1NF1

THE GAP RELATED DOMAIN OF NEUROFIBROMIN

DOI: 10.2210/pdb1NF1/pdb

Classification: SIGNALING PROTEIN
Organism(s): Homo sapiens
Expression System: Escherichia coli
Mutation(s): No

Deposited: 1998-07-08 Released: 1999-07-20
Deposition Author(s): Scheffzek, K., Ahmadian, M.R., Wiesmueller, L., Kabsch, W., Stege, P., Schmitz, F., Wittinghofer, A.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.50 Å
R-Value Free: 0.369
R-Value Work: 0.266
R-Value Observed: 0.266

wwPDB Validation 3D Report Full Report

This is version 1.3 of the entry. See complete history.

Literature

Structural analysis of the GAP-related domain from neurofibromin and its implications.

Scheffzek, K., Ahmadian, M.R., Wiesmuller, L., Kabsch, W., Stege, P., Schmitz, F., Wittinghofer, A.

(1998) EMBO J 17: 4313-4327

PubMed: 9687500 Search on PubMedSearch on PubMed Central
DOI: 10.1093/emboj/17.15.4313
Primary Citation of Related Structures:
1NF1

PubMed Abstract:

Neurofibromin is the product of the NF1 gene, whose alteration is responsible for the pathogenesis of neurofibromatosis type 1 (NF1), one of the most frequent genetic disorders in man. It acts as a GTPase activating protein (GAP) on Ras; based on homology to p120GAP, a segment spanning 250-400 aa and termed GAP-related domain (NF1GRD; 25-40 kDa) has been shown to be responsible for GAP activity and represents the only functionally defined segment of neurofibromin. Missense mutations found in NF1 patients map to NF1GRD, underscoring its importance for pathogenesis. X-ray crystallographic analysis of a proteolytically treated catalytic fragment of NF1GRD comprising residues 1198-1530 (NF1-333) of human neurofibromin reveals NF1GRD as a helical protein that resembles the corresponding fragment derived from p120GAP (GAP-334). A central domain (NF1c) containing all residues conserved among RasGAPs is coupled to an extra domain (NF1ex), which despite very limited sequence homology is surprisingly similar to the corresponding part of GAP-334. Numerous point mutations found in NF1 patients or derived from genetic screening protocols can be analysed on the basis of the three-dimensional structural model, which also allows identification of the site where structural changes in a differentially spliced isoform are to be expected. Based on the structure of the complex between Ras and GAP-334 described earlier, a model of the NF1GRD-Ras complex is proposed which is used to discuss the strikingly different properties of the Ras-p120GAP and Ras-neurofibromin interactions.

Related Citations:

The Ras-Rasgap Complex: Structural Basis for Gtpase Activation and its Loss in Oncogenic Ras Mutants
Scheffzek, K., Ahmadian, M.R., Kabsch, W., Wiesmueller, L., Lautwein, A., Schmitz, F., Wittinghofer, A.
(1997) Science 277: 333

Confirmation of the Arginine-Finger Hypothesis for the Gap-Stimulated GTP- Hydrolysis Reaction of Ras
Ahmadian, M.R., Stege, P., Scheffzek, K., Wittinghofer, A.
(1997) Nat Struct Biol 4: 686

Structural Differences in the Minimal Catalytic Domains of the Gtpasse- Activating Proteins P120Gap and Neurofibromin
Ahmadian, M.R., Wiesmueller, L., Lautwein, A., Bischoff, F.R., Wittinghofer, A.
(1996) J Biol Chem 271: 16409

3-Dimensional Structure of the Gtpase Activating Domain of Human P120Gap and Implications for the Interaction with Ras
Scheffzek, K., Lautwein, A., Kabsch, W., Ahmadian, M.R., Wittinghofer, A.
(1996) Nature 384: 591

Formation of a Transition-State Analog of the Ras Gtpase Reaction by Ras:Gdp, Tetrafluoroaluminate and Gtpase-Activating Proteins
Mittal, R., Ahmadian, M.R., Goody, R.S., Wittinghofer, A.
(1996) Science 273: 115

The Neurofibromatosis Type I Gene and its Protein Product
Gutmann, D.H., Collins, F.S.
(1993) Neuron 10: 335

The NF1 Locus Encodes a Protein Functionally Related to Mammalian Gap and Yeast Ira Proteins
Ballester, R., Marchuk, D., Boguski, M., Saulino, A., Letcher, R., Wigler, M., Collins, F.
(1990) Cell 63: 851

The Gap-Related Domain of the Neurofibromatosis Type I Gene Product Interacts with Ras P21
Martin, G.A., Viskochil, D., Bollag, G., Mccabe, P.C., Crosier, W.J., Hausbruck, H., Conroy, L., Clark, R., O'Connell, P., Cawthon, R.M., Innis, M.A., Mccormick, F.
(1990) Cell 63: 843

The Catalytic Domain of the Neurofibromatosis Type I Gene Product Stimulates Ras Gtpase and Complements Ira Mutants of S. Cerevisiae
Xu, G., Lin, B., Tanaka, K., Dunn, D., Wod, D., Gesteland, R., White, R., Weiss, R., Tamanoi, F.
(1990) Cell 63: 835

Refined Crystal Structure of the Triphosphate Conformation of H-Ras P21 at 1.35 A Resolution: Implications for the Mechanism of GTP Hydrolysis
Pai, E.F., Krengel, U., Petsko, G.A., Goody, R.S., Kabsch, W., Wittinghofer, A.
(1990) EMBO J 9: 2351

Organizational Affiliation:

Max-Planck-Institut für molekulare Physiologie, Dortmund, Germany. Klas.Scheffzek@mpi-dortmund.mpg.de

Macromolecules

Find similar proteins by:

(by identity cutoff) | Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PROTEIN (NEUROFIBROMIN)	A	333	Homo sapiens	Mutation(s): 0 Gene Names: NF1
Find proteins for P21359 (Homo sapiens) Explore P21359 Go to UniProtKB: P21359
NIH Common Fund Data Resources
PHAROS P21359 GTEx ENSG00000196712
Protein Feature View Expand
Reference Sequence