23FE | pdb_000023fe

Cryo-EM structure of human ATR-ATRIP complex with ATPgammaS, Chk1 and ETAA1

PDB DOI: https://doi.org/10.2210/pdb23FE/pdb
EM Map EMD-68921: EMDB EMDataResource

Classification: NUCLEAR PROTEIN
Organism(s): Homo sapiens
Expression System: Homo sapiens, Spodoptera frugiperda
Mutation(s): No

Deposited: 2026-02-04 Released: 2026-08-26
Deposition Author(s): Wang, M., Wang, L., Cheng, J., Qiao, S.
Funding Organization(s): National Natural Science Foundation of China (NSFC), Ministry of Science and Technology (MoST, China)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 2.90 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

wwPDB Validation 3D Report Full Report

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

Literature

Cryo-EM structure of human ATR-ATRIP complex with ATPgammaS, Chk1 and ETAA1

Wang, M., Wang, L., Cheng, J., Qiao, S.

To be published.

Macromolecule Content

Total Structure Weight: 836.65 kDa
Atom Count: 46,261
Modeled Residue Count: 5,826
Deposited Residue Count: 7,398
Unique protein chains: 4

Macromolecules

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| 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Serine/threonine-protein kinase ATR	A, B	2,644	Homo sapiens	Mutation(s): 0 Gene Names: ATR, FRP1 EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for Q13535 (Homo sapiens) Explore Q13535 Go to UniProtKB: Q13535
PHAROS: Q13535 GTEx: ENSG00000175054
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q13535
Sequence Annotations Expand
Reference Sequence

Find similar proteins by: Sequence | 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Serine/threonine-protein kinase Chk1	C [auth E], D [auth F]	14	Homo sapiens	Mutation(s): 0 EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for O14757 (Homo sapiens) Explore O14757 Go to UniProtKB: O14757
PHAROS: O14757 GTEx: ENSG00000149554
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	O14757
Sequence Annotations Expand
Reference Sequence

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| 3D Structure

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Ewing's tumor-associated antigen 1	E [auth G], F [auth H]	250	Homo sapiens	Mutation(s): 0 Gene Names: ETAA1, ETAA16
UniProt & NIH Common Fund Data Resources
Find proteins for Q9NY74 (Homo sapiens) Explore Q9NY74 Go to UniProtKB: Q9NY74
PHAROS: Q9NY74 GTEx: ENSG00000143971
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q9NY74
Sequence Annotations Expand
Reference Sequence

Find similar proteins by:

| 3D Structure

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
ATR-interacting protein	G [auth C], H [auth D]	791	Homo sapiens	Mutation(s): 0 Gene Names: ATRIP, AGS1
UniProt & NIH Common Fund Data Resources
Find proteins for Q8WXE1 (Homo sapiens) Explore Q8WXE1 Go to UniProtKB: Q8WXE1
PHAROS: Q8WXE1 GTEx: ENSG00000164053
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q8WXE1
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
AGS Query on AGS Download:Ideal Coordinates CCD File SDF format, chain I [auth A] SDF format, chain M [auth B] MOL2 format, chain I [auth A] MOL2 format, chain M [auth B] mmCIF format, chain I [auth A] mmCIF format, chain M [auth B]	I [auth A], M [auth B]	PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER C₁₀ H₁₆ N₅ O₁₂ P₃ S NLTUCYMLOPLUHL-KQYNXXCUSA-N		Interactions Focus chain I [auth A] Focus chain M [auth B] Interactions & Density Focus chain I [auth A] Focus chain M [auth B]
ZN Query on ZN Download:Ideal Coordinates CCD File SDF format, chain L [auth A] SDF format, chain P [auth B] SDF format, chain Q [auth C] SDF format, chain R [auth D] MOL2 format, chain L [auth A] MOL2 format, chain P [auth B] MOL2 format, chain Q [auth C] MOL2 format, chain R [auth D] mmCIF format, chain L [auth A] mmCIF format, chain P [auth B] mmCIF format, chain Q [auth C] mmCIF format, chain R [auth D]	L [auth A], P [auth B], Q [auth C], R [auth D]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N		Interactions Focus chain L [auth A] Focus chain P [auth B] Focus chain Q [auth C] Focus chain R [auth D] Interactions & Density Focus chain L [auth A] Focus chain P [auth B] Focus chain Q [auth C] Focus chain R [auth D]
MG Query on MG Download:Ideal Coordinates CCD File SDF format, chain J [auth A] SDF format, chain K [auth A] SDF format, chain N [auth B] SDF format, chain O [auth B] MOL2 format, chain J [auth A] MOL2 format, chain K [auth A] MOL2 format, chain N [auth B] MOL2 format, chain O [auth B] mmCIF format, chain J [auth A] mmCIF format, chain K [auth A] mmCIF format, chain N [auth B] mmCIF format, chain O [auth B]	J [auth A], K [auth A], N [auth B], O [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions Focus chain J [auth A] Focus chain K [auth A] Focus chain N [auth B] Focus chain O [auth B] Interactions & Density Focus chain J [auth A] Focus chain K [auth A] Focus chain N [auth B] Focus chain O [auth B]