3zlx

Crystal structure of MEK1 in complex with fragment 18

Method: X-RAY DIFFRACTION Dmax: 73.1 Å Quality: REASONABLE

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 37–383 Mutation:YES 5EZ 7-choro-6-[(3R)-pyrrolidin-3-ylmethoxy]isoquinolin-1(2H)-one × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 7.7;Appropriate single crystals were grown using this set-up in PEG 4000 18%, Tris 100mM pH7.7, DMSO 2% and CaCl2 0.2M and were extracted from the low volume drops, cryo-protected in mother liquor with 20% glycerol and flash cooled for synchrotron collection Resolution 2.20 Å R-free 0.236

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 2–348; UniProt 37–383

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 3zlx

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3zlx
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3zlx
Deposition date deposition_date2013-02-04
Structure title titleCrystal structure of MEK1 in complex with fragment 18
Keywords keywordsTRANSFERASE; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier20.93
Radius of gyration Rg (electron density) rg_electron19.75
Forward intensity I(0) i020437300.00
Molecular weight molecular_weight35002.0 kDa
Excluded volume excluded_volume44192 ų
Envelope volume envelope_volume52149 ų
Hydration-shell volume shell_volume21811 ų
Envelope diameter envelope_diameter67.2
Shell Rg shell_rg26.42
Envelope Rg envelope_rg20.01
Shape Rg shape_rg19.77
Total Rg total_rg20.62
Total atoms total_atoms2457
Residues n_residues312
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 dmax73.1
Rg (real space) rg_real21.58
Rg uncertainty (real space) rg_real_error0.22
I(0) (real space) i0_real2.0360e+07
I(0) uncertainty (real space) i0_real_error2.2250e+05
Rg (reciprocal space) rg_reciprocal20.84
I(0) (reciprocal space) i0_reciprocal20440000.0000
Solution quality estimate total_estimate0.6569
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary25.4
Skewness Skewness skewness0.440
Kurtosis Kurtosis kurtosis0.113
Angular range angular_range— – 0.3800 −1
Current regularization parameter α current_alpha5.2130
Highest regularization parameter α highest_alpha5439000.0000
Real-space data points n_real_points70
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.775; Stabil: 0.910; Sysdev: 0.000; Positv: 1.000; Valcen: 0.996; Smooth: 0.530

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd3zlxa_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.144 — Protein kinase-like (PK-like)
Superfamily Superfamily superfamilyd.144.1 — Protein kinase-like (PK-like)
Family Family familyd.144.1.7 — Protein kinases, catalytic subunit

CATH v4.4 (2 domains)

Domain ID domain_id3zlxA01
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_id3zlxA02
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)