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PDBsum entry 7bpy

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protein ligands Protein-protein interface(s) links
Transcription PDB id
7bpy

 

 

 

 

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JSmol PyMol  
Contents
Protein chains
271 a.a.
14 a.a.
11 a.a.
Ligands
E0O ×4
Waters ×103
PDB id:
7bpy
Name: Transcription
Title: X-ray structure of human pparalpha ligand binding domain-clofibric acid-src1 coactivator peptide co-crystals obtained by delipidation and co-crystallization
Structure: Peroxisome proliferator-activated receptor alpha. Chain: a, c. Engineered: yes. 15-meric peptide from nuclear receptor coactivator 1. Chain: b, d. Engineered: yes
Source: Homo sapiens. Organism_taxid: 9606. Expressed in: escherichia coli. Expression_system_taxid: 562. Synthetic: yes. Human. Organism_taxid: 9606
Resolution:
2.09Å     R-factor:   0.194     R-free:   0.216
Authors: S.Kamata,R.Ishikawa,M.Akahane,T.Oyama,I.Ishii
Key ref: S.Kamata et al. (2020). PPARα Ligand-Binding Domain Structures with Endogenous Fatty Acids and Fibrates. iScience, 23, 101727. PubMed id: 33205029 DOI: 10.1016/j.isci.2020.101727
Date:
23-Mar-20     Release date:   11-Nov-20    
PROCHECK
Go to PROCHECK summary
 Headers
 References

Protein chains
Pfam   ArchSchema ?
Q07869  (PPARA_HUMAN) -  Peroxisome proliferator-activated receptor alpha from Homo sapiens
Seq:
Struc:
468 a.a.
271 a.a.*
Protein chain
Pfam   ArchSchema ?
Q15788  (NCOA1_HUMAN) -  Nuclear receptor coactivator 1 from Homo sapiens
Seq:
Struc:
 
Seq:
Struc:
 
Seq:
Struc:
1441 a.a.
14 a.a.
Protein chain
Pfam   ArchSchema ?
Q15788  (NCOA1_HUMAN) -  Nuclear receptor coactivator 1 from Homo sapiens
Seq:
Struc:
 
Seq:
Struc:
 
Seq:
Struc:
1441 a.a.
11 a.a.
Key:    PfamA domain  Secondary structure
* PDB and UniProt seqs differ at 2 residue positions (black crosses)

 Enzyme reactions 
   Enzyme class: Chains B, D: E.C.2.3.1.48  - histone acetyltransferase.
[IntEnz]   [ExPASy]   [KEGG]   [BRENDA]
      Reaction: L-lysyl-[protein] + acetyl-CoA = N6-acetyl-L-lysyl-[protein] + CoA + H+
L-lysyl-[protein]
+ acetyl-CoA
= N(6)-acetyl-L-lysyl-[protein]
+ CoA
+ H(+)
Molecule diagrams generated from .mol files obtained from the KEGG ftp site

 

 
    Added reference    
 
 
DOI no: 10.1016/j.isci.2020.101727 iScience 23:101727 (2020)
PubMed id: 33205029  
 
 
PPARα Ligand-Binding Domain Structures with Endogenous Fatty Acids and Fibrates.
S.Kamata, T.Oyama, K.Saito, A.Honda, Y.Yamamoto, K.Suda, R.Ishikawa, T.Itoh, Y.Watanabe, T.Shibata, K.Uchida, M.Suematsu, I.Ishii.
 
  ABSTRACT  
 
Most triacylglycerol-lowering fibrates have been developed in the 1960s-1980s before their molecular target, peroxisome proliferator-activated receptor alpha (PPARα), was identified. Twenty-one ligand-bound PPARα structures have been deposited in the Protein Data Bank since 2001; however, binding modes of fibrates and physiological ligands remain unknown. Here we show thirty-four X-ray crystallographic structures of the PPARα ligand-binding domain, which are composed of a "Center" and four "Arm" regions, in complexes with five endogenous fatty acids, six fibrates in clinical use, and six synthetic PPARα agonists. High-resolution structural analyses, in combination with coactivator recruitment and thermostability assays, demonstrate that stearic and palmitic acids are presumably physiological ligands; coordination to Arm III is important for high PPARα potency/selectivity of pemafibrate and GW7647; and agonistic activities of four fibrates are enhanced by the partial agonist GW9662. These results renew our understanding of PPARα ligand recognition and contribute to the molecular design of next-generation PPAR-targeted drugs.
 

 

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