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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：Q9H7H0 New Search
6PDB entries
6Biological assembly
6chain/assembly records
Main Difference Dimensions in This Set
Different assembly state Different ligand/ion 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
8CSP Human mitochondrial small subunit assembly intermediate (State A) Deposited 2022-05-13 Assembly 1 Protein–RNA Heteromer；Protein × 32 PDB declaration: 33-meric（33） Consistent with all polymers
Chain 7 1–456（456 aa）
Not recorded SF4 IRON/SULFUR CLUSTER × 1 SAM S-ADENOSYLMETHIONINE × 1 K POTASSIUM ION × 4 MG MAGNESIUM ION × 28 FES FE2/S2 (INORGANIC) CLUSTER × 2 ZN ZINC ION × 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 2.66 Å
8CSQ Human mitochondrial small subunit assembly intermediate (State B) Deposited 2022-05-13 Assembly 1 Protein–RNA Heteromer；Protein × 32 PDB declaration: 33-meric（33） Consistent with all polymers
Chain 7 1–456（456 aa）
Not recorded SF4 IRON/SULFUR CLUSTER × 1 SAM S-ADENOSYLMETHIONINE × 1 K POTASSIUM ION × 4 MG MAGNESIUM ION × 27 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
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 7 1–456（456 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 7 1–456（456 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 7 1–456（456 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 7 1–456（456 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

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.