Human Granulin C, isomer 2

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 60 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report

This is version 1.2 of the entry. See complete history


Structure dissection of human progranulin identifies well-folded granulin/epithelin modules with unique functional activities.

Tolkatchev, D.Malik, S.Vinogradova, A.Wang, P.Chen, Z.Xu, P.Bennett, H.P.Bateman, A.Ni, F.

(2008) Protein Sci 17: 711-724

  • DOI: https://doi.org/10.1110/ps.073295308
  • Primary Citation of Related Structures:  
    2JYE, 2JYT, 2JYU, 2JYV

  • PubMed Abstract: 

    Progranulin is a secreted protein with important functions in several physiological and pathological processes, such as embryonic development, host defense, and wound repair. Autosomal dominant mutations in the progranulin gene cause frontotemporal dementia, while overexpression of progranulin promotes the invasive progression of a range of tumors, including those of the breast and the brain. Structurally, progranulin consists of seven-and-a-half tandem repeats of the granulin/epithelin module (GEM), several of which have been isolated as discrete 6-kDa GEM peptides. We have expressed all seven human GEMs using recombinant DNA in Escherichia coli. High-resolution NMR showed that only the three GEMs, hGrnA, hGrnC, and hGrnF, contain relatively well-defined three-dimensional structures in solution, while others are mainly mixtures of poorly structured disulfide isomers. The three-dimensional structures of hGrnA, hGrnC, and hGrnF contain a stable stack of two beta-hairpins in their N-terminal subdomains, but showed a more flexible C-terminal subdomain. Interestingly, of the well-structured GEMs, hGrnA demonstrated potent growth inhibition of a breast cancer cell line, while hGrnF was stimulatory. Poorly folded peptides were either weakly inhibitory or without activity. The functionally active and structurally well-characterized human hGrnA offers a unique opportunity for detailed structure-function studies of these important GEM proteins as novel members of mammalian growth factors.

  • Organizational Affiliation

    Bio-NMR and Protein Research Laboratory, Biotechnology Research Institute, National Research Council of Canada, Montreal, Quebec H4P 2R2, Canada.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Granulin-569Homo sapiensMutation(s): 0 
Gene Names: GRN
UniProt & NIH Common Fund Data Resources
Find proteins for P28799 (Homo sapiens)
Explore P28799 
Go to UniProtKB:  P28799
PHAROS:  P28799
GTEx:  ENSG00000030582 
Entity Groups  
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UniProt GroupP28799
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 60 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2008-04-22
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2022-03-16
    Changes: Data collection, Database references, Derived calculations