6U66

Structure of the trimeric globular domain of Adiponectin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 0.99 Å
  • R-Value Free: 0.190 
  • R-Value Work: 0.165 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Mapping and engineering the interaction between adiponectin and T-cadherin.

Pascolutti, R.Erlandson, S.C.Burri, D.J.Zheng, S.Kruse, A.C.

(2020) J.Biol.Chem. --: --

  • DOI: 10.1074/jbc.RA119.010970
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Adiponectin is a highly abundant protein hormone secreted by adipose tissue. It elicits diverse biological responses, including anti-diabetic, anti-inflammatory, anti-tumor and anti-atherosclerotic effects. Adiponectin consists of a globular domain a ...

    Adiponectin is a highly abundant protein hormone secreted by adipose tissue. It elicits diverse biological responses, including anti-diabetic, anti-inflammatory, anti-tumor and anti-atherosclerotic effects. Adiponectin consists of a globular domain and a collagen-like domain, and it occurs in three major oligomeric forms that self-assemble: trimers, hexamers, and high molecular weight oligomers. Adiponectin has been reported to bind to two seven-transmembrane domains receptors, AdipoR1 and AdipoR2, as well as the protein T-cadherin, which is highly expressed in the cardiovascular system and binds only the high molecular weight form of adiponectin. The molecular mechanisms underlying this specificity remain unclear. Here, we used a combination of X-ray crystallography and protein engineering to define the details of adiponectin's interaction with T-cadherin. We found that T-cadherin binds to the globular domain of adiponectin, relying on structural stabilization of this domain by bound metal ions. Moreover, we show that the adiponectin globular domain can be engineered to enhance its binding affinity for T-cadherin. These results help to define the molecular basis for the interaction between adiponectin and T-cadherin, and our engineered globular domain variants may be useful tools for further investigating adiponectin's functions.


    Organizational Affiliation

    Harvard Medical School, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Adiponectin
A, B, C
142Homo sapiensMutation(s): 0 
Gene Names: ADIPOQ (ACDC, ACRP30, APM1, GBP28)
Find proteins for Q15848 (Homo sapiens)
Go to Gene View: ADIPOQ
Go to UniProtKB:  Q15848
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download SDF File 
Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
CA
Query on CA

Download SDF File 
Download CCD File 
A, B, C
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 0.99 Å
  • R-Value Free: 0.190 
  • R-Value Work: 0.165 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 47.923α = 116.83
b = 49.635β = 100.89
c = 50.306γ = 104.92
Software Package:
Software NamePurpose
XDSdata reduction
PHASERphasing
PDB_EXTRACTdata extraction
PHENIXrefinement
XSCALEdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)United StatesDP5OD021345

Revision History 

  • Version 1.0: 2020-01-22
    Type: Initial release