5ZYQ

The Structure of Human PAF1/CTR9 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.53 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.204 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Paf1 and Ctr9 subcomplex formation is essential for Paf1 complex assembly and functional regulation.

Xie, Y.Zheng, M.Chu, X.Chen, Y.Xu, H.Wang, J.Zhou, H.Long, J.

(2018) Nat Commun 9: 3795-3795

  • DOI: 10.1038/s41467-018-06237-7
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The evolutionarily conserved multifunctional polymerase-associated factor 1 (Paf1) complex (Paf1C), which is composed of at least five subunits (Paf1, Leo1, Ctr9, Cdc73, and Rtf1), plays vital roles in gene regulation and has connections to developme ...

    The evolutionarily conserved multifunctional polymerase-associated factor 1 (Paf1) complex (Paf1C), which is composed of at least five subunits (Paf1, Leo1, Ctr9, Cdc73, and Rtf1), plays vital roles in gene regulation and has connections to development and human diseases. Here, we report two structures of each of the human and yeast Ctr9/Paf1 subcomplexes, which assemble into heterodimers with very similar conformations, revealing an interface between the tetratricopeptide repeat module in Ctr9 and Paf1. The structure of the Ctr9/Paf1 subcomplex may provide mechanistic explanations for disease-associated mutations in human PAF1 and CTR9. Our study reveals that the formation of the Ctr9/Paf1 heterodimer is required for the assembly of yeast Paf1C, and is essential for yeast viability. In addition, disruption of the interaction between Paf1 and Ctr9 greatly affects the level of histone H3 methylation in vivo. Collectively, our results shed light on Paf1C assembly and functional regulation.


    Organizational Affiliation

    State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Science, and College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin, 300071, China. jflong@nankai.edu.cn.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RNA polymerase-associated protein CTR9 homolog,RNA polymerase II-associated factor 1 homologA320Homo sapiensMutation(s): 0 
Gene Names: CTR9KIAA0155SH2BP1
Find proteins for Q6PD62 (Homo sapiens)
Explore Q6PD62 
Go to UniProtKB:  Q6PD62
NIH Common Fund Data Resources
PHAROS  Q6PD62
Find proteins for Q8N7H5 (Homo sapiens)
Explore Q8N7H5 
Go to UniProtKB:  Q8N7H5
NIH Common Fund Data Resources
PHAROS  Q8N7H5
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.53 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.204 
  • Space Group: P 31 1 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 82.415α = 90
b = 82.415β = 90
c = 145.66γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Basic Research Program of China(973 Program)China2014CB910201
National Natural Science Foundation of ChinaChina31470755
National Natural Science Foundation of ChinaChina31670758

Revision History 

  • Version 1.0: 2018-09-26
    Type: Initial release
  • Version 1.1: 2019-05-22
    Changes: Data collection, Database references