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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：Q9X2V7 New Search
8PDB entries
8Biological assembly
12chain/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
1PP5 Structure of Antibacterial Peptide Microcin J25: a 21-Residue Lariat Protoknot Deposited 2003-06-16 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 38–58（21 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions 298 K；Ionic strength (raw mmCIF value) NA；Pressure ambient
NMR sample composition 2mM Microcin J25 U-13C,15N; 99.5% CD3OH, 0.5% H2O | 99.5% CD3OH, 0.5% H2O
Resolution not provided
1Q71 The structure of microcin J25 is a threaded sidechain-to-backbone ring structure and not a head-to-tail cyclized backbone Deposited 2003-08-14 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 38–58（21 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions 298 K；Ionic strength (raw mmCIF value) 0；Pressure ambient
NMR sample composition 0.3 mg of microcin J25 | 100% CD3OH
Resolution not provided
1S7P Solution structure of thermolysin digested microcin J25 Deposited 2004-01-30 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 38–47（10 aa） Fragment：Residues 38-47
Chain B 48–58（11 aa） Fragment：Residues 48-58
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions 295 K；Ionic strength (raw mmCIF value) 0；Pressure ambient
NMR sample composition 6mM t-MccJ25 | 100% CD3OH
Resolution not provided
2MMT Lasso peptide-based integrin inhibitor: Microcin J25 variant with RGDF substitution of Gly12-Ile13-Gly14-Thr15 Deposited 2014-03-18 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 38–58（21 aa） Fragment：UNP residues 38-58
Mutation：G12R/I13G/G14D/T15F No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions 298 K；Pressure 1.0
NMR sample composition 12.6 mM MCCJ25(RGDF), methanol | methanol
Resolution not provided
2MMW LASSO PEPTIDE BASED INTEGRIN INHIBITOR: MICROCIN J25 VARIANT WITH RGD SUBSTITUTION of GLY12-ILE13-GLY14 Deposited 2014-03-20 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 38–58（21 aa）
Mutation：G12R, I13G, G14D No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions 298 K；Pressure ambient
NMR sample composition 11.6 mM MCCJ25(RGD), methanol | methanol
Resolution not provided
4CU4 FhuA from E. coli in complex with the lasso peptide microcin J25 (MccJ25) Deposited 2014-03-17 Assembly 1 Other combination Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 38–58（21 aa）
Not recorded FTT 3-HYDROXY-TETRADECANOIC ACID × 4 DAO LAURIC ACID × 1 MYR MYRISTIC ACID × 1 LDA LAURYL DIMETHYLAMINE-N-OXIDE × 20 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 1 DPO DIPHOSPHATE × 2 PO4 PHOSPHATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5；20 MM TRIS PH 7.5, 120 MM LITHIUM SULFATE, 100 MM SODIUM CITRATE PH 5, 20 % PEG300
Resolution 2.30 Å R-free 0.255
5T56 [3]catenane from MccJ25 G12R/I13C/G21C lasso peptide Deposited 2016-08-30 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 38–48（11 aa）
Chain B 51–57（7 aa）
Chain C 38–48（11 aa）
Chain D 51–57（7 aa）
Mutation：UNP residues 38-48 Mutation：UNP residues 51-57 Mutation：UNP residues 38-48 Mutation：UNP residues 51-57 No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions 295 K；Pressure ambient
NMR sample composition 3.7 mg/mL [3]catenane from MccJ25 RCC lasso peptide, 95% H2O/5% D2O | 95% H2O/5% D2O
Resolution not provided
6N60 Escherichia coli RNA polymerase sigma70-holoenzyme bound to upstream fork promoter DNA and Microcin J25 (MccJ25) Deposited 2018-11-23 Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: nonameric（9） Consistent with all polymers
Chain M 38–58（21 aa） Fragment：UNP residues 38-58
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.8；295 K；0.1 M HEPES, pH 6.7, 0.2 M magnesium chloride, 7% w/v PEG3350, 4% v/v glycerol
Resolution 3.68 Å R-free 0.306

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.