7I91 | pdb_00007i91

Crystal Structure of 13 bound to the PH domain of Btk

PDB DOI: https://doi.org/10.2210/pdb7I91/pdb
Deposition Group: G_1002333 | Explore G_1002333

Classification: HYDROLASE
Organism(s): Homo sapiens
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2025-03-24 Released: 2026-05-20
Deposition Author(s): Brear, P., West, R.M., Nicolescu, R.C.B., Blaszczyk, B.K., Anwar, A., Deingruber, T., Sanders, M.G., Perez-Areales, F.J., Stephens, L.R., Hawkins, P.T., Spring, D.R., Hyvonen, M.
Funding Organization(s): Other private

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.93 Å
R-Value Free:
0.322 (Depositor), 0.318 (DCC)
R-Value Work:
0.255 (Depositor), 0.248 (DCC)
R-Value Observed:
0.259 (Depositor)

wwPDB Validation 3D Report Full Report

Validation slider image for 7I91

This is version 1.0 of the entry. See complete history.

Literature

Inhibition of a Pleckstrin Homology Domain by Lysine-reactive Covalent Inhibitor

Brear, P., West, R.M., Nicolescu, R.C.B., Blaszczyk, B.K., Anwar, A., Deingruber, T., Sanders, M.G., Perez-Areales, F.J., Stephens, L.R., Hawkins, P.T., Spring, D.R., Hyvonen, M.

To be published.

Macromolecule Content

Total Structure Weight: 80.98 kDa
Atom Count: 5,597
Modeled Residue Count: 637
Deposited Residue Count: 676
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Tyrosine-protein kinase BTK	A, B, C, D	169	Homo sapiens	Mutation(s): 0 Gene Names: BTK, AGMX1, ATK, BPK EC: 2.7.10.2
UniProt & NIH Common Fund Data Resources
Find proteins for Q06187 (Homo sapiens) Explore Q06187 Go to UniProtKB: Q06187
PHAROS: Q06187 GTEx: ENSG00000010671
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q06187
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
A1B6S( Subject of Investigation/LOI) Query on A1B6S Download:Ideal Coordinates CCD File SDF format, chain J [auth C] SDF format, chain H [auth B] SDF format, chain E [auth A] MOL2 format, chain J [auth C] MOL2 format, chain H [auth B] MOL2 format, chain E [auth A] mmCIF format, chain J [auth C] mmCIF format, chain H [auth B] mmCIF format, chain E [auth A]	E [auth A], H [auth B], J [auth C]	(6~{R})-6-(1-oxidanylpyridin-2-yl)-4,5,6,7-tetrahydro-1-benzofuran-3-carboxylic acid C₁₄ H₁₄ N O₄ XFZVYAJUZFOSJD-SECBINFHSA-N		Interactions Focus chain E [auth A] Focus chain H [auth B] Focus chain J [auth C] Interactions & Density Focus chain E [auth A] Focus chain H [auth B] Focus chain J [auth C]
ZN Query on ZN Download:Ideal Coordinates CCD File SDF format, chain M [auth D] SDF format, chain K [auth C] SDF format, chain I [auth B] SDF format, chain F [auth A] MOL2 format, chain M [auth D] MOL2 format, chain K [auth C] MOL2 format, chain I [auth B] MOL2 format, chain F [auth A] mmCIF format, chain M [auth D] mmCIF format, chain K [auth C] mmCIF format, chain I [auth B] mmCIF format, chain F [auth A]	F [auth A], I [auth B], K [auth C], M [auth D]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N		Interactions Focus chain F [auth A] Focus chain I [auth B] Focus chain K [auth C] Focus chain M [auth D] Interactions & Density Focus chain F [auth A] Focus chain I [auth B] Focus chain K [auth C] Focus chain M [auth D]
MG Query on MG Download:Ideal Coordinates CCD File SDF format, chain N [auth D] SDF format, chain L [auth C] SDF format, chain G [auth A] MOL2 format, chain N [auth D] MOL2 format, chain L [auth C] MOL2 format, chain G [auth A] mmCIF format, chain N [auth D] mmCIF format, chain L [auth C] mmCIF format, chain G [auth A]	G [auth A], L [auth C], N [auth D]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions Focus chain G [auth A] Focus chain L [auth C] Focus chain N [auth D] Interactions & Density Focus chain G [auth A] Focus chain L [auth C] Focus chain N [auth D]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.93 Å
R-Value Free: 0.322 (Depositor), 0.318 (DCC)
R-Value Work: 0.255 (Depositor), 0.248 (DCC)
R-Value Observed: 0.259 (Depositor)

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 68.828	α = 90
b = 66.415	β = 101.76
c = 79.59	γ = 90

Software Package:

Software Name	Purpose
BUSTER	refinement
DIALS	data scaling
XDS	data reduction
PHASER	phasing

Structure Validation

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View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-05-20

Deposition Author(s):

Nicolescu, R.C.B.

Blaszczyk, B.K.

Perez-Areales, F.J.

Funding Organization	Location	Grant Number
Other private	United Kingdom	--

Revision History (Full details and data files)

Version 1.0: 2026-05-20
Type: Initial release

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.