5ovw

Nanobody-bound BtuF, the vitamin B12 binding protein in Escherichia coli

Method: X-RAY DIFFRACTION Dmax: 155.1 Å Quality: GOOD

1. Protein Identity and Related Structures Protein Identity & Related Structures

Vitamin B12-binding protein

Escherichia coli

UniProt P37028

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 22–266 Not recorded Nanobody × 1 GOL GLYCEROL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293.15 K;PEG4000, Tris-HCl, Magnesium chloride Resolution 2.65 Å R-free 0.259
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 22–266 Not recorded Nanobody × 1 GOL GLYCEROL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293.15 K;PEG4000, Tris-HCl, Magnesium chloride Resolution 2.65 Å R-free 0.259
3 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 22–266 Not recorded Nanobody × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293.15 K;PEG4000, Tris-HCl, Magnesium chloride Resolution 2.65 Å R-free 0.259
4 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain D; UniProt 22–266 Not recorded Nanobody × 1 GOL GLYCEROL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293.15 K;PEG4000, Tris-HCl, Magnesium chloride Resolution 2.65 Å R-free 0.259
5 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain E; UniProt 22–266 Not recorded Nanobody × 1 GOL GLYCEROL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293.15 K;PEG4000, Tris-HCl, Magnesium chloride Resolution 2.65 Å R-free 0.259
6 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain F; UniProt 22–266 Not recorded Nanobody × 1 GOL GLYCEROL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293.15 K;PEG4000, Tris-HCl, Magnesium chloride Resolution 2.65 Å R-free 0.259

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.

10 other PDB entries and 20 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name BTUF_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 25–269; UniProt 22–266 Author chain B; PDBConstruct 25–269; UniProt 22–266 Author chain C; PDBConstruct 25–269; UniProt 22–266 Author chain D; PDBConstruct 25–269; UniProt 22–266 Author chain E; PDBConstruct 25–269; UniProt 22–266 Author chain F; PDBConstruct 25–269; UniProt 22–266

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 5ovw

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 5ovw
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2. Structure Basics 2. Structure Basics

Entry ID entry_id5ovw
Deposition date deposition_date2017-08-30
Structure title titleNanobody-bound BtuF, the vitamin B12 binding protein in Escherichia coli
Keywords keywordsNanobody, Inhibitor, vitamin B12, substrate-binding protein, TRANSPORT PROTEIN; TRANSPORT PROTEIN
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier45.84
Radius of gyration Rg (electron density) rg_electron45.66
Forward intensity I(0) i0870346000.00
Molecular weight molecular_weight242540.0 kDa
Excluded volume excluded_volume303260 ų
Envelope volume envelope_volume413790 ų
Hydration-shell volume shell_volume76097 ų
Envelope diameter envelope_diameter157.9
Shell Rg shell_rg49.34
Envelope Rg envelope_rg45.05
Shape Rg shape_rg45.64
Total Rg total_rg45.86
Total atoms total_atoms17088
Residues n_residues2226
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −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

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax155.1
Rg (real space) rg_real45.86
Rg uncertainty (real space) rg_real_error1.29
I(0) (real space) i0_real8.7030e+08
I(0) uncertainty (real space) i0_real_error1.6050e+07
Rg (reciprocal space) rg_reciprocal45.84
I(0) (reciprocal space) i0_reciprocal870300000.0000
Solution quality estimate total_estimate0.8790
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary50.2
Skewness Skewness skewness0.330
Kurtosis Kurtosis kurtosis-0.420
Angular range angular_range— – 0.1700 −1
Current regularization parameter α current_alpha0.0001
Highest regularization parameter α highest_alpha93560000.0000
Real-space data points n_real_points35
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.864; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.831

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 30 domains

SCOP 2.08 (18 domains)

Domain ID domain_idd5ovwa_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.92 — Chelatase-like
Superfamily Superfamily superfamilyc.92.2 — 'Helical backbone' metal receptor
Family Family familyc.92.2.2 — TroA-like
Domain ID domain_idd5ovwb_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.92 — Chelatase-like
Superfamily Superfamily superfamilyc.92.2 — 'Helical backbone' metal receptor
Family Family familyc.92.2.2 — TroA-like
Domain ID domain_idd5ovwc_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.92 — Chelatase-like
Superfamily Superfamily superfamilyc.92.2 — 'Helical backbone' metal receptor
Family Family familyc.92.2.2 — TroA-like
Domain ID domain_idd5ovwd_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.92 — Chelatase-like
Superfamily Superfamily superfamilyc.92.2 — 'Helical backbone' metal receptor
Family Family familyc.92.2.2 — TroA-like
Domain ID domain_idd5ovwe_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.92 — Chelatase-like
Superfamily Superfamily superfamilyc.92.2 — 'Helical backbone' metal receptor
Family Family familyc.92.2.2 — TroA-like
Domain ID domain_idd5ovwf_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.92 — Chelatase-like
Superfamily Superfamily superfamilyc.92.2 — 'Helical backbone' metal receptor
Family Family familyc.92.2.2 — TroA-like
Domain ID domain_idd5ovwg1
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.1 — V set domains (antibody variable domain-like)
Domain ID domain_idd5ovwg2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd5ovwh1
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.1 — V set domains (antibody variable domain-like)
Domain ID domain_idd5ovwh2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd5ovwi1
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.1 — V set domains (antibody variable domain-like)
Domain ID domain_idd5ovwi2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd5ovwj1
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.1 — V set domains (antibody variable domain-like)
Domain ID domain_idd5ovwj2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd5ovwk1
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.1 — V set domains (antibody variable domain-like)
Domain ID domain_idd5ovwk2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd5ovwl1
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.1 — V set domains (antibody variable domain-like)
Domain ID domain_idd5ovwl2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (12 domains)

Domain ID domain_id5ovwA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1980 — Nitrogenase molybdenum iron protein domain
Domain ID domain_id5ovwA02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1980 — Nitrogenase molybdenum iron protein domain
Domain ID domain_id5ovwB01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1980 — Nitrogenase molybdenum iron protein domain
Domain ID domain_id5ovwB02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1980 — Nitrogenase molybdenum iron protein domain
Domain ID domain_id5ovwC01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1980 — Nitrogenase molybdenum iron protein domain
Domain ID domain_id5ovwC02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1980 — Nitrogenase molybdenum iron protein domain
Domain ID domain_id5ovwD01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1980 — Nitrogenase molybdenum iron protein domain
Domain ID domain_id5ovwD02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1980 — Nitrogenase molybdenum iron protein domain
Domain ID domain_id5ovwE01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1980 — Nitrogenase molybdenum iron protein domain
Domain ID domain_id5ovwE02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1980 — Nitrogenase molybdenum iron protein domain
Domain ID domain_id5ovwF01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1980 — Nitrogenase molybdenum iron protein domain
Domain ID domain_id5ovwF02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1980 — Nitrogenase molybdenum iron protein domain

8. Citations (1)

9. Files and Curves (10)