6O1Q

The N-terminal domain of NPHP1 folds into an antiparallel three-stranded coiled coil


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


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Literature

The N-Terminal Domain of NPHP1 Folds into a Monomeric Left-Handed Antiparallel Three-Stranded Coiled Coil with Anti-apoptotic Function.

Mannella, V.Quilici, G.Nigro, E.A.Lampis, M.Minici, C.Degano, M.Boletta, A.Musco, G.

(2019) ACS Chem Biol 14: 1845-1854

  • DOI: 10.1021/acschembio.9b00582
  • Primary Citation of Related Structures:  
    6O1Q

  • PubMed Abstract: 
  • Mutations in the NPHP1 gene, coding for human nephrocystin-1 (NPHP1), cause the autosomal recessive disease nephronophthisis, the most common cause of end-stage renal disease in children and adolescents. The function and structure of NPHP1 are still poorly characterized ...

    Mutations in the NPHP1 gene, coding for human nephrocystin-1 (NPHP1), cause the autosomal recessive disease nephronophthisis, the most common cause of end-stage renal disease in children and adolescents. The function and structure of NPHP1 are still poorly characterized. NPHP1 presents a modular structure well in keeping with its role as an adaptor protein: it harbors an SH3 domain flanked by two glutamic acid-rich regions and a conserved C-terminal nephrocystin homology domain (NHD). Similar to other NPHP protein family members, its N-terminus contains a putative coiled-coil domain (NPHP1 CC ) that is supposed to play an important role in NPHP1 self-association and/or protein-protein interactions. Structural studies proving its structure and its oligomerization state are still lacking. Here we demonstrate that NPHP1 CC is monomeric in solution and unexpectedly folds into an autonomous domain forming a three-stranded antiparallel coiled coil suitable for protein-protein interactions. Notably, we found that the NPHP1 CC shares remarkable structural similarities with the three-stranded coiled coil of the BAG domain protein family, which is known to mediate the anti-apoptotic function of these proteins, suggesting a possible similar role for NPHP1 CC . In agreement with this hypothesis, we show that in the context of the full-length protein the NPHP1 CC is fundamental to regulate resistance to apoptotic stimuli.


    Organizational Affiliation

    Biomolecular NMR Laboratory, Division of Genetics and Cell Biology , IRCCS Ospedale San Raffaele , Via Olgettina 58 , 20132 Milan , Italy.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Nephrocystin-1A119Homo sapiensMutation(s): 0 
Gene Names: NPHP1NPH1
UniProt & NIH Common Fund Data Resources
Find proteins for O15259 (Homo sapiens)
Explore O15259 
Go to UniProtKB:  O15259
PHAROS:  O15259
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 6O1Q Olderado

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Fondazione CARIPLOItalyR0532

Revision History  (Full details and data files)

  • Version 1.0: 2019-08-14
    Type: Initial release
  • Version 1.1: 2019-08-28
    Changes: Data collection, Database references