt (O15235)Homo sapiens (human)MRP-S12,S12mt,MT-RPS12,Mitochondrial small ribosomal subunit protein uS12m
10J
(K)
28S ribosomal protein S14, mitochondrialpolymer12815168.81UniProt (O60783)Homo sapiens (human)MRP-S14,S14mt,Mitochondrial small ribosomal subunit protein uS14m
11K
(L)
28S ribosomal protein S15, mitochondrialpolymer25729903.31UniProt (P82914)Homo sapiens (human)MRP-S15,S15mt,Mitochondrial small ribosomal subunit protein uS15m
12L
(M)
28S ribosomal protein S16, mitochondrialpolymer13715371.91UniProt (Q9Y3D3)Homo sapiens (human)MRP-S16,S16mt,Mitochondrial small ribosomal subunit protein bS16m
13M
(N)
28S ribosomal protein S17, mitochondrialpolymer13014526.11UniProt (Q9Y2R5)Homo sapiens (human)MRP-S17,S17mt,Mitochondrial small ribosomal subunit protein uS17m
14N
(O)
28S ribosomal protein S18b, mitochondrialpolymer25829440.61UniProt (Q9Y676)Homo sapiens (human)MRP-S18-b,Mrps18-b,S18mt-b,28S ribosomal protein S18-2,mitochondrial,MRP-S18-2,Mitochondrial small ribosomal subunit protein bS18b,Mitochondrial small ribosomal subunit protein mS40
15O
(P)
28S ribosomal protein S18c, mitochondrialpolymer14215876.81UniProt (Q9Y3D5)Homo sapiens (human)MRP-S18-c,Mrps18-c,S18mt-c,28S ribosomal protein S18-1,mitochondrial,MRP-S18-1,Mitochondrial small ribosomal subunit protein bS18c,Mitochondrial small ribosomal subunit protein bS18m
16P
(Q)
MRPS21 isoform 1polymer8710659.51UniProt (A0A2J8VEN6)Homo sapiens (human)MRPS21 isoform 2,Mitochondrial ribosomal protein S21
17Q
(R)
28S ribosomal protein S22, mitochondrialpolymer36041337.31UniProt (P82650)Homo sapiens (human)MRP-S22,S22mt,Mitochondrial small ribosomal subunit protein mS22
18R
(S)
28S ribosomal protein S23, mitochondrialpolymer19021805.71UniProt (Q9Y3D9)Homo sapiens (human)MRP-S23,S23mt,Mitochondrial small ribosomal subunit protein mS23
19S
(T)
28S ribosomal protein S25, mitochondrialpolymer17320146.41UniProt (P82663)Homo sapiens (human)MRP-S25,S25mt,Mitochondrial small ribosomal subunit protein mS25
20T
(U)
28S ribosomal protein S26, mitochondrialpolymer20524259.81UniProt (Q9BYN8)Homo sapiens (human)MRP-S26,S26mt,28S ribosomal protein S13,mitochondrial,MRP-S13,S13mt,Mitochondrial small ribosomal subunit protein mS26
21U
(V)
28S ribosomal protein S27, mitochondrialpolymer41447669.31UniProt (Q92552)Homo sapiens (human)MRP-S27,S27mt,Mitochondrial ribosomal protein S27,Mitochondrial small ribosomal subunit protein mS27
22V
(W)
28S ribosomal protein S28, mitochondrialpolymer18720878.81UniProt (Q9Y2Q9)Homo sapiens (human)MRP-S28,S28mt,28S ribosomal protein S35,mitochondrial,MRP-S35,S35mt,Mitochondrial small ribosomal subunit protein bS1m
23W
(X)
28S ribosomal protein S29, mitochondrialpolymer39845634.41UniProt (P51398)Homo sapiens (human)MRP-S29,S29mt,Death-associated protein 3,DAP-3,Ionizing radiation resistance conferring protein,Mitochondrial small ribosomal subunit protein mS29
24X
(Y)
28S ribosomal protein S31, mitochondrialpolymer39545391.51UniProt (Q92665)Homo sapiens (human)MRP-S31,S31mt,Imogen 38,Mitochondrial small ribosomal subunit protein mS31
25Y
(Z)
28S ribosomal protein S33, mitochondrialpolymer10612657.81UniProt (Q9Y291)Homo sapiens (human)MRP-S33,S33mt,Mitochondrial small ribosomal subunit protein mS33
26Z
(0)
28S ribosomal protein S34, mitochondrialpolymer21825695.51UniProt (P82930)Homo sapiens (human)S34mt,Mitochondrial small ribosomal subunit protein mS34
27AA
(1)
28S ribosomal protein S35, mitochondrialpolymer32336898.31UniProt (P82673)Homo sapiens (human)MRP-S35,S35mt,28S ribosomal protein S28,mitochondrial,MRP-S28,S28mt,Mitochondrial small ribosomal subunit protein mS35
28BA
(3)
Aurora kinase A-interacting proteinpolymer19922395.31UniProt (Q9NWT8)Homo sapiens (human)AURKA-interacting protein,28S ribosomal protein S38,mitochondrial,MRP-S38,Mitochondrial small ribosomal subunit protein mS38
29CA
(4)
Pentatricopeptide repeat domain-containing protein 3, mitochondrialpolymer68978648.51UniProt (Q96EY7)Homo sapiens (human)28S ribosomal protein S39,mitochondrial,MRP-S39,Mitochondrial small ribosomal subunit protein mS39,Transformation-related gene 15 protein,TRG-15
30DA
(b)
12S rRNA N4-methylcytidine (m4C) methyltransferasepolymer40746184.01UniProt (A6NJ78)Homo sapiens (human)12S rRNA m4C methyltransferase,Methyltransferase 5 domain-containing protein 1,Methyltransferase-like protein 15
31EA
(A)
12S mitochondrial rRNApolymer954306228.31Homo sapiens
32FA
(7)
Translation initiation factor IF-2, mitochondrialpolymer69176873.01UniProt (P46199)Homo sapiens (human)IF-2(Mt),IF-2Mt,IF2(mt)
33GA
(t)
Large ribosomal subunit protein bL12m, short mature formpolymer717779.21UniProt (P52815)Homo sapiens (human)
34HA
(a)
Putative ribosome-binding factor A, mitochondrialpolymer30234020.31UniProt (Q8N0V3)Homo sapiens (human)
35AB, IA, QA, RA, SA...
(A, B)
MAGNESIUM IONnon-polymer24.312Chemie (MG)
36JA
(O)
ZINC IONnon-polymer65.41Chemie (ZN)
37KA, LA
(P, T)
FE2/S2 (INORGANIC) CLUSTERnon-polymer175.82Chemie (FES)
38MA
(X)
ADENOSINE-5'-TRIPHOSPHATEnon-polymer507.21Chemie (ATP)
39BB, NA
(7, X)
GUANOSINE-5'-DIPHOSPHATEnon-polymer443.22Chemie (GDP)
40OA
(A)
NICOTINAMIDE-ADENINE-DINUCLEOTIDEnon-polymer663.41Chemie (NAD)
41PA
(A)
SPERMINEnon-polymer202.31Chemie (SPM)
42CB, DB, EB, FB, GB...
(C, G, I, K, T...)
waterwater18.08Chemie (HOH)
Sequence modifications
I: 1 - 194 (UniProt: P82912)
PDBExternal DatabaseDetails
5f0 184Asn 184variant
Q: 2 - 87 (UniProt: A0A2J8VEN6)
PDBExternal DatabaseDetails
Ace 1-acetylation
7: 37 - 727 (UniProt: P46199)
PDBExternal DatabaseDetails
Met 37Phe 37conflict
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains34
Total formula weight1293134.4
Non-Polymers*Number of molecules20
Total formula weight2968.1
All*Total formula weight1296102.5
*Water molecules are not included.

250359

PDB entries from 2026-03-11

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