1XU9

Crystal Structure of the Interface Closed Conformation of 11b-hydroxysteroid dehydrogenase isozyme 1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.181 
  • R-Value Work: 0.157 
  • R-Value Observed: 0.158 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Conformational Flexibility in Crystal Structures of Human 11beta-hydroxysteroid dehydrogenase type I provide insights into glucocorticoid interconversion and enzyme regulation.

Hosfield, D.J.Wu, Y.Skene, R.J.Hilger, M.Jennings, A.Snell, G.P.Aertgeerts, K.

(2005) J Biol Chem 280: 4639-4648

  • DOI: 10.1074/jbc.M411104200
  • Primary Citation of Related Structures:  
    1XU9, 1XU7

  • PubMed Abstract: 
  • Human 11beta-hydroxysteroid dehydrogenase type I (11beta-HSD1) is an ER-localized membrane protein that catalyzes the interconversion of cortisone and cortisol. In adipose tissue, excessive cortisol production through 11beta-HSD1 activity has been im ...

    Human 11beta-hydroxysteroid dehydrogenase type I (11beta-HSD1) is an ER-localized membrane protein that catalyzes the interconversion of cortisone and cortisol. In adipose tissue, excessive cortisol production through 11beta-HSD1 activity has been implicated in the pathogenesis of type II diabetes and obesity. We report here biophysical, kinetic, mutagenesis, and structural data on two ternary complexes of 11beta-HSD1. The combined results reveal flexible active site interactions relevant to glucocorticoid recognition and demonstrate how four 11beta-HSD1 C termini converge to form an as yet uncharacterized tetramerization motif. A C-terminal Pro-Cys motif is localized at the center of the tetramer and forms reversible enzyme disulfides that alter enzyme activity. Conformational flexibility at the tetramerization interface is coupled to structural changes at the enzyme active site suggesting how the central Pro-Cys motif may regulate enzyme activity. Together, the crystallographic and biophysical data provide a structural framework for understanding 11beta-HSD1 activities and will ultimately facilitate the development of specific inhibitors.


    Organizational Affiliation

    Syrrx Inc., San Diego, California 92121, USA. david.hosfield@syrrx.com



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Corticosteroid 11-beta-dehydrogenase, isozyme 1ABCD286Homo sapiensMutation(s): 1 
Gene Names: HSD11B1HSD11HSD11LSDR26C1
EC: 1.1.1.146
Find proteins for P28845 (Homo sapiens)
Explore P28845 
Go to UniProtKB:  P28845
NIH Common Fund Data Resources
PHAROS  P28845
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NDP
Query on NDP

Download CCD File 
A, B, C, D
NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
C21 H30 N7 O17 P3
ACFIXJIJDZMPPO-NNYOXOHSSA-N
 Ligand Interaction
CPS
Query on CPS

Download CCD File 
A, B, C, D
3-[(3-CHOLAMIDOPROPYL)DIMETHYLAMMONIO]-1-PROPANESULFONATE
C32 H58 N2 O7 S
UMCMPZBLKLEWAF-BCTGSCMUSA-N
 Ligand Interaction
MES
Query on MES

Download CCD File 
A
2-(N-MORPHOLINO)-ETHANESULFONIC ACID
C6 H13 N O4 S
SXGZJKUKBWWHRA-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.181 
  • R-Value Work: 0.157 
  • R-Value Observed: 0.158 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 57.428α = 90
b = 152.673β = 93.77
c = 73.918γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
CCP4data scaling
SHARPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-11-02
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance