9IT5 | pdb_00009it5

p300 KAT domain in complex with KB528

PDB DOI: https://doi.org/10.2210/pdb9IT5/pdb

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

Deposited: 2024-07-19 Released: 2025-07-23
Deposition Author(s): Rahl, P., Gao, H., Calderon, Y., Wang, Z.-F.
Funding Organization(s): Not funded

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.00 Å
R-Value Free:
0.238 (Depositor), 0.237 (DCC)
R-Value Work:
0.188 (Depositor), 0.194 (DCC)

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

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

Literature

p300 catalytic inhibition selectively targets IRF4 oncogenic activity in multiple myeloma

Lenoir, F., McKeown, M., Giorgetti, G., Kobylarz, M., Hopkins, T., Glore, W., Shum, M., Calderon, Y., Carvajal, L., Mori, K., Gao, H., Zhou, M., Trotter, B., Dinsmore, C., Munshi, N., Lin, C., Fulciniti, M., Mariateresa, F., Rahl, P.

To be published.

Macromolecule Content

Total Structure Weight: 82.09 kDa
Atom Count: 6,007
Modeled Residue Count: 660
Deposited Residue Count: 698
Unique protein chains: 1

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Histone acetyltransferase p300	A, B	349	Homo sapiens	Mutation(s): 2 Gene Names: EP300, P300 EC: 2.3.1.48 (PDB Primary Data), 2.3.1 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for Q09472 (Homo sapiens) Explore Q09472 Go to UniProtKB: Q09472
PHAROS: Q09472 GTEx: ENSG00000100393
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	Q09472
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
A1L3B (Subject of Investigation/LOI) Query on A1L3B Download Ideal Coordinates CCD File SDF format, chain G [auth B] SDF format, chain C [auth A] MOL2 format, chain G [auth B] MOL2 format, chain C [auth A] mmCIF format, chain G [auth B] mmCIF format, chain C [auth A]	C [auth A], G [auth B]	4-[(2~{S})-1-[[(~{R})-[(3~{S})-7-(1-methylpyrazol-4-yl)-2,3-dihydro-1~{H}-pyrido[2,3-b][1,4]oxazin-3-yl]-phenyl-methyl]amino]propan-2-yl]benzenecarbonitrile C₂₈ H₂₈ N₆ O CMLDQXRCCGCFFB-PGMDNKBISA-N		Interactions Focus chain C [auth A] Focus chain G [auth B] Interactions & Density Focus chain C [auth A] Focus chain G [auth B]
GOL Query on GOL Download Ideal Coordinates CCD File SDF format, chain J [auth B] SDF format, chain E [auth A] MOL2 format, chain J [auth B] MOL2 format, chain E [auth A] mmCIF format, chain J [auth B] mmCIF format, chain E [auth A]	E [auth A], J [auth B]	GLYCEROL C₃ H₈ O₃ PEDCQBHIVMGVHV-UHFFFAOYSA-N		Interactions Focus chain E [auth A] Focus chain J [auth B] Interactions & Density Focus chain E [auth A] Focus chain J [auth B]
EDO Query on EDO Download Ideal Coordinates CCD File SDF format, chain I [auth B] SDF format, chain F [auth A] MOL2 format, chain I [auth B] MOL2 format, chain F [auth A] mmCIF format, chain I [auth B] mmCIF format, chain F [auth A]	F [auth A], I [auth B]	1,2-ETHANEDIOL C₂ H₆ O₂ LYCAIKOWRPUZTN-UHFFFAOYSA-N		Interactions Focus chain F [auth A] Focus chain I [auth B] Interactions & Density Focus chain F [auth A] Focus chain I [auth B]
CL Query on CL Download Ideal Coordinates CCD File SDF format, chain H [auth B] SDF format, chain D [auth A] MOL2 format, chain H [auth B] MOL2 format, chain D [auth A] mmCIF format, chain H [auth B] mmCIF format, chain D [auth A]	D [auth A], H [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M		Interactions Focus chain D [auth A] Focus chain H [auth B] Interactions & Density Focus chain D [auth A] Focus chain H [auth B]