Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Predict Membrane 

Global Symmetry: Cyclic - C3  (3D View)
Global Stoichiometry: Homo 3-mer - A3 

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

Biological Assembly 2  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Predict Membrane 

Global Symmetry: Dihedral - D3  (3D View)
Global Stoichiometry: Homo 6-mer - A6 

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 37.51 kDa 
• Atom Count: 2183 
• Modelled Residue Count: 272 
• Deposited Residue Count: 342 
• Unique protein chains: 1

1RGX

Crystal Structure of resisitin

• PDB DOI: 10.2210/pdb1RGX/pdb

• Classification: HORMONE/GROWTH FACTOR
• Organism(s): Mus musculus
• Expression System: Homo sapiens
• Mutation(s): No 
• Membrane Protein: Yes  OPM


• Deposited: 2003-11-13 Released: 2004-06-08 
• Deposition Author(s): Patel, S.D., Rajala, M.W., Scherer, P.E., Shapiro, L., Burley, S.K., New York SGX Research Center for Structural Genomics (NYSGXRC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.79 Å
• R-Value Free: 0.245 
• R-Value Work: 0.204 
• R-Value Observed: 0.206 

Literature

Disulfide-dependent multimeric assembly of resistin family hormones

Patel, S.D., Rajala, M.W., Rossetti, L., Scherer, P.E., Shapiro, L.

(2004) Science 304: 1154-1158

• PubMed: 15155948 
• DOI: 10.1126/science.1093466
• Primary Citation of Related Structures:  
  1RFX, 1RGX, 1RH7


• PubMed Abstract: 
  

Resistin, founding member of the resistin-like molecule (RELM) hormone family, is secreted selectively from adipocytes and induces liver-specific antagonism of insulin action, thus providing a potential molecular link between obesity and diabetes. Crystal structures of resistin and RELMbeta reveal an unusual multimeric structure. Each protomer comprises a carboxy-terminal disulfide-rich beta-sandwich "head" domain and an amino-terminal alpha-helical "tail" segment. The alpha-helical segments associate to form three-stranded coiled coils, and surface-exposed interchain disulfide linkages mediate the formation of tail-to-tail hexamers. Analysis of serum samples shows that resistin circulates in two distinct assembly states, likely corresponding to hexamers and trimers. Infusion of a resistin mutant, lacking the intertrimer disulfide bonds, in pancreatic-insulin clamp studies reveals substantially more potent effects on hepatic insulin sensitivity than those observed with wild-type resistin. This result suggests that processing of the intertrimer disulfide bonds may reflect an obligatory step toward activation.

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Organizational Affiliation: 

Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY 10032, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Resistin	A, B, C	114	Mus musculus	Mutation(s): 0  Gene Names: Retn, Fizz3 Membrane Entity: Yes
UniProt
Find proteins for Q99P87 (Mus musculus) Explore Q99P87  Go to UniProtKB:  Q99P87

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.79 Å
• R-Value Free: 0.245 
• R-Value Work: 0.204 
• R-Value Observed: 0.206 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 49.021	α = 90
b = 52.475	β = 96.53
c = 96.609	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2003-11-13 
• Released Date: 2004-06-08 
Deposition Author(s): Patel, S.D., Rajala, M.W., Scherer, P.E., Shapiro, L., Burley, S.K., New York SGX Research Center for Structural Genomics (NYSGXRC)

Revision History  

• Version 1.0: 2004-06-08
  Type: Initial release
  
• Version 1.1: 2008-04-29
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.3: 2021-02-03
  Changes: Structure summary