3byo

X-Ray co-crystal structure of 2-amino-6-phenylpyrimido[5',4':5,6]pyrimido[1,2-a]benzimidazol-5(6H)-one 25 bound to Lck

Method: X-RAY DIFFRACTION Dmax: 66.1 Å Quality: REASONABLE

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

Proto-oncogene tyrosine-protein kinase LCK

Homo sapiens

UniProt P06239

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 231–501 Fragment:kinase domain Non-standard monomer:Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 1 AM9 6-(2,6-dimethylphenyl)-2-{[4-(4-methylpiperazin-1-yl)phenyl]amino}pyrimido[5',4':5,6]pyrimido[1,2-a]benzimidazol-5(6H)-one × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8.5;277 K;0.2 M Li2SO4, 25-35% PEG4000, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K Resolution 2.00 Å R-free 0.259

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.

54 other PDB entries and 58 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name LCK_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–271; UniProt 231–501

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 3byo

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id3byo
Deposition date deposition_date2008-01-16
Structure title titleX-Ray co-crystal structure of 2-amino-6-phenylpyrimido[5',4':5,6]pyrimido[1,2-a]benzimidazol-5(6H)-one 25 bound to Lck
Keywords keywords;Lck, kinase domain, Alternative splicing, ATP-binding, Chromosomal rearrangement, Cytoplasm, Disease mutation, Host-virus interaction, Lipoprotein, Membrane, Myristate, Nucleotide-binding, Palmitate, Phosphoprotein, Proto-oncogene, SH2 domain, SH3 domain, Transferase, Tyrosine-protein kinase ;; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier20.40
Radius of gyration Rg (electron density) rg_electron19.33
Forward intensity I(0) i017064200.00
Molecular weight molecular_weight31749.0 kDa
Excluded volume excluded_volume39910 ų
Envelope volume envelope_volume46133 ų
Hydration-shell volume shell_volume19969 ų
Envelope diameter envelope_diameter67.0
Shell Rg shell_rg25.66
Envelope Rg envelope_rg19.55
Shape Rg shape_rg19.35
Total Rg total_rg20.19
Total atoms total_atoms2237
Residues n_residues270
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 dmax66.1
Rg (real space) rg_real20.32
Rg uncertainty (real space) rg_real_error0.42
I(0) (real space) i0_real1.7060e+07
I(0) uncertainty (real space) i0_real_error2.1450e+05
Rg (reciprocal space) rg_reciprocal20.34
I(0) (reciprocal space) i0_reciprocal17060000.0000
Solution quality estimate total_estimate0.6285
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary24.6
Skewness Skewness skewness0.258
Kurtosis Kurtosis kurtosis-0.349
Angular range angular_range— – 0.3900 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha4607000.0000
Real-space data points n_real_points71
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.863; Stabil: 1.000; Sysdev: 0.193; Positv: 1.000; Valcen: 0.999; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd3byoa_
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_id3byoA01
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_id3byoA02
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)