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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：A0A045H2R3 New Search
16PDB entries
16Biological assembly
16chain/assembly records
Main Difference Dimensions in This Set
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
6TYE Crystal structure of MTB sigma L transcription initiation complex with 5 nt long RNA primer Deposited 2019-08-08 Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: nonameric（9） Consistent with all polymers
Chain E 1–110（110 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；295 K；100 mM sodium citrate tribasic dihydrate, pH 5.6, 200 mM sodium acetate, and 10% PEG4000
Resolution 3.79 Å R-free 0.279
6TYF Crystal structure of MTB sigma L transcription initiation complex with 6 nt long RNA primer Deposited 2019-08-08 Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: nonameric（9） Consistent with all polymers
Chain E 1–110（110 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；100 mM sodium citrate tribasic dihydrate, pH 5.6, 200 mM sodium acetate, and 10% PEG4000
Resolution 3.80 Å R-free 0.300
6TYG Crystal structure of MTB sigma L transcription initiation complex with 9 nt long RNA primer Deposited 2019-08-08 Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: nonameric（9） Consistent with all polymers
Chain E 1–110（110 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；100 mM sodium citrate tribasic dihydrate, pH 5.6, 200 mM sodium acetate, and 10% PEG4000
Resolution 3.50 Å R-free 0.293
7RWI Mycobacterium tuberculosis RNA polymerase sigma L holoenzyme open promoter complex containing TNP-2198 Deposited 2021-08-19 Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric（8） Consistent with all polymers
Chain E 1–110（110 aa）
Not recorded 7US (3aM,9S,10bP,14S,15R,16S,17R,18R,19R,20S,21S,25R)-6,18,20-trihydroxy-14-methoxy-7,9,15,17,19,21,25-heptamethyl-1'-[2-(2-methyl-5-nitro-1H-imidazol-1-yl)ethyl]-5,10,26-trioxo-3,5,9,10-tetrahydrospiro[9,4-(epoxypentadecanoimino)furo[2',3':7,8]naphtho[1,2-d]imidazole-2,4'-piperidin]-16-yl acetate × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；100 mM sodium citrate tribasic dihydrate, pH 5.6, 200 mM sodium acetate, 10% PEG4000
Resolution 3.70 Å R-free 0.245
7U22 Mycobacterium tuberculosis RNA polymerase sigma A holoenzyme open promoter complex containing UMN-7 Deposited 2022-02-22 Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric（8） Consistent with all polymers
Chain E 1–110（110 aa）
Not recorded KYO (9S,14S,15R,16S,17R,18R,19R,20S,21S,25R)-5,6,18,20-tetrahydroxy-14-methoxy-7,9,15,17,19,21,25-heptamethyl-1'-(2-methylpropyl)-10,26-dioxo-1,3,9,10-tetrahydrospiro[9,4-(epoxypentadecanoimino)furo[2',3':7,8]naphtho[1,2-d]imidazole-2,4'-piperidin]-16-yl benzoate × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.2；296 K；20 mM Tris-HCl, pH 8.2, 200 mM potassium chloride, 20 mM magnesium chloride, 7% (m/v) PEG-3350
Resolution 3.87 Å R-free 0.278
9E7V Off-pathway Mycobacterium tuberculosis transcription initiation promoter complex (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-04 Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: decameric（10） Consistent with all polymers
Chain E 1–110（110 aa）
Not recorded POP PYROPHOSPHATE 2- × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9E7Y De Novo Mycobacterium tuberculosis transcription initiation promoter complex with 7-mer RNA and disordered Beta' Lid element (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-04 Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: undecameric（11） Consistent with all polymers
Chain E 1–110（110 aa）
Not recorded POP PYROPHOSPHATE 2- × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.20 Å
9E84 De Novo Mycobacterium tuberculosis transcription initiation promoter complex with 6-mer RNA and disordered Sigma-A region 4 domain (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-05 Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: 11-meric（11） Consistent with all polymers
Chain E 1–110（110 aa）
Not recorded POP PYROPHOSPHATE 2- × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
9E85 De Novo Mycobacterium tuberculosis transcription initiation promoter complex with 6-mer RNA and closed Beta' clamp (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-05 Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: 11-meric（11） Consistent with all polymers
Chain E 1–110（110 aa）
Not recorded POP PYROPHOSPHATE 2- × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9E86 De Novo Mycobacterium tuberculosis transcription initiation promoter complex with 5-mer RNA and open Beta' clamp (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-05 Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: 11-meric（11） Consistent with all polymers
Chain E 1–110（110 aa）
Not recorded POP PYROPHOSPHATE 2- × 1 ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
9E87 De Novo Mycobacterium tuberculosis transcription initiation pre-RPO promoter complex with open Beta' clamp (RNA Polymerase with Sigma-A, CarD, and RbpA) Deposited 2024-11-05 Assembly 1 Insufficient information Heteromer；Protein × 8 PDB declaration: decameric（10） Consistent with all polymers
Chain E 1–110（110 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
9E88 De novo backtracked transcription elongation complex of Mycobacterium tuberculosis RNA polymerase on a linear DNA fragment (TEC-Backtracked) Deposited 2024-11-05 Assembly 1 Insufficient information Heteromer；Protein × 6 PDB declaration: nonameric（9） Consistent with all polymers
Chain E 1–110（110 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9JI2 Cryo-EM structure of Mycobacterium tuberculosis transcription activation complex with unphosphated PhoP Deposited 2024-09-11 Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric（8） Consistent with all polymers
Chain E 1–110（110 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.9
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.38 Å
9JI3 Cryo-EM structure of Mycobacterium tuberculosis transcription activation complex with two PhoP molecules Deposited 2024-09-11 Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: decameric（10） Consistent with all polymers
Chain E 1–110（110 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.9
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.36 Å
9JI4 Cryo-EM structure of Mycobacterium tuberculosis transcription activation complex with four PhoP molecules Deposited 2024-09-11 Assembly 1 Protein–DNA Heteromer；Protein × 10 PDB declaration: 12-meric（12） Consistent with all polymers
Chain E 1–110（110 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.9
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.54 Å
9JI5 Cryo-EM structure of Mycobacterium tuberculosis transcription activation complex with six PhoP molecules Deposited 2024-09-11 Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric（15） Consistent with all polymers
Chain E 1–110（110 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.9
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 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.