Macromolecule Content

• Total Structure Weight: 17.50 kDa 
• Atom Count: 1225 
• Residue Count: 151 
• Unique protein chains: 2

1XR0

Structural Basis of SNT PTB Domain Interactions with Distinct Neurotrophic Receptors

• DOI: 10.2210/pdb1XR0/pdb
• BMRB: 4790

• Classification: SIGNALING PROTEIN/GROWTH FACTOR RECEPTOR
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2004-10-13 Released: 2004-11-02 
• Deposition Author(s): Dhalluin, C., Yan, K.S., Plotnikova, O., Lee, K.W., Zeng, L., Kuti, M., Mujtaba, S., Goldfarb, M.P., Zhou, M.-M.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 1 
• Selection Criteria: structures with the least restraint violations 

Literature

Structural Basis of SNT PTB Domain Interactions with Distinct Neurotrophic Receptors

Dhalluin, C., Yan, K.S., Plotnikova, O., Lee, K.W., Zeng, L., Kuti, M., Mujtaba, S., Goldfarb, M.P., Zhou, M.-M.

(2000) Mol Cell 6: 921-929

• PubMed: 11090629 
• DOI: 10.1016/s1097-2765(05)00087-0
• Primary Citation of Related Structures:  
  1XR0


• PubMed Abstract: 
  

SNT adaptor proteins transduce activation of fibroblast growth factor receptors (FGFRs) and neurotrophin receptors (TRKs) to common signaling targets. The SNT-1 phosphotyrosine binding (PTB) domain recognizes activated TRKs at a canonical NPXpY motif and, atypically, binds to nonphosphorylated FGFRs in a region lacking tyrosine or asparagine. Here, using NMR and mutational analyses, we show that the PTB domain utilizes distinct sets of amino acid residues to interact with FGFRs or TRKs in a mutually exclusive manner. The FGFR1 peptide wraps around the beta sandwich structure of the PTB domain, and its binding is possibly regulated by conformational change of a unique C-terminal beta strand in the protein. Our results suggest mechanisms by which SNTs serve as molecular switches to mediate the essential interplay between FGFR and TRK signaling during neuronal differentiation.

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Organizational Affiliation: 

Department of Physiology and Biophysics, Mount Sinai School of Medicine, New York University, New York 10029, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Basic fibroblast growth factor receptor 1	A	22	N/A	Mutation(s): 0
Find proteins for P11362 (Homo sapiens) Explore P11362  Go to UniProtKB:  P11362
NIH Common Fund Data Resources
PHAROS  P11362 GTEx  ENSG00000077782

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
FGFR signalling adaptor SNT-1	B	129	Homo sapiens	Mutation(s): 0  Gene Names: FRS2
Find proteins for Q8WU20 (Homo sapiens) Explore Q8WU20  Go to UniProtKB:  Q8WU20
NIH Common Fund Data Resources
PHAROS  Q8WU20 GTEx  ENSG00000166225

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 1 
• Selection Criteria: structures with the least restraint violations 
• OLDERADO: 1XR0 Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2004-10-13 
• Released Date: 2004-11-02 
Deposition Author(s): Dhalluin, C., Yan, K.S., Plotnikova, O., Lee, K.W., Zeng, L., Kuti, M., Mujtaba, S., Goldfarb, M.P., Zhou, M.-M.

Revision History 

• Version 1.0: 2004-11-02
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance