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1ujw

Structure of the complex between BtuB and Colicin E3 Receptor binding domain

Method: X-RAY DIFFRACTION Dmax: 89.8 Å Quality: REASONABLE
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Vitamin B12 receptor

Escherichia coli

UniProt P06129

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric（2） Consistent with protein copy count Chain A； UniProt 21–614 Not recorded Colicin E3 × 1 （P00646） GP1 2-amino-2-deoxy-1-O-phosphono-alpha-D-glucopyranose × 2 LIM 3-OXO-PENTADECANOIC ACID × 2 LDA LAURYL DIMETHYLAMINE-N-OXIDE × 7 AAE ACETOACETIC ACID × 1 GOL GLYCEROL × 8 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.75 Å R-free 0.293

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 1UJW Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
1NQE OUTER MEMBRANE COBALAMIN TRANSPORTER (BTUB) FROM E. COLI Deposited 2003-01-21 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 21–614（594 aa）
Not recorded MG MAGNESIUM ION × 1 C8E (HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE × 7 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.6；293 K；PEG 3350, magnesium acetate, bis-tris, n-octyl tetraoxyethylene , pH 6.6, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 2.00 Å R-free 0.232
1NQF OUTER MEMBRANE COBALAMIN TRANSPORTER (BTUB) FROM E. COLI, METHIONINE SUBSTIUTION CONSTRUCT FOR SE-MET SAD PHASING Deposited 2003-01-21 Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 21–614（594 aa）
Mutation：W317M, K319M, T321M, W516M, I518M, Y520M Non-standard monomer：Yes (specific site not provided by mmCIF) MG MAGNESIUM ION × 1 C8E (HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.6；293 K；PEG3350, MAGNESIUM ACETATE, BIS-TRIS, N-OCTYL TETRAOXYETHELYENE, tris-(2-carboxyethyl)phosphine hydrochloride , pH 6.6, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 2.70 Å R-free 0.288
1NQG OUTER MEMBRANE COBALAMIN TRANSPORTER (BTUB) FROM E. COLI, WITH BOUND CALCIUM Deposited 2003-01-21 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 21–614（594 aa）
Not recorded CA CALCIUM ION × 4 C8E (HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.6；293 K；PEG 3350, MAGNESIUM ACETATE, BIS-TRIS, N-OCTYL TETRAOXYETHYLENE, pH 6.6, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 3.31 Å R-free 0.259
1NQH OUTER MEMBRANE COBALAMIN TRANSPORTER (BTUB) FROM E. COLI, WITH BOUND CALCIUM AND CYANOCOBALAMIN (VITAMIN B12) SUBSTRATE Deposited 2003-01-21 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 21–614（594 aa）
Not recorded CA CALCIUM ION × 4 CNC CYANOCOBALAMIN × 1 C8E (HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.6；293 K；PEG 3350, MAGNESIUM ACETATE, BIS-TRIS, N-OCTYL TETRAOXYETHYLENE, pH 6.6, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 3.10 Å R-free 0.265
2GSK Structure of the BtuB:TonB Complex Deposited 2006-04-26 Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain A 25–614（590 aa）
Not recorded CA CALCIUM ION × 2 CNC CYANOCOBALAMIN × 1 LDA LAURYL DIMETHYLAMINE-N-OXIDE × 4 OCT N-OCTANE × 3 HEX HEXANE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.1；288 K；30% (v/v) PEG 300, 0.1M sodium acetate , pH 5.1, VAPOR DIFFUSION, SITTING DROP, temperature 288K, pH 5.10
Resolution 2.10 Å R-free 0.251
2GUF In meso crystal structure of the cobalamin transporter, BtuB Deposited 2006-04-29 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 21–614（594 aa）
Not recorded MPG [(Z)-octadec-9-enyl] (2R)-2,3-bis(oxidanyl)propanoate × 11 FMT FORMIC ACID × 1 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.95 Å R-free 0.225
2YSU Structure of the complex between BtuB and Colicin E2 receptor binding domain Deposited 2007-04-04 Different ligand/ion Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain A 21–614（594 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 3.50 Å R-free 0.315
3M8B Crystal structure of spin-labeled BtuB V10R1 in the apo state Deposited 2010-03-17 Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 21–614（594 aa）
Mutation：V10R1A C8E (HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE × 7 MTN S-[(1-oxyl-2,2,5,5-tetramethyl-2,5-dihydro-1H-pyrrol-3-yl)methyl] methanesulfonothioate × 1 MG MAGNESIUM ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.6；290 K；2.5% PEG3350,20 mM Bis Tris, 150 mM Magnesium acetate, 10 mM C8E4, pH 6.6, VAPOR DIFFUSION, HANGING DROP, temperature 290K
Resolution 2.44 Å R-free 0.248
3M8D Crystal structure of spin-labeled BtuB V10R1 with bound calcium and cyanocobalamin Deposited 2010-03-17 Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 21–614（594 aa）
Mutation：V10R1A CNC CYANOCOBALAMIN × 1 C8E (HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE × 6 MTN S-[(1-oxyl-2,2,5,5-tetramethyl-2,5-dihydro-1H-pyrrol-3-yl)methyl] methanesulfonothioate × 1 CA CALCIUM ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.6；290 K；2.5% PEG3350, 150 mM calcium chloride, 20 mM Bis tris, 10 mM C8E4, pH 6.6, VAPOR DIFFUSION, HANGING DROP, temperature 290K
Resolution 2.44 Å R-free 0.275
3RGM Crystal structure of spin-labeled BtuB T156R1 Deposited 2011-04-08 Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 21–614（594 aa）
Mutation：T156R1 C8E (HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE × 6 MG MAGNESIUM ION × 9 MTN S-[(1-oxyl-2,2,5,5-tetramethyl-2,5-dihydro-1H-pyrrol-3-yl)methyl] methanesulfonothioate × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.6；290 K；3.0% PEG3350, 200 mM magnesium acetate, 10mM C8E4, 20 mM Bis Tris pH 6.6, VAPOR DIFFUSION, HANGING DROP, temperature 290K
Resolution 2.60 Å R-free 0.254
3RGN Crystal structure of spin-labeled BtuB W371R1 Deposited 2011-04-08 Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 21–614（594 aa）
Mutation：W371R1 C8E (HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE × 7 MG MAGNESIUM ION × 3 MTN S-[(1-oxyl-2,2,5,5-tetramethyl-2,5-dihydro-1H-pyrrol-3-yl)methyl] methanesulfonothioate × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.6；290 K；3.0% PEG3350, 200 mM magnesium acetate, 10 mM C8E4, 20 mM Bis Tris pH 6.6, VAPOR DIFFUSION, HANGING DROP, temperature 290K
Resolution 2.30 Å R-free 0.250
7NSU ColicinE9 intact translocation complex Deposited 2021-03-08 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain F 21–614（594 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.9
cryo-EM vitrification conditions Cryogen ETHANE；3 uL of diluted translocon preparation were applied on freshly glow discharged grids coated with graphene oxide (as described in https://doi.org/10.1038/s41594-019-0355-2); after 30sec waiting grids were blotted for 8-10 using -10 force and plunge frozen in liquid ethane
Resolution 4.70 Å

12 other PDB entries and 12 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name BTUB_ECOLI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–594； UniProt 21–614

Colicin E3

Escherichia coli

UniProt P00646

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric（2） Consistent with protein copy count Chain B； UniProt 314–448 Fragment：R-domain(residues 314-448) Vitamin B12 receptor × 1 （P06129） GP1 2-amino-2-deoxy-1-O-phosphono-alpha-D-glucopyranose × 2 LIM 3-OXO-PENTADECANOIC ACID × 2 LDA LAURYL DIMETHYLAMINE-N-OXIDE × 7 AAE ACETOACETIC ACID × 1 GOL GLYCEROL × 8 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.75 Å R-free 0.293

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 1UJW Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
1E44 ribonuclease domain of colicin E3 in complex with its immunity protein Deposited 2000-06-28 Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain B 456–551（96 aa） Fragment：RIBONUCLEASE DOMAIN RESIDUES 456-551
Not recorded EDO 1,2-ETHANEDIOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.6；0.1 M NA CITRATE PH 5.6, 20% ISOPROPANOL, 10% PEG 4000
Resolution 2.40 Å R-free 0.228
1JCH Crystal Structure of Colicin E3 in Complex with its Immunity Protein Deposited 2001-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric
Chain A 1–551（551 aa）
Chain C 1–551（551 aa）
Not recorded CIT CITRIC ACID × 4 GOL GLYCEROL × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.6；277 K；SODIUM CITRATE, CADMIUM ACETATE, ph 5.6, VAPOR DIFFUSION, HANGING DROP at 277K
Resolution 3.02 Å R-free 0.283
1JCH Crystal Structure of Colicin E3 in Complex with its Immunity Protein Deposited 2001-06-09 Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain A 1–551（551 aa）
Not recorded CIT CITRIC ACID × 2 GOL GLYCEROL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.6；277 K；SODIUM CITRATE, CADMIUM ACETATE, ph 5.6, VAPOR DIFFUSION, HANGING DROP at 277K
Resolution 3.02 Å R-free 0.283
1JCH Crystal Structure of Colicin E3 in Complex with its Immunity Protein Deposited 2001-06-09 Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain C 1–551（551 aa）
Not recorded CIT CITRIC ACID × 2 GOL GLYCEROL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.6；277 K；SODIUM CITRATE, CADMIUM ACETATE, ph 5.6, VAPOR DIFFUSION, HANGING DROP at 277K
Resolution 3.02 Å R-free 0.283
2B5U Crystal Structure Of Colicin E3 V206C Mutant In Complex With Its Immunity Protein Deposited 2005-09-29 Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain A 1–551（551 aa）
Mutation：V206C CIT CITRIC ACID × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 5.6；277 K；Sodium citrate, pH 5.6, VAPOR DIFFUSION, temperature 277K
Resolution 2.30 Å R-free 0.295
2B5U Crystal Structure Of Colicin E3 V206C Mutant In Complex With Its Immunity Protein Deposited 2005-09-29 Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain C 1–551（551 aa）
Mutation：V206C CIT CITRIC ACID × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 5.6；277 K；Sodium citrate, pH 5.6, VAPOR DIFFUSION, temperature 277K
Resolution 2.30 Å R-free 0.295
4UDM Crystal structure of Im3 in complex with Y52A mutant of E3RNase Deposited 2014-12-10 Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain B 456–551（96 aa） Fragment：RIBONUCLEASE DOMAIN, UNP RESIDUES 456-551
Mutation：YES CA CALCIUM ION × 3 CL CHLORIDE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 6.5；0.1M BIS-TRIS PH 6.5, 50MM CACL2,30%PEG550MME
Resolution 2.96 Å R-free 0.214
4V5K Structure of cytotoxic domain of colicin E3 bound to the 70S ribosome Deposited 2010-05-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Insufficient information Heteromer；Protein × 52 PDB declaration: 58-meric
Chain AY 455–551（97 aa） Fragment：RESIDUES 455-551
Mutation：YES MG MAGNESIUM ION × 1164 ZN ZINC ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.18；AS STATED IN STRUCTURE OF THE 70S RIBOSOME COMPLEXED WITH MRNA AND TRNA. (2006) SCIENCE 313: 1935, PH 7.18
Resolution 3.20 Å R-free 0.270
4V5K Structure of cytotoxic domain of colicin E3 bound to the 70S ribosome Deposited 2010-05-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 2 Insufficient information Heteromer；Protein × 52 PDB declaration: 58-meric
Chain CY 455–551（97 aa） Fragment：RESIDUES 455-551
Mutation：YES MG MAGNESIUM ION × 1170 ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.18；AS STATED IN STRUCTURE OF THE 70S RIBOSOME COMPLEXED WITH MRNA AND TRNA. (2006) SCIENCE 313: 1935, PH 7.18
Resolution 3.20 Å R-free 0.270

5 other PDB entries and 9 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CEA3_ECOLI
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B； PDBConstruct 1–135； UniProt 314–448

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 1ujw

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1ujw
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1ujw
Deposition date deposition_date2003-08-12
Structure title titleStructure of the complex between BtuB and Colicin E3 Receptor binding domain
Keywords keywordsbeta-barrel, coiled-coil, TRANSPORT PROTEIN-HYDROLASE COMPLEX; TRANSPORT PROTEIN/HYDROLASE
Experimental Method methodX-RAY DIFFRACTION
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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier30.96 Å
Radius of gyration Rg (electron density) rg_electron31.34 Å
Forward intensity I(0) i0106483000.00
Molecular weight molecular_weight80729.0 kDa
Excluded volume excluded_volume100590 ų
Envelope volume envelope_volume131070 ų
Hydration-shell volume shell_volume37615 ų
Envelope diameter envelope_diameter138.0 Å
Shell Rg shell_rg35.36 Å
Envelope Rg envelope_rg33.77 Å
Shape Rg shape_rg31.31 Å
Total Rg total_rg31.79 Å
Total atoms total_atoms5704
Residues n_residues692
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 Å−1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3
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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax89.8 Å
Rg (real space) rg_real27.99 Å
Rg uncertainty (real space) rg_real_error0.30 Å
I(0) (real space) i0_real1.0100e+08
I(0) uncertainty (real space) i0_real_error1.3740e+06
Rg (reciprocal space) rg_reciprocal31.40 Å
I(0) (reciprocal space) i0_reciprocal106500000.0000
Solution quality estimate total_estimate0.6397
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary33.4 Å
Skewness Skewness skewness0.583
Kurtosis Kurtosis kurtosis0.323
Angular range angular_range— – 0.2550 Å−1
Current regularization parameter α current_alpha0.7136
Highest regularization parameter α highest_alpha13050000.0000
Real-space data points n_real_points52
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.001; Oscil: 0.770; Stabil: 0.985; Sysdev: 0.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.131
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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (8)

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7. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1ujwa_
Class classf — Membrane and cell surface proteins and peptides
Fold Fold foldf.4 — Transmembrane beta-barrels
Superfamily Superfamily superfamilyf.4.3 — Porins
Family Family familyf.4.3.3 — Ligand-gated protein channel
Domain ID domain_idd1ujwb_
Class classh — Coiled coil proteins
Fold Fold foldh.4 — Antiparallel coiled-coil
Superfamily Superfamily superfamilyh.4.9 — Colicin E3 receptor domain
Family Family familyh.4.9.1 — Colicin E3 receptor domain

CATH v4.4 (3 domains)

Domain ID domain_id1ujwA01
Class class2 — Mainly Beta
Architecture architecture170 — Beta Complex
Topology topology130 — Ferric Hydroxamate Uptake Protein; Chain A, domain 1
Homologous superfamily homologous superfamily10 — TonB-dependent receptor, plug domain
Domain ID domain_id1ujwA02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology170 — Maltoporin; Chain A
Homologous superfamily homologous superfamily20 — TonB-dependent receptor, beta-barrel domain
Domain ID domain_id1ujwB00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology287 — Helix Hairpins
Homologous superfamily homologous superfamily620 — Helix Hairpins
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8. Citations (1)

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9. Files and Curves (10)