9uur

The complex of human pMEK1 and uERK1 (ANP)

Method: ELECTRON MICROSCOPY Dmax: 87.4 Å Quality: EXCELLENT

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

Dual specificity mitogen-activated protein kinase kinase 1

Homo sapiens

UniProt Q02750

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 1–393 Non-standard monomer:Yes (specific site not provided by mmCIF) Mitogen-activated protein kinase 3 × 1 (P27361) ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.36 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.

92 other PDB entries and 122 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name MP2K1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–393; UniProt 1–393

Mitogen-activated protein kinase 3

Homo sapiens

UniProt P27361

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 1–379 Not recorded Dual specificity mitogen-activated protein kinase kinase 1 × 1 (Q02750) ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.36 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.

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

View Construct and Data Evidence
UniProt name MK03_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 2–380; UniProt 1–379

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 9uur

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9uur
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9uur
Deposition date deposition_date2025-05-08
Structure title titleThe complex of human pMEK1 and uERK1 (ANP)
Keywords keywordsMEK1. ERK1, Complex, Kinase, MAPK pathway, TRANSFERASE; TRANSFERASE
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier27.96
Radius of gyration Rg (electron density) rg_electron27.01
Forward intensity I(0) i092689400.00
Molecular weight molecular_weight75540.0 kDa
Excluded volume excluded_volume94690 ų
Envelope volume envelope_volume120210 ų
Hydration-shell volume shell_volume36265 ų
Envelope diameter envelope_diameter91.7
Shell Rg shell_rg35.17
Envelope Rg envelope_rg26.85
Shape Rg shape_rg27.02
Total Rg total_rg27.82
Total atoms total_atoms5300
Residues n_residues655
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 dmax87.4
Rg (real space) rg_real27.83
Rg uncertainty (real space) rg_real_error0.49
I(0) (real space) i0_real9.2690e+07
I(0) uncertainty (real space) i0_real_error1.5310e+06
Rg (reciprocal space) rg_reciprocal27.88
I(0) (reciprocal space) i0_reciprocal92690000.0000
Solution quality estimate total_estimate0.9059
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary33.7
Skewness Skewness skewness0.219
Kurtosis Kurtosis kurtosis-0.476
Angular range angular_range— – 0.2850 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha35770000.0000
Real-space data points n_real_points58
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.931; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.997; Smooth: 0.982

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

8. Citations (1)

9. Files and Curves (10)