Biological Assembly 1  

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 33.25 kDa 
• Atom Count: 1,779 
• Modelled Residue Count: 178 
• Deposited Residue Count: 240 
• Unique protein chains: 1
• Unique nucleic acid chains: 2

 4TNT

Structure of the human mineralocorticoid receptor in complex with DNA

• PDB DOI: 10.2210/pdb4TNT/pdb
• NDB: 4TNT

• Classification: DNA Binding Protein/DNA
• Organism(s): Homo sapiens, synthetic construct
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2014-06-04 Released: 2014-09-17 
• Deposition Author(s): Hudson, W.H., Ortlund, E.A.
• Funding Organization(s): National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK), American Heart Association

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.39 Å
• R-Value Free: 0.258 
• R-Value Work: 0.209 
• R-Value Observed: 0.214 

Literature

Crystal structure of the mineralocorticoid receptor DNA binding domain in complex with DNA.

Hudson, W.H., Youn, C., Ortlund, E.A.

(2014) PLoS One 9: e107000-e107000

• PubMed: 25188500 
• DOI: 10.1371/journal.pone.0107000
• Primary Citation of Related Structures:  
  4TNT


• PubMed Abstract: 
  

The steroid hormone receptors regulate important physiological functions such as reproduction, metabolism, immunity, and electrolyte balance. Mutations within steroid receptors result in endocrine disorders and can often drive cancer formation and progression. Despite the conserved three-dimensional structure shared among members of the steroid receptor family and their overlapping DNA binding preference, activation of individual steroid receptors drive unique effects on gene expression. Here, we present the first structure of the human mineralocorticoid receptor DNA binding domain, in complex with a canonical DNA response element. The overall structure is similar to the glucocorticoid receptor DNA binding domain, but small changes in the mode of DNA binding and lever arm conformation may begin to explain the differential effects on gene regulation by the mineralocorticoid and glucocorticoid receptors. In addition, we explore the structural effects of mineralocorticoid receptor DNA binding domain mutations found in type I pseudohypoaldosteronism and multiple types of cancer.

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Organizational Affiliation: 

Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia, United States of America; Discovery and Developmental Therapeutics, Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, United States of America.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Mineralocorticoid receptor	A, B	103	Homo sapiens	Mutation(s): 0  Gene Names: NR3C2, MCR, MLR
UniProt & NIH Common Fund Data Resources
Find proteins for P08235 (Homo sapiens) Explore P08235  Go to UniProtKB:  P08235
PHAROS:  P08235

Entity ID: 2
Molecule	Chains	Length	Organism	Image
DNA (5'-D(*CP*AP*GP*AP*AP*CP*AP*CP*TP*CP*TP*GP*TP*TP*CP*TP*G)-3')	C	17	synthetic construct

Entity ID: 3
Molecule	Chains	Length	Organism	Image
DNA (5'-D(*CP*AP*GP*AP*AP*CP*AP*GP*AP*GP*TP*GP*TP*TP*CP*TP*G)-3')	D	17	synthetic construct

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN	E [auth A], F [auth A], G [auth B], H [auth B]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.39 Å
• R-Value Free: 0.258 
• R-Value Work: 0.209 
• R-Value Observed: 0.214 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 74.09	α = 90
b = 115.136	β = 90
c = 81.393	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data scaling
SERGUI	data collection

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2014-09-17 
Deposition Author(s): Hudson, W.H., Ortlund, E.A.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK)	United States	R01DK095750
American Heart Association	United States	13PRE16920012

Revision History  

• Version 1.0: 2014-09-17
  Type: Initial release
  
• Version 1.1: 2014-12-03
  Changes: Database references
• Version 1.2: 2017-09-06
  Changes: Author supporting evidence, Derived calculations, Source and taxonomy
• Version 1.3: 2017-11-22
  Changes: Refinement description
• Version 1.4: 2019-12-25
  Changes: Author supporting evidence