Biological Assembly 1  

 3D View: Structure | Electron Density

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 63688.69 
• Atom Count: 3729 
• Residue Count: 482 
• Unique protein chains: 1
• Unique nucleic acid chains: 2

2H8R

Hepatocyte Nuclear Factor 1b bound to DNA: MODY5 Gene Product

• DOI: 10.2210/pdb2H8R/pdb
• NDB: PD0820

• Classification: TRANSCRIPTION ACTIVATOR/DNA
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)


• Deposited: 2006-06-07 Released: 2007-06-19 
• Deposition Author(s): Lu, P., Rha, G.B., Chi, Y.I.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.2 Å
• R-Value Free: 0.290 
• R-Value Work: 0.223 

Literature

Structural basis of disease-causing mutations in hepatocyte nuclear factor 1beta.

Lu, P., Rha, G.B., Chi, Y.I.

(2007) Biochemistry 46: 12071-12080

• PubMed: 17924661 
• DOI: 10.1021/bi7010527


• PubMed Abstract: 
  

HNF1beta is an atypical POU transcription factor that participates in a hierarchical network of transcription factors controlling the development and proper function of vital organs such as liver, pancreas, and kidney. Many inheritable mutations on HNF1beta are the monogenic causes of diabetes and several kidney diseases. To elucidate the molecular mechanism of its function and the structural basis of mutations, we have determined the crystal structure of human HNF1beta DNA binding domain in complex with a high-affinity promoter. Disease-causing mutations have been mapped to our structure, and their predicted effects have been tested by a set of biochemical/ functional studies. These findings together with earlier findings with a homologous protein HNF1alpha, help us to understand the structural basis of promoter recognition by these atypical POU transcription factors and the site-specific functional disruption by disease-causing mutations.

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Related Citations: 

• Crystallization of hepatocyte nuclear factor 1beta in complex with DNA.
  Lu, P.,Li, Y.,Gorman, A.,Chi, Y.I.
  (2006) Acta Crystallogr.,Sect.F 62: 525




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Organizational Affiliation: 

Department of Molecular and Cellular Biochemistry, Center for Structural Biology, University of Kentucky, Lexington, Kentucky 40536, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details
Hepatocyte nuclear factor 1-beta	A, B	221	Homo sapiens	Mutation(s): 0  Gene Names: HNF1B (TCF2)
Find proteins for P35680 (Homo sapiens) Go to Gene View: HNF1B Go to UniProtKB:  P35680

Entity ID: 1
Molecule	Chains	Length	Organism
5'-D(*CP*TP*TP*GP*GP*TP*TP*AP*AP*TP*AP*AP*TP*TP*CP*AP*CP*CP*AP*G)-3'	E	20	N/A

Entity ID: 2
Molecule	Chains	Length	Organism
5'-D(*GP*CP*TP*GP*GP*TP*GP*AP*AP*TP*TP*AP*TP*TP*AP*AP*CP*CP*AP*A)-3'	F	20	N/A

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.2 Å
• R-Value Free: 0.290 
• R-Value Work: 0.223 
• Space Group: H 3

Unit Cell:

Length (Å)	Angle (°)
a = 174.689	α = 90.00
b = 174.689	β = 90.00
c = 72.434	γ = 120.00

Software Package:

Software Name	Purpose
SERGUI	data collection
HKL-2000	data reduction
MOLREP	phasing
REFMAC	refinement
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2006-06-07 
• Released Date: 2007-06-19 
• Deposition Author(s): Lu, P., Rha, G.B., Chi, Y.I.

Revision History 

• Version 1.0: 2007-06-19
  Type: Initial release
• Version 1.1: 2008-02-04
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance