7n9h

Structure of the mammalian importin a1 bound to the TDP-43 NLS

Method: X-RAY DIFFRACTION Dmax: 96.6 Å Quality: REASONABLE

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

Importin subunit alpha-1

Homo sapiens

UniProt P52292

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 C; UniProt 70–497 Not recorded TAR DNA-binding protein 43 × 1 (Q13148) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5.6;293 K;0.5M sodium citrate, 10 mM mercaptoethanol Resolution 2.20 Å R-free 0.215

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.

16 other PDB entries and 21 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name IMA1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain C; PDBConstruct 1–428; UniProt 70–497

TAR DNA-binding protein 43

Homo sapiens

UniProt Q13148

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 79–102 Fragment:Nuclear localization signal motif, residues 79-102 Importin subunit alpha-1 × 1 (P52292) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5.6;293 K;0.5M sodium citrate, 10 mM mercaptoethanol Resolution 2.20 Å R-free 0.215

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.

41 other PDB entries and 51 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TADBP_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain A; PDBConstruct 1–24; UniProt 79–102

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 7n9h

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7n9h
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7n9h
Deposition date deposition_date2021-06-17
Structure title titleStructure of the mammalian importin a1 bound to the TDP-43 NLS
Keywords keywordsNUCLEAR IMPORT, IMPORTIN ALPHA, NLS, TDP-43, PROTEIN TRANSPORT; PROTEIN TRANSPORT
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier27.78
Radius of gyration Rg (electron density) rg_electron27.61
Forward intensity I(0) i036565200.00
Molecular weight molecular_weight48186.0 kDa
Excluded volume excluded_volume60893 ų
Envelope volume envelope_volume73802 ų
Hydration-shell volume shell_volume24086 ų
Envelope diameter envelope_diameter100.5
Shell Rg shell_rg32.48
Envelope Rg envelope_rg27.75
Shape Rg shape_rg27.61
Total Rg total_rg28.10
Total atoms total_atoms3391
Residues n_residues445
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 dmax96.6
Rg (real space) rg_real28.13
Rg uncertainty (real space) rg_real_error0.92
I(0) (real space) i0_real3.6570e+07
I(0) uncertainty (real space) i0_real_error6.1870e+05
Rg (reciprocal space) rg_reciprocal28.02
I(0) (reciprocal space) i0_reciprocal36560000.0000
Solution quality estimate total_estimate0.6151
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary23.7
Skewness Skewness skewness0.564
Kurtosis Kurtosis kurtosis-0.324
Angular range angular_range— – 0.2850 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha16810000.0000
Real-space data points n_real_points58
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.653; Stabil: 1.000; Sysdev: 0.177; Positv: 1.000; Valcen: 0.622; Smooth: 0.882

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

Domain ID domain_id7n9hC01
Class class1 — Mainly Alpha
Architecture architecture25 — Alpha Horseshoe
Topology topology10 — Leucine-rich Repeat Variant
Homologous superfamily homologous superfamily10 — Leucine-rich Repeat Variant

8. Citations (1)

9. Files and Curves (10)