Protein Domain : IPR024159

Type:  Domain Name:  Adaptor protein Cbl, PTB domain
Description:  Cbl (Casitas B-lineage lymphoma) is an adaptor protein that functions as a negative regulator of many signalling pathways that start from receptors at the cell surface.The N-terminal region of Cbl contains a Cbl-type phosphotyrosine-binding (Cbl-PTB) domain, which is composed of three evolutionarily conserved domains: an N-terminal four-helix bundle (4H) domain, an EF hand-like calcium-binding domain, and a divergent SH2-like domain. The calcium-bound EF-hand wedges between the 4H and SH2 domains, and roughly determines their relative orientation. The Cbl-PTB domain has also been named Cbl N-terminal (Cbl-N) or tyrosine kinase binding (TKB) domain [, ].The N-terminal 4H domain contains four long alpha-helices. The C and D helices in this domain pack against the adjacent EF-hand-like domain, and a highly conserved loop connecting the A and B helices contacts the SH2-like domain. The EF-hand motif is similar to classical EF-hand proteins. The SH2-like domain retains the general helix-sheet-helix architecture of the SH2 fold, but lacks the secondary beta-sheet, comprising beta-strands D', E and F, and also a prominent BG loop [].This entry represents the Cbl-PTB domain. Short Name:  Cbl_PTB

0 Child Features

0 Contains

1 Cross References

Identifier
PS51506

0 Found In

1 GO Annotation

GO Term Gene Name
GO:0001784 IPR024159

1 Ontology Annotations

GO Term Gene Name
GO:0001784 IPR024159

0 Parent Features

1 Proteins

DB identifier UniProt Accession Secondary Identifier Organism Name Length
CKAN_00672100 A0A443NI44 PAC:42692803 Cinnamomum kanehirae 878  

2 Publications

First Author Title Year Journal Volume Pages PubMed ID
            10078535
            18840649