22TG | pdb_000022tg

Crystal Structure of MYST histone acetyltransferase KAT6A in complex with Compound 20

PDB DOI: https://doi.org/10.2210/pdb22TG/pdb

Classification: TRANSCRIPTION
Organism(s): Homo sapiens
Expression System: Escherichia coli
Mutation(s): Yes

Deposited: 2026-01-22 Released: 2026-03-11
Deposition Author(s): NarasimhaRao, K., Vijayshankar, N., SumalathaRani, T., Kalishankar, B., Chandregowda, V., Chandrasekar, A., Susanta, S., Raymond, A.N., David, C.M.
Funding Organization(s): Not funded

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.40 Å
R-Value Free:
0.372 (Depositor), 0.372 (DCC)
R-Value Work:
0.293 (Depositor), 0.293 (DCC)

Starting Model: experimental
View more details

wwPDB Validation 3D Report Full Report

Validation slider image for 22TG

Ligand Structure Quality Assessment

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

Literature

Crystal Structure of MYST histone acetyltransferase KAT6A in complex with Compound 20

NarasimhaRao, K., Vijayshankar, N., SumalathaRani, T., Kalishankar, B., Chandregowda, V., Chandrasekar, A., Susanta, S., Raymond, A.N., David, C.M.

To be published.

Macromolecule Content

Total Structure Weight: 69.98 kDa
Atom Count: 4,450
Modeled Residue Count: 515
Deposited Residue Count: 590
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Histone acetyltransferase KAT8	A, B [auth C]	295	Homo sapiens	Mutation(s): 6 Gene Names: KAT8, MOF, MYST1, PP7073 EC: 2.3.1.48 (PDB Primary Data), 2.3.1 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for Q9H7Z6 (Homo sapiens) Explore Q9H7Z6 Go to UniProtKB: Q9H7Z6
PHAROS: Q9H7Z6 GTEx: ENSG00000103510
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q9H7Z6
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
A1MDU (Subject of Investigation/LOI) Query on A1MDU Download:Ideal Coordinates CCD File SDF format, chain D [auth C] SDF format, chain C [auth A] MOL2 format, chain D [auth C] MOL2 format, chain C [auth A] mmCIF format, chain D [auth C] mmCIF format, chain C [auth A]	C [auth A], D [auth C]	2,6-dimethoxy-~{N}-[4-(pyrazol-1-ylmethyl)-2,3-dihydrofuro[2,3-e][1,2]benzoxazol-8-yl]benzenesulfonamide C₂₁ H₂₀ N₄ O₆ S BYICTVGRFYUHAA-UHFFFAOYSA-N		Interactions Focus chain C [auth A] Focus chain D [auth C] Interactions & Density Focus chain C [auth A] Focus chain D [auth C]

Modified Residues 1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
ALY Query on ALY	A, B [auth C]	L-PEPTIDE LINKING	C₈ H₁₆ N₂ O₃		LYS

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.40 Å
R-Value Free: 0.372 (Depositor), 0.372 (DCC)
R-Value Work: 0.293 (Depositor), 0.293 (DCC)

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 58.685	α = 90
b = 46.405	β = 90.021
c = 120.922	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
CrystFEL	data reduction
CrystalClear	data scaling
MOLREP	phasing

Structure Validation

View Full Validation Report

Ligand Structure Quality Assessment

View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-03-11

Deposition Author(s):

NarasimhaRao, K.

Vijayshankar, N.

SumalathaRani, T.

Kalishankar, B.

Chandregowda, V.

Chandrasekar, A.

Funding Organization	Location	Grant Number
Not funded	India	--

Revision History (Full details and data files)

Version 1.0: 2026-03-11
Type: Initial release

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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.