8vsu

Cryo-EM structure of LKB1-STRADalpha-MO25alpha heterocomplex

Method: ELECTRON MICROSCOPY Dmax: 96.6 Å Quality: GOOD

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

Calcium-binding protein 39

Homo sapiens

UniProt Q9Y376

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 × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 1–341 Not recorded Serine/threonine-protein kinase STK11 × 1 (Q15831) Isoform 3 of STE20-related kinase adapter protein alpha × 1 (Q7RTN6) ADP ADENOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.6 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.86 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.

9 other PDB entries and 11 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CAB39_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–341; UniProt 1–341

Serine/threonine-protein kinase STK11

Homo sapiens

UniProt Q15831

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 × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain C; UniProt 1–433 Not recorded Calcium-binding protein 39 × 1 (Q9Y376) Isoform 3 of STE20-related kinase adapter protein alpha × 1 (Q7RTN6) ADP ADENOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.6 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.86 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.

3 other PDB entries and 4 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name STK11_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain C; PDBConstruct 17–449; UniProt 1–433

Isoform 3 of STE20-related kinase adapter protein alpha

Homo sapiens

UniProt Q7RTN6

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 × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain B; UniProt 1–394 Not recorded Calcium-binding protein 39 × 1 (Q9Y376) Serine/threonine-protein kinase STK11 × 1 (Q15831) ADP ADENOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.6 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.86 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.

2 other PDB entries and 3 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name STRAA_HUMAN
Isoform Q7RTN6-3
PDB entities 3
Chains and sequence ranges Author chain B; PDBConstruct 15–408; UniProt 1–394

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 8vsu

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id8vsu
Deposition date deposition_date2024-01-24
Structure title titleCryo-EM structure of LKB1-STRADalpha-MO25alpha heterocomplex
Keywords keywordsserine/threonine kinase, pseudokinase, complex, TRANSFERASE; TRANSFERASE
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier31.65
Radius of gyration Rg (electron density) rg_electron30.68
Forward intensity I(0) i0177391000.00
Molecular weight molecular_weight107940.0 kDa
Excluded volume excluded_volume136200 ų
Envelope volume envelope_volume180020 ų
Hydration-shell volume shell_volume47714 ų
Envelope diameter envelope_diameter101.9
Shell Rg shell_rg38.77
Envelope Rg envelope_rg30.35
Shape Rg shape_rg30.68
Total Rg total_rg31.41
Total atoms total_atoms15240
Residues n_residues941
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_real31.43
Rg uncertainty (real space) rg_real_error0.51
I(0) (real space) i0_real1.7740e+08
I(0) uncertainty (real space) i0_real_error2.7250e+06
Rg (reciprocal space) rg_reciprocal31.53
I(0) (reciprocal space) i0_reciprocal177400000.0000
Solution quality estimate total_estimate0.8959
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary42.5
Skewness Skewness skewness0.131
Kurtosis Kurtosis kurtosis-0.440
Angular range angular_range— – 0.2500 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha62020000.0000
Real-space data points n_real_points51
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.925; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.975; Smooth: 0.893

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

8. Citations (1)

9. Files and Curves (10)