Crystal structure of the H. sapiens NF1 SEC-PH domain (del1750 mutant)

Experimental Data Snapshot

  • Resolution: 2.19 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.210 

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Structural and biochemical consequences of NF1 associated nontruncating mutations in the Sec14-PH module of neurofibromin.

Welti, S.Kuhn, S.D'Angelo, I.Brugger, B.Kaufmann, D.Scheffzek, K.

(2011) Hum Mutat 32: 191-197

  • DOI: https://doi.org/10.1002/humu.21405
  • Primary Citation of Related Structures:  
    3P7Z, 3PEG, 3PG7

  • PubMed Abstract: 

    Neurofibromatosis type 1 (NF1) is a common genetic disorder caused by alterations in the tumor suppressor gene NF1. Clinical manifestations include various neural crest derived tumors, pigmentation anomalies, bone deformations, and learning disabilities. NF1 encodes the Ras specific GTPase activating protein (RasGAP) neurofibromin, of which the central RasGAP related domain as well as a Sec14-like (residues 1560-1699) and a tightly interacting pleckstrin homology (PH)-like (1713-1818) domain are currently well defined. However, patient-derived nontruncating mutations have been reported along the whole NF1 gene, suggesting further essential protein functions. Focusing on the Sec14-PH module, we have engineered such nontruncating mutations and analyzed their implications on protein function and structure using lipid binding assays, CD spectroscopy and X-ray crystallography. Although lipid binding appears to be preserved among most nontruncating mutants, we see major structural changes for two of the alterations. Judging from these changes and our biochemical data, we suggest the presence of an intermolecular contact surface in the lid-lock region of the protein.

  • Organizational Affiliation

    European Molecular Biology Laboratory (EMBL), Structural and Computational Biology Unit, Heidelberg, Germany. welti@embl.de

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B
256Homo sapiensMutation(s): 0 
Gene Names: NF1
UniProt & NIH Common Fund Data Resources
Find proteins for P21359 (Homo sapiens)
Explore P21359 
Go to UniProtKB:  P21359
PHAROS:  P21359
GTEx:  ENSG00000196712 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP21359
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.19 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.210 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 113.44α = 90
b = 113.44β = 90
c = 124.49γ = 90
Software Package:
Software NamePurpose
ADSCdata collection
XDSdata reduction
XDSdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-12-08
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance