1IC8

HEPATOCYTE NUCLEAR FACTOR 1A BOUND TO DNA : MODY3 GENE PRODUCT

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.312 
  • R-Value Work: 0.254 
  • R-Value Observed: 0.260 

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This is version 1.4 of the entry. See complete history. 


Literature

Diabetes mutations delineate an atypical POU domains in HNF1-Alpha

Chi, Y.-I., Frantz, J.D., Oh, B.-C., Hansen, L., Dhe-Paganon, S., Shoelson, S.E.

(2002) Mol Cell 10: 1129-1137

  • DOI: 10.1016/s1097-2765(02)00704-9
  • Primary Citation of Related Structures:  
    1IC8

  • PubMed Abstract: 

    • Mutations in Hnf-1alpha are the most common Mendelian cause of diabetes mellitus. To elucidate the molecular function of a mutational hotspot, we cocrystallized human HNF-1alpha 83-279 with a high-affinity promoter and solved the structure of the complex ...

    Mutations in Hnf-1alpha are the most common Mendelian cause of diabetes mellitus. To elucidate the molecular function of a mutational hotspot, we cocrystallized human HNF-1alpha 83-279 with a high-affinity promoter and solved the structure of the complex. Two identical protein molecules are bound to the promoter. Each contains a homeodomain and a second domain structurally similar to POU-specific domains that was not predicted on the basis of amino acid sequence. Atypical elements in both domains create a stable interface that further distinguishes HNF-1alpha from other flexible POU-homeodomain proteins. The numerous diabetes-causing mutations in HNF-1alpha thus identified a previously unrecognized POU domain which was used as a search model to identify additional POU domain proteins in sequence databases.

    Organizational Affiliation: 

    Joslin Diabetes Center, Department of Medicine, Harvard Medical School, Boston, MA 02215, USA.



Macromolecules

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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
HEPATOCYTE NUCLEAR FACTOR 1-ALPHAC [auth A], D [auth B]194Homo sapiensMutation(s): 0 
Gene Names: HNF1A, TCF1
UniProt & NIH Common Fund Data Resources
Find proteins for P20823 (Homo sapiens)
Explore P20823 
Go to UniProtKB:  P20823
PHAROS:  P20823
GTEx:  ENSG00000135100
Protein Feature View
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  • Reference Sequence
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Entity ID: 1
MoleculeChainsLengthOrganismImage
5'-D(*CP*TP*TP*GP*GP*TP*TP*AP*AP*TP*AP*AP*TP*TP*CP*AP*CP*CP*AP*GP*A)-3'A [auth E]21N/A
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsLengthOrganismImage
5'-D(*TP*CP*TP*GP*GP*TP*GP*AP*AP*TP*TP*AP*TP*TP*AP*AP*CP*CP*AP*AP*G)-3'B [auth F]21N/A
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.312 
  • R-Value Work: 0.254 
  • R-Value Observed: 0.260 
  • Space Group: P 41
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 50.389α = 90
b = 50.389β = 90
c = 207.272γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
SHARPphasing
CNSrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-11-27
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-02-01
    Changes: Structure summary
  • Version 1.4: 2018-01-24
    Changes: Database references, Structure summary