Human StarD13 (DLC2) lipid transfer and protein localization domain

Experimental Data Snapshot

  • Resolution: 2.80 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.211 

Starting Model: experimental
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This is version 1.5 of the entry. See complete history


Comparative structural analysis of lipid binding START domains.

Thorsell, A.G.Lee, W.H.Persson, C.Siponen, M.I.Nilsson, M.Busam, R.D.Kotenyova, T.Schuler, H.Lehtio, L.

(2011) PLoS One 6: e19521-e19521

  • DOI: https://doi.org/10.1371/journal.pone.0019521
  • Primary Citation of Related Structures:  
    2PSO, 2R55, 3FO5, 3P0L

  • PubMed Abstract: 

    Steroidogenic acute regulatory (StAR) protein related lipid transfer (START) domains are small globular modules that form a cavity where lipids and lipid hormones bind. These domains can transport ligands to facilitate lipid exchange between biological membranes, and they have been postulated to modulate the activity of other domains of the protein in response to ligand binding. More than a dozen human genes encode START domains, and several of them are implicated in a disease. We report crystal structures of the human STARD1, STARD5, STARD13 and STARD14 lipid transfer domains. These represent four of the six functional classes of START domains. Sequence alignments based on these and previously reported crystal structures define the structural determinants of human START domains, both those related to structural framework and those involved in ligand specificity. This article can also be viewed as an enhanced version in which the text of the article is integrated with interactive 3D representations and animated transitions. Please note that a web plugin is required to access this enhanced functionality. Instructions for the installation and use of the web plugin are available in Text S1.

  • Organizational Affiliation

    Department of Medical Biochemistry and Biophysics, Structural Genomics Consortium, Karolinska Institutet, Stockholm, Sweden.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
StAR-related lipid transfer protein 13
A, B, C
237Homo sapiensMutation(s): 0 
Gene Names: STARD13DLC2GT650
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for Q9Y3M8 (Homo sapiens)
Explore Q9Y3M8 
Go to UniProtKB:  Q9Y3M8
GTEx:  ENSG00000133121 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9Y3M8
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.80 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.211 
  • Space Group: P 43
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 78.24α = 90
b = 78.24β = 90
c = 212.72γ = 90
Software Package:
Software NamePurpose
ProDCdata collection
XDSdata reduction
XSCALEdata scaling

Structure Validation

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Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2007-05-15
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.3: 2011-09-21
    Changes: Database references
  • Version 1.4: 2017-10-18
    Changes: Refinement description
  • Version 1.5: 2023-08-30
    Changes: Data collection, Database references, Refinement description