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Protein Structures and Oligomeric States

Enter a protein name, UniProt accession or PDB ID. Name searches ask you to confirm the protein identity before related structures are queried.

Current Protein Identity：Q8N0V3 New Search
20PDB entries
20Biological assembly
20chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics

Difference tags compare only the current result set; every original PDB and assembly record remains separate.

Related-Structure Differences

Each row represents one biological assembly in one PDB entry; multiple monomers of the same protein are listed separately.

PDB Entry Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Experimental Method Experimental Conditions Structure Quality
2E7G Solution structure of putative ribosome-binding factor A (RbfA) from human mutochondrial precursor Deposited 2007-01-09 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 86–201（116 aa） Fragment：KH FOLD
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 7；298 K；Ionic strength (raw mmCIF value) 120mM；Pressure ambient
NMR sample composition 0.79mM 13C-15N PROTEIN; 20mM d-Tris-HCl(ph7.0); 100mM NaCl; 1mM d-DTT; 0.02% NaN3; 90% H2O, 10% D2O | 90% H2O/10% D2O
Resolution not provided
7PNX Assembly intermediate of human mitochondrial ribosome small subunit without mS37 in complex with RBFA and METTL15 conformation a Deposited 2021-09-08 Assembly 1 Protein–RNA Heteromer；Protein × 31 PDB declaration: 32-meric（32） Consistent with all polymers
Chain a 1–343（343 aa）
Not recorded NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 1 MG MAGNESIUM ION × 64 K POTASSIUM ION × 16 ZN ZINC ION × 1 FES FE2/S2 (INORGANIC) CLUSTER × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 SAH S-ADENOSYL-L-HOMOCYSTEINE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.76 Å
7PNY Assembly intermediate of human mitochondrial ribosome small subunit without mS37 in complex with RBFA and METTL15 conformation b Deposited 2021-09-08 Assembly 1 Protein–RNA Heteromer；Protein × 31 PDB declaration: 32-meric（32） Consistent with all polymers
Chain a 1–343（343 aa）
Not recorded NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 1 MG MAGNESIUM ION × 61 K POTASSIUM ION × 20 ZN ZINC ION × 1 FES FE2/S2 (INORGANIC) CLUSTER × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 SAH S-ADENOSYL-L-HOMOCYSTEINE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.06 Å
7PNZ Assembly intermediate of human mitochondrial ribosome small subunit without mS37 in complex with RBFA and METTL15 conformation c Deposited 2021-09-08 Assembly 1 Protein–RNA Heteromer；Protein × 31 PDB declaration: 32-meric（32） Consistent with all polymers
Chain a 1–343（343 aa）
Not recorded NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 1 MG MAGNESIUM ION × 61 K POTASSIUM ION × 17 ZN ZINC ION × 1 FES FE2/S2 (INORGANIC) CLUSTER × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 SAH S-ADENOSYL-L-HOMOCYSTEINE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.09 Å
7PO0 Assembly intermediate of human mitochondrial ribosome small subunit without mS37 in complex with RBFA and IF3 Deposited 2021-09-08 Assembly 1 Protein–RNA Heteromer；Protein × 31 PDB declaration: 32-meric（32） Consistent with all polymers
Chain a 1–343（343 aa）
Not recorded NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 1 MG MAGNESIUM ION × 65 K POTASSIUM ION × 17 ZN ZINC ION × 1 FES FE2/S2 (INORGANIC) CLUSTER × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7X9U Type-II KH motif of human mitochondrial RbfA Deposited 2022-03-16 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 86–201（116 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 7；298 K；Ionic strength (raw mmCIF value) 100；Pressure 1
NMR sample composition 0.79 mM [U-99% 13C; U-99% 15N] human mitochondrial RbfA, 100 mM non NaCl, 1 mM [U-99% 2H] d-DTT, 20 mM [U-99% 2H] d-Tris HCl, 0.02 % w/v non NaN3, 90% H2O/10% D2O | 90% H2O/10% D2O
Resolution not provided
8CSR Human mitochondrial small subunit assembly intermediate (State C) Deposited 2022-05-13 Assembly 1 Protein–RNA Heteromer；Protein × 33 PDB declaration: 34-meric（34） Consistent with all polymers
Chain 6 1–343（343 aa）
Not recorded SF4 IRON/SULFUR CLUSTER × 1 SAM S-ADENOSYLMETHIONINE × 1 K POTASSIUM ION × 5 MG MAGNESIUM ION × 31 NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 1 ZN ZINC ION × 1 FES FE2/S2 (INORGANIC) CLUSTER × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.54 Å
8CSS Human mitochondrial small subunit assembly intermediate (State D) Deposited 2022-05-13 Assembly 1 Protein–RNA Heteromer；Protein × 32 PDB declaration: 33-meric（33） Consistent with all polymers
Chain 6 1–343（343 aa）
Not recorded SF4 IRON/SULFUR CLUSTER × 1 SAM S-ADENOSYLMETHIONINE × 1 K POTASSIUM ION × 7 MG MAGNESIUM ION × 32 NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 1 ZN ZINC ION × 1 FES FE2/S2 (INORGANIC) CLUSTER × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.36 Å
8CST Human mitochondrial small subunit assembly intermediate (State E) Deposited 2022-05-13 Assembly 1 Protein–RNA Heteromer；Protein × 31 PDB declaration: 32-meric（32） Consistent with all polymers
Chain 6 1–343（343 aa）
Not recorded SF4 IRON/SULFUR CLUSTER × 1 SAM S-ADENOSYLMETHIONINE × 1 K POTASSIUM ION × 4 MG MAGNESIUM ION × 30 NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 1 ZN ZINC ION × 1 FES FE2/S2 (INORGANIC) CLUSTER × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.85 Å
8CSU Human mitochondrial small subunit assembly intermediate (State C*) Deposited 2022-05-13 Assembly 1 Protein–RNA Heteromer；Protein × 32 PDB declaration: 33-meric（33） Consistent with all polymers
Chain 6 1–343（343 aa）
Not recorded SF4 IRON/SULFUR CLUSTER × 1 SAM S-ADENOSYLMETHIONINE × 1 K POTASSIUM ION × 5 MG MAGNESIUM ION × 26 NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 1 ZN ZINC ION × 1 FES FE2/S2 (INORGANIC) CLUSTER × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.03 Å
8IPL The structure of human mitochondrial methyltransferase METTL15 with RBFA and SAM Deposited 2023-03-14 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 227–260（34 aa）
Not recorded SAM S-ADENOSYLMETHIONINE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；289 K；17% w/v PEG 4000, 0.05M Potassium chloride, 0.1M Lithium chloride, 0.012M Spermine tetrahydrochloride, 0.05M MES PH6.5
Resolution 2.20 Å R-free 0.235
8IPM The structure of human mitochondrial methyltransferase METTL15 with h44_RNA, RBFA and SAM Deposited 2023-03-14 Assembly 1 Protein–RNA Heteromer；Protein × 2 PDB declaration: trimeric（3） Consistent with all polymers
Chain C 227–260（34 aa）
Not recorded SFG SINEFUNGIN × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；289 K；20% PEG 4000, 0.2 M ADA (pH 6.4)
Resolution 3.10 Å R-free 0.288
9G5B Assembly intermediate of human mitochondrial ribosome small subunit (State A) Deposited 2024-07-16 Assembly 1 Protein–RNA Heteromer；Protein × 31 PDB declaration: 32-meric（32） Consistent with all polymers
Chain a 1–343（343 aa）
Not recorded MG MAGNESIUM ION × 12 ZN ZINC ION × 1 FES FE2/S2 (INORGANIC) CLUSTER × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；20mM HEPES-HCl, 100mM KCl, 20mM MgCl2, 0.02% DDM, 1mM PMSF, 1x protease-inhibitor mix, 0.5mM GMP-PNP
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
9G5C Assembly intermediate of human mitochondrial ribosome small subunit (State B) Deposited 2024-07-16 Assembly 1 Protein–RNA Heteromer；Protein × 31 PDB declaration: 32-meric（32） Consistent with all polymers
Chain a 1–343（343 aa）
Not recorded MG MAGNESIUM ION × 23 K POTASSIUM ION × 4 ZN ZINC ION × 1 FES FE2/S2 (INORGANIC) CLUSTER × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 SAH S-ADENOSYL-L-HOMOCYSTEINE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；20mM HEPES-HCl, 100mM KCl, 20mM MgCl2, 0.02% DDM, 1mM PMSF, 1x protease-inhibitor mix, 0.5mM GMP-PNP
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
9G5D Assembly intermediate of human mitochondrial ribosome small subunit (State C) Deposited 2024-07-16 Assembly 1 Protein–RNA Heteromer；Protein × 31 PDB declaration: 32-meric（32） Consistent with all polymers
Chain a 1–343（343 aa）
Not recorded MG MAGNESIUM ION × 10 K POTASSIUM ION × 1 NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 1 ZN ZINC ION × 1 FES FE2/S2 (INORGANIC) CLUSTER × 2 GDP GUANOSINE-5'-DIPHOSPHATE × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 SAH S-ADENOSYL-L-HOMOCYSTEINE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；20mM HEPES-HCl, 100mM KCl, 20mM MgCl2, 0.02% DDM, 1mM PMSF, 1x protease-inhibitor mix, 0.5mM GMP-PNP
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
9H51 Assembly intermediate of human mitochondrial ribosome small subunit in complex with PUS1, METTL15 and RBFA(IN conformation) (state M1) Deposited 2024-10-22 Assembly 1 Protein–RNA Heteromer；Protein × 33 PDB declaration: 34-meric（34） Consistent with all polymers
Chain a 1–343（343 aa）
Not recorded NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 1 SPM SPERMINE × 1 MG MAGNESIUM ION × 40 K POTASSIUM ION × 6 ZN ZINC ION × 1 FES FE2/S2 (INORGANIC) CLUSTER × 2 SAH S-ADENOSYL-L-HOMOCYSTEINE × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9H54 Assembly intermediate of human mitochondrial ribosome small subunit in complex with NOA1 and partial RBFA (state N2) Deposited 2024-10-22 Assembly 1 Protein–RNA Heteromer；Protein × 30 PDB declaration: 31-meric（31） Consistent with all polymers
Chain a 1–343（343 aa）
Not recorded MG MAGNESIUM ION × 42 K POTASSIUM ION × 11 ZN ZINC ION × 1 FES FE2/S2 (INORGANIC) CLUSTER × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
9H55 Assembly intermediate of human mitochondrial ribosome small subunit in complex with NOA1 and TFB1M (state N3) Deposited 2024-10-22 Assembly 1 Protein–RNA Heteromer；Protein × 31 PDB declaration: 32-meric（32） Consistent with all polymers
Chain a 1–343（343 aa）
Not recorded MG MAGNESIUM ION × 41 K POTASSIUM ION × 10 ZN ZINC ION × 1 FES FE2/S2 (INORGANIC) CLUSTER × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9IGT Assembly intermediate of human mitochondrial ribosome small subunit bound to METTL15, RBFA, and mtIF2 (State M2.1) Deposited 2025-02-20 Assembly 1 Protein–RNA Heteromer；Protein × 33 PDB declaration: 34-meric（34） Consistent with all polymers
Chain a 42–343（302 aa）
Not recorded MG MAGNESIUM ION × 12 ZN ZINC ION × 1 FES FE2/S2 (INORGANIC) CLUSTER × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 2 NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 1 SPM SPERMINE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.96 Å
9IGU Assembly intermediate of human mitochondrial ribosome small subunit bound to METTL15 and RBFA (Inward conformation) (State M2) Deposited 2025-02-20 Assembly 1 Protein–RNA Heteromer；Protein × 31 PDB declaration: 32-meric（32） Consistent with all polymers
Chain a 42–343（302 aa）
Not recorded MG MAGNESIUM ION × 31 FES FE2/S2 (INORGANIC) CLUSTER × 2 ZN ZINC ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 1 SPM SPERMINE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.64 Å

This page presents structural evidence recorded in PDB/mmCIF.“No recorded non-water small molecule” does not prove that the experimental sample was ligand-free; experimental conditions belong to the PDB experiment, while ligands and copy counts are shown for each biological assembly.