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  Domain Name: PTB_FAM43A
Family with sequence similarity 43, member A (FAM43A) Phosphotyrosine-binding (PTB) domain. The function of FAM43A is currently unknown. Human FAM43A is located on chromosome 3 at location 3q29. It encodes a 3182 base pair mRNA which possesses one Pleckstrin homology-like domain. The mRNA translates into LOC131583, a hydrophilic protein that is predicted to localize in the nucleus. The FAM43A gene is conserved through a broad range of vertebrates. It is highly conserved from chimpanzees to zebrafish. PTB domains have a common PH-like fold and are found in various eukaryotic signaling molecules. This domain was initially shown to binds peptides with a NPXY motif with differing requirements for phosphorylation of the tyrosine, although more recent studies have found that some types of PTB domains can bind to peptides lack tyrosine residues altogether. In contrast to SH2 domains, which recognize phosphotyrosine and adjacent carboxy-terminal residues, PTB-domain binding specificity is conferred by residues amino-terminal to the phosphotyrosine. PTB domains are classified into three groups: phosphotyrosine-dependent Shc-like, phosphotyrosine-dependent IRS-like, and phosphotyrosine-independent Dab-like PTB domains.
No pairwise interactions are available for this conserved domain.

Total Mutations Found: 0
Total Disease Mutations Found: 0
This domain occurred 4 times on human genes (5 proteins).




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Range on the Protein:  

   Protein ID            Protein Position

Domain Position:  


Feature Name:Total Found:
putative phosphoinositide
putative peptide binding











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Please Cite: Peterson, T.A., Adadey, A., Santana-Cruz ,I., Sun, Y., Winder A, Kann, M.G., (2010) DMDM: Domain Mapping of Disease Mutations. Bioinformatics 26 (19), 2458-2459.

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