1XSE

Crystal Structure of Guinea Pig 11beta-Hydroxysteroid Dehydrogenase Type 1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.192 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

The crystal structure of guinea pig 11beta-hydroxysteroid dehydrogenase type 1 provides a model for enzyme-lipid bilayer interactions

Ogg, D.Elleby, B.Norstrom, C.Stefansson, K.Abrahmsen, L.Oppermann, U.Svensson, S.

(2005) J.Biol.Chem. 280: 3789-3794

  • DOI: 10.1074/jbc.M412463200

  • PubMed Abstract: 
  • The metabolic reduction of 11-keto groups in glucocorticoid steroids such as cortisone leads to the nuclear receptor ligand cortisol. This conversion is an example of pre-receptor regulation and constitutes a novel pharmacological target for the trea ...

    The metabolic reduction of 11-keto groups in glucocorticoid steroids such as cortisone leads to the nuclear receptor ligand cortisol. This conversion is an example of pre-receptor regulation and constitutes a novel pharmacological target for the treatment of metabolic disorders such as insulin resistance and possibly other derangements observed in the metabolic syndrome, such as hyperlipidemia, hypertension, and lowered insulin secretion. This reaction is carried out by the NADPH-dependent type 1 11beta-hydroxysteroid dehydrogenase (11beta-HSD1), an enzyme attached through an integral N-terminal transmembrane helix to the lipid bilayer and located with its active site within the lumen of the endoplasmic reticulum. Here we report the crystal structure of recombinant guinea pig 11beta-HSD1. This variant was determined in complex with NADP at 2.5 A resolution and crystallized in the presence of detergent and guanidinium hydrochloride. The overall structure of guinea pig 11beta-HSD1 shows a clear relationship to other members of the superfamily of short-chain dehydrogenases/reductases but harbors a unique C-terminal helical segment that fulfills three essential functions and accordingly is involved in subunit interactions, contributes to active site architecture, and is necessary for lipid-membrane interactions. The structure provides a model for enzyme-lipid bilayer interactions and suggests a funneling of lipophilic substrates such as steroid hormones from the hydrophobic membrane environment to the enzyme active site.


    Organizational Affiliation

    Department of Structural Chemistry, Biovitrum, SE-112 76 Stockholm, Sweden.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
11beta-hydroxysteroid dehydrogenase type 1
A, B
295Cavia porcellusMutation(s): 0 
Gene Names: HSD11B1
EC: 1.1.1.146
Find proteins for Q6QLL4 (Cavia porcellus)
Go to Gene View: HSD11B1
Go to UniProtKB:  Q6QLL4
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NDP
Query on NDP

Download SDF File 
Download CCD File 
A, B
NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
C21 H30 N7 O17 P3
ACFIXJIJDZMPPO-NNYOXOHSSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.192 
  • Space Group: I 4 2 2
Unit Cell:
Length (Å)Angle (°)
a = 118.385α = 90.00
b = 118.385β = 90.00
c = 184.772γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
SHARPphasing
REFMACrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-11-16
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2011-07-27
    Type: Version format compliance
  • Version 1.4: 2018-08-08
    Type: Data collection