9UIQ | pdb_00009uiq

Structure of CTF18-PCNA with ATP

PDB DOI: https://doi.org/10.2210/pdb9UIQ/pdb
EM Map EMD-64201: EMDB EMDataResource

Classification: DNA BINDING PROTEIN
Organism(s): Homo sapiens
Expression System: Spodoptera frugiperda
Mutation(s): No

Deposited: 2025-04-16 Released: 2026-02-25
Deposition Author(s): Briola, G.R., Tehseen, M., Al-Amodi, A., Nguyen, P.Q., Savva, C.G., Hamdan, S.M., De Biasio, A.
Funding Organization(s): Other government

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 3.20 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

Starting Model: experimental
View more details

wwPDB Validation 3D Report Full Report

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

Literature

Structure of the human CTF18 clamp loader bound to PCNA with ATP

Briola, G., Tehseen, M., Al-Amodi, A., Nguyen, P.Q., Savva, C.G., Hamdan, S.M., De Biasio, A.

To be published.

Macromolecule Content

Total Structure Weight: 311.74 kDa
Atom Count: 19,778
Modeled Residue Count: 2,504
Deposited Residue Count: 2,772
Unique protein chains: 6

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Chromosome transmission fidelity protein 18 homolog	A	692	Homo sapiens	Mutation(s): 0 Gene Names: CHTF18, C16orf41, CTF18
UniProt & NIH Common Fund Data Resources
Find proteins for Q8WVB6 (Homo sapiens) Explore Q8WVB6 Go to UniProtKB: Q8WVB6
PHAROS: Q8WVB6 GTEx: ENSG00000127586
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	Q8WVB6
Sequence Annotations Expand
Reference Sequence

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Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Replication factor C subunit 2	B	316	Homo sapiens	Mutation(s): 0 Gene Names: RFC2
UniProt & NIH Common Fund Data Resources
Find proteins for P35250 (Homo sapiens) Explore P35250 Go to UniProtKB: P35250
PHAROS: P35250 GTEx: ENSG00000049541
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P35250
Sequence Annotations Expand
Reference Sequence

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(by identity cutoff) | 3D Structure

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Replication factor C subunit 5	C	320	Homo sapiens	Mutation(s): 0 Gene Names: RFC5
UniProt & NIH Common Fund Data Resources
Find proteins for P40937 (Homo sapiens) Explore P40937 Go to UniProtKB: P40937
PHAROS: P40937 GTEx: ENSG00000111445
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P40937
Sequence Annotations Expand
Reference Sequence

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Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Replication factor C subunit 4	D	324	Homo sapiens	Mutation(s): 0 Gene Names: RFC4
UniProt & NIH Common Fund Data Resources
Find proteins for P35249 (Homo sapiens) Explore P35249 Go to UniProtKB: P35249
PHAROS: P35249 GTEx: ENSG00000163918
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P35249
Sequence Annotations Expand
Reference Sequence

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(by identity cutoff) | 3D Structure

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
Replication factor C subunit 3	E	349	Homo sapiens	Mutation(s): 0 Gene Names: RFC3
UniProt & NIH Common Fund Data Resources
Find proteins for P40938 (Homo sapiens) Explore P40938 Go to UniProtKB: P40938
PHAROS: P40938 GTEx: ENSG00000133119
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P40938
Sequence Annotations Expand
Reference Sequence

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(by identity cutoff) | 3D Structure

Entity ID: 6
Molecule	Chains	Sequence Length	Organism	Details	Image
Proliferating cell nuclear antigen	F, G, H	257	Homo sapiens	Mutation(s): 0 Gene Names: PCNA
UniProt & NIH Common Fund Data Resources
Find proteins for P12004 (Homo sapiens) Explore P12004 Go to UniProtKB: P12004
PHAROS: P12004 GTEx: ENSG00000132646
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P12004
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
ATP (Subject of Investigation/LOI) Query on ATP Download Ideal Coordinates CCD File SDF format, chain M [auth C] SDF format, chain K [auth B] SDF format, chain I [auth A] MOL2 format, chain M [auth C] MOL2 format, chain K [auth B] MOL2 format, chain I [auth A] mmCIF format, chain M [auth C] mmCIF format, chain K [auth B] mmCIF format, chain I [auth A]	I [auth A], K [auth B], M [auth C]	ADENOSINE-5'-TRIPHOSPHATE C₁₀ H₁₆ N₅ O₁₃ P₃ ZKHQWZAMYRWXGA-KQYNXXCUSA-N		Interactions Focus chain I [auth A] Focus chain K [auth B] Focus chain M [auth C] Interactions & Density Focus chain I [auth A] Focus chain K [auth B] Focus chain M [auth C]
ADP (Subject of Investigation/LOI) Query on ADP Download Ideal Coordinates CCD File SDF format, chain N [auth E] MOL2 format, chain N [auth E] mmCIF format, chain N [auth E]	N [auth E]	ADENOSINE-5'-DIPHOSPHATE C₁₀ H₁₅ N₅ O₁₀ P₂ XTWYTFMLZFPYCI-KQYNXXCUSA-N		Interactions Focus chain N [auth E] Interactions & Density Focus chain N [auth E]
MG (Subject of Investigation/LOI) Query on MG Download Ideal Coordinates CCD File SDF format, chain L [auth C] SDF format, chain J [auth B] MOL2 format, chain L [auth C] MOL2 format, chain J [auth B] mmCIF format, chain L [auth C] mmCIF format, chain J [auth B]	J [auth B], L [auth C]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions Focus chain J [auth B] Focus chain L [auth C] Interactions & Density Focus chain J [auth B] Focus chain L [auth C]