9XYC | pdb_00009xyc

Pol II-DSIF-SPT6-PAF1c-TFIIS-IWS1-ELOF1-LEDGF-nucleosome LEDGF+nucleosome map Q

PDB DOI: https://doi.org/10.2210/pdb9XYC/pdb
NAKB: 9XYC
EM Map EMD-72325: EMDB EMDataResource

Classification: TRANSCRIPTION/DNA
Organism(s): synthetic construct, Xenopus laevis, Homo sapiens
Expression System: Escherichia coli, Trichoplusia ni
Mutation(s): Yes

Deposited: 2025-08-25 Released: 2026-03-18
Deposition Author(s): Syau, D., Farnung, L.
Funding Organization(s): Richard and Susan Smith Family Foundation, Damon Runyon Cancer Research Foundation, National Institutes of Health/National Institute of Environmental Health Sciences (NIH/NIEHS)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 3.50 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

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

Literature

Structure and function of IWS1 in transcription elongation

Syau, D., Farnung, L.

To be published.

Macromolecule Content

Total Structure Weight: 256.08 kDa
Atom Count: 12,505
Modeled Residue Count: 1,131
Deposited Residue Count: 1,800
Unique protein chains: 5
Unique nucleic acid chains: 2

Macromolecules

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| 3D Structure

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Histone H3.2	C [auth a], G [auth e]	136	Xenopus laevis	Mutation(s): 1
UniProt
Find proteins for P84233 (Xenopus laevis) Explore P84233 Go to UniProtKB: P84233
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P84233
Sequence Annotations Expand
Reference Sequence

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| 3D Structure

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Histone H4	D [auth b], H [auth f]	103	Xenopus laevis	Mutation(s): 0
UniProt
Find proteins for P62799 (Xenopus laevis) Explore P62799 Go to UniProtKB: P62799
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P62799
Sequence Annotations Expand
Reference Sequence

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| 3D Structure

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
Histone H2A type 1	E [auth c], I [auth g]	130	Xenopus laevis	Mutation(s): 1
UniProt
Find proteins for P06897 (Xenopus laevis) Explore P06897 Go to UniProtKB: P06897
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P06897
Sequence Annotations Expand
Reference Sequence

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| 3D Structure

Entity ID: 6
Molecule	Chains	Sequence Length	Organism	Details	Image
Histone H2B 1.1	F [auth d], J [auth h]	126	Xenopus laevis	Mutation(s): 1
UniProt
Find proteins for P02281 (Xenopus laevis) Explore P02281 Go to UniProtKB: P02281
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P02281
Sequence Annotations Expand
Reference Sequence

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| 3D Structure

Entity ID: 7
Molecule	Chains	Sequence Length	Organism	Details	Image
PC4 and SFRS1-interacting protein	K [auth l]	532	Homo sapiens	Mutation(s): 0 Gene Names: PSIP1, DFS70, LEDGF, PSIP2
UniProt & NIH Common Fund Data Resources
Find proteins for O75475 (Homo sapiens) Explore O75475 Go to UniProtKB: O75475
PHAROS: O75475 GTEx: ENSG00000164985
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	O75475
Sequence Annotations Expand
Reference Sequence

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(by identity cutoff)

Molecule	Chains	Length	Organism
Entity ID: 1
DNA (139-MER)	A [auth N]	139	synthetic construct
Sequence Annotations Expand
Reference Sequence

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(by identity cutoff)

Molecule	Chains	Length	Organism
Entity ID: 2
DNA (139-MER)	B [auth T]	139	synthetic construct
Sequence Annotations Expand
Reference Sequence

Small Molecules

Modified Residues 1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
ML3 Query on ML3	C [auth a], G [auth e]	L-PEPTIDE LINKING	C₈ H₁₉ N₂ O₂ S		LYS

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 3.50 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC	4.7.0
MODEL REFINEMENT	PHENIX	1.20.1-4487

Structure Validation

View Full Validation Report

View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-03-18

Deposition Author(s):

Syau, D.

Farnung, L.

Funding Organization	Location	Grant Number
Richard and Susan Smith Family Foundation	United States	--
Damon Runyon Cancer Research Foundation	United States	--
National Institutes of Health/National Institute of Environmental Health Sciences (NIH/NIEHS)	United States	DP2-ES036404