8hik

The TPP-bound BRIL-SLC19A1/Fab/Nb ternary complex

Method: ELECTRON MICROSCOPY Dmax: 131.4 Å Quality: GOOD

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

BRIL-SLC19A1 chimera

Homo sapiens

UniProt P0ABE7

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Insufficient information Heteromer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 23–127 Not recorded Anti-BRIL Fab heavy chain × 1 Anti-Fab nanobody × 1 Anti-BRIL Fab light chain × 1 TPP THIAMINE DIPHOSPHATE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.72 Å

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.

714 other PDB entries and 822 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name C562_ECOLX
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 7–111; UniProt 23–127

BRIL-SLC19A1 chimera

Homo sapiens

UniProt P41440

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Insufficient information Heteromer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 24–591 Not recorded Anti-BRIL Fab heavy chain × 1 Anti-Fab nanobody × 1 Anti-BRIL Fab light chain × 1 TPP THIAMINE DIPHOSPHATE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.72 Å

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.

18 other PDB entries and 18 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name S19A1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 113–680; UniProt 24–591

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 8hik

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8hik
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8hik
Deposition date deposition_date2022-11-20
Structure title titleThe TPP-bound BRIL-SLC19A1/Fab/Nb ternary complex
Keywords keywordsSLC19A1, RFC, transporter, folates, 5-MTHF, TPP, TRANSPORT PROTEIN; TRANSPORT PROTEIN
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier42.07
Radius of gyration Rg (electron density) rg_electron42.46
Forward intensity I(0) i0192339000.00
Molecular weight molecular_weight116660.0 kDa
Excluded volume excluded_volume147420 ų
Envelope volume envelope_volume211190 ų
Hydration-shell volume shell_volume42872 ų
Envelope diameter envelope_diameter139.7
Shell Rg shell_rg45.88
Envelope Rg envelope_rg41.02
Shape Rg shape_rg42.44
Total Rg total_rg42.71
Total atoms total_atoms8238
Residues n_residues1055
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 dmax131.4
Rg (real space) rg_real42.33
Rg uncertainty (real space) rg_real_error1.17
I(0) (real space) i0_real1.9230e+08
I(0) uncertainty (real space) i0_real_error3.3160e+06
Rg (reciprocal space) rg_reciprocal42.08
I(0) (reciprocal space) i0_reciprocal192300000.0000
Solution quality estimate total_estimate0.8277
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary34.6
Skewness Skewness skewness0.396
Kurtosis Kurtosis kurtosis-0.592
Angular range angular_range— – 0.1900 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha19350000.0000
Real-space data points n_real_points39
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.928; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.873; Smooth: 0.102

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id8hikA01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology120 — Four Helix Bundle (Hemerythrin (Met), subunit A)
Homologous superfamily homologous superfamily10 — Cytochrome c/b562
Domain ID domain_id8hikA02
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1720 — Multidrug resistance protein D
Homologous superfamily homologous superfamily10 — Multidrug resistance protein D

8. Citations (1)

9. Files and Curves (10)