1b55

PH DOMAIN FROM BRUTON'S TYROSINE KINASE IN COMPLEX WITH INOSITOL 1,3,4,5-TETRAKISPHOSPHATE

Method: X-RAY DIFFRACTION Dmax: 82.3 Å Quality: GOOD

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

TYROSINE-PROTEIN KINASE BTK

Homo sapiens

UniProt Q06187

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 homooligomer Homooligomer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 2–170 Chain B; UniProt 2–170 Fragment:PH DOMAIN AND BTK MOTIF ZN ZINC ION × 4 4IP INOSITOL-(1,3,4,5)-TETRAKISPHOSPHATE × 4 X-RAY DIFFRACTION X-ray crystallization conditions:pH 4.9;pH 4.9 Resolution 2.40 Å R-free 0.350

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.

158 other PDB entries and 227 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name BTK_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–169; UniProt 2–170 Author chain B; PDBConstruct 1–169; UniProt 2–170

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 1b55

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1b55
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1b55
Deposition date deposition_date1999-01-12
Structure title titlePH DOMAIN FROM BRUTON'S TYROSINE KINASE IN COMPLEX WITH INOSITOL 1,3,4,5-TETRAKISPHOSPHATE
Keywords keywords;TRANSFERASE, PH DOMAIN, BTK MOTIF, ZINC BINDING, X-LINKED AGAMMAGLOBULINEMIA, TYROSINE-PROTEIN KINASE, INOSITOL 1, 3, 4, 5-TETRAKISPHOSPHATE ;; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier25.13
Radius of gyration Rg (electron density) rg_electron24.17
Forward intensity I(0) i027113200.00
Molecular weight molecular_weight39588.0 kDa
Excluded volume excluded_volume49494 ų
Envelope volume envelope_volume59610 ų
Hydration-shell volume shell_volume21746 ų
Envelope diameter envelope_diameter84.0
Shell Rg shell_rg29.89
Envelope Rg envelope_rg24.47
Shape Rg shape_rg24.08
Total Rg total_rg25.19
Total atoms total_atoms2768
Residues n_residues325
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 dmax82.3
Rg (real space) rg_real25.30
Rg uncertainty (real space) rg_real_error0.67
I(0) (real space) i0_real2.7110e+07
I(0) uncertainty (real space) i0_real_error4.0580e+05
Rg (reciprocal space) rg_reciprocal25.25
I(0) (reciprocal space) i0_reciprocal27110000.0000
Solution quality estimate total_estimate0.8466
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary23.5
Skewness Skewness skewness0.510
Kurtosis Kurtosis kurtosis-0.406
Angular range angular_range— – 0.3150 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha5954000.0000
Real-space data points n_real_points64
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.747; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.825; Smooth: 0.934

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1b55a_
Class classb — All beta proteins
Fold Fold foldb.55 — PH domain-like barrel
Superfamily Superfamily superfamilyb.55.1 — PH domain-like
Family Family familyb.55.1.1 — Pleckstrin-homology domain (PH domain)
Domain ID domain_idd1b55b_
Class classb — All beta proteins
Fold Fold foldb.55 — PH domain-like barrel
Superfamily Superfamily superfamilyb.55.1 — PH domain-like
Family Family familyb.55.1.1 — Pleckstrin-homology domain (PH domain)

CATH v4.4 (2 domains)

Domain ID domain_id1b55A00
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology29 — PH-domain like
Homologous superfamily homologous superfamily30 — Pleckstrin-homology domain (PH domain)/Phosphotyrosine-binding domain (PTB)
Domain ID domain_id1b55B00
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology29 — PH-domain like
Homologous superfamily homologous superfamily30 — Pleckstrin-homology domain (PH domain)/Phosphotyrosine-binding domain (PTB)

8. Citations (1)

9. Files and Curves (10)