4an9

Crystal structures of human MEK1 with carboxamide-based allosteric inhibitor XL518 (GDC-0973), or related analogs.

Method: X-RAY DIFFRACTION Dmax: 62.5 Å Quality: GOOD

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 61–262 Chain A; UniProt 305–392 Fragment:PROTEIN KINASE DOMAIN, RESIDUES 61-262,305-392 Mutation:YES ACP PHOSPHOMETHYLPHOSPHONIC ACID ADENYLATE ESTER × 1 MG MAGNESIUM ION × 1 2P7 [3,4-BIS(FLUORANYL)-2-[(2-FLUORANYL-4-IODANYL-PHENYL)AMINO]PHENYL]-(3-OXIDANYLAZETIDIN-1-YL)METHANONE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8.9;SITTING DROP VAPOR-DIFFUSION VS. 26.5 % PEG-2000 MME, 0.1 M TRIMETHYLAMINE N-OXIDE, 0.1 M TRIS (PH 8.9) Resolution 2.80 Å R-free 0.313

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 4–205; UniProt 61–262 Author chain A; PDBConstruct 206–293; UniProt 305–392

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 4an9

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4an9
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4an9
Deposition date deposition_date2012-03-16
Structure title titleCrystal structures of human MEK1 with carboxamide-based allosteric inhibitor XL518 (GDC-0973), or related analogs.
Keywords keywordsTRANSFERASE, MAP2K1, ATP-BINDING, ALLOSTERIC INHIBITION; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier19.86
Radius of gyration Rg (electron density) rg_electron18.92
Forward intensity I(0) i018425900.00
Molecular weight molecular_weight32306.0 kDa
Excluded volume excluded_volume40367 ų
Envelope volume envelope_volume46612 ų
Hydration-shell volume shell_volume20375 ų
Envelope diameter envelope_diameter64.2
Shell Rg shell_rg25.45
Envelope Rg envelope_rg19.22
Shape Rg shape_rg18.96
Total Rg total_rg19.71
Total atoms total_atoms2254
Residues n_residues281
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 dmax62.5
Rg (real space) rg_real19.76
Rg uncertainty (real space) rg_real_error0.34
I(0) (real space) i0_real1.8430e+07
I(0) uncertainty (real space) i0_real_error2.1270e+05
Rg (reciprocal space) rg_reciprocal19.78
I(0) (reciprocal space) i0_reciprocal18430000.0000
Solution quality estimate total_estimate0.8154
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary24.7
Skewness Skewness skewness0.241
Kurtosis Kurtosis kurtosis-0.363
Angular range angular_range— – 0.4000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha4574000.0000
Real-space data points n_real_points72
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.867; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.000

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_id4an9A01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology200 — Phosphorylase Kinase; domain 1
Homologous superfamily homologous superfamily20 — Phosphorylase Kinase; domain 1
Domain ID domain_id4an9A02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology510 — Transferase(Phosphotransferase); domain 1
Homologous superfamily homologous superfamily10 — Transferase(Phosphotransferase) domain 1

8. Citations (1)

9. Files and Curves (10)