Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 5-mer - A1B1C1D1E1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 365.73 kDa 
• Atom Count: 19,668 
• Modelled Residue Count: 2,649 
• Deposited Residue Count: 3,276 
• Unique protein chains: 5

 7EVN

The cryo-EM structure of the DDX42-SF3b complex

• PDB DOI: 10.2210/pdb7EVN/pdb
• EM Map EMD-31330: EMDB EMDataResource

• Classification: SPLICING
• Organism(s): Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): No 


• Deposited: 2021-05-21 Released: 2022-08-03 
• Deposition Author(s): Zhang, X., Zhan, X., Shi, Y.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.60 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structural Mechanisms of the RNA Helicases DDX42 and PRP5 in Pre-spliceosome Assembly

Zhang, X., Zhan, X., Yang, F., Bian, T., Lu, Y., Shi, Y.

To be published.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Splicing factor 3B subunit 5	A [auth B]	86	Homo sapiens	Mutation(s): 0  Gene Names: SF3B5, SF3B10
UniProt & NIH Common Fund Data Resources
Find proteins for Q9BWJ5 (Homo sapiens) Explore Q9BWJ5  Go to UniProtKB:  Q9BWJ5
PHAROS:  Q9BWJ5

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Splicing factor 3B subunit 1	B [auth C]	872	Homo sapiens	Mutation(s): 0  Gene Names: SF3B1, SAP155
UniProt & NIH Common Fund Data Resources
Find proteins for O75533 (Homo sapiens) Explore O75533  Go to UniProtKB:  O75533
PHAROS:  O75533

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
PHD finger-like domain-containing protein 5A	C [auth D]	110	Homo sapiens	Mutation(s): 0  Gene Names: PHF5A
UniProt & NIH Common Fund Data Resources
Find proteins for Q7RTV0 (Homo sapiens) Explore Q7RTV0  Go to UniProtKB:  Q7RTV0
PHAROS:  Q7RTV0

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Splicing factor 3B subunit 3	D [auth A]	1,250	Homo sapiens	Mutation(s): 0  Gene Names: SF3B3, KIAA0017, SAP130
UniProt & NIH Common Fund Data Resources
Find proteins for Q15393 (Homo sapiens) Explore Q15393  Go to UniProtKB:  Q15393
PHAROS:  Q15393

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
ATP-dependent RNA helicase DDX42	E	958	Homo sapiens	Mutation(s): 0  Gene Names: DDX42 EC: 3.6.4.13
UniProt & NIH Common Fund Data Resources
Find proteins for Q86XP3 (Homo sapiens) Explore Q86XP3  Go to UniProtKB:  Q86XP3
PHAROS:  Q86XP3

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN (Subject of Investigation/LOI)	F [auth D], G [auth D], H [auth D]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.60 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-08-03 
Deposition Author(s): Zhang, X., Zhan, X., Shi, Y.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	31930059

Revision History  

• Version 1.0: 2022-08-03
  Type: Initial release