SH3-binding 5 (IPR007940)

Short name: SH3BP5

Overlapping homologous superfamilies


Family relationships



This family consists of several eukaryotic SH3 domain-binding protein 5 or c-Jun N-terminal kinase (JNK)-interacting proteins (SH3BP5 or Sab). Sab binds to and serves as a substrate for JNK in vitro, and has been found to interact with the Src homology 3 (SH3) domain of Bruton's tyrosine kinase (Btk). Inspection of the sequence of Sab reveals the presence of two putative mitogen-activated protein kinase interaction motifs (KIMs) similar to that found in the JNK docking domain of the c-Jun transcription factor, and four potential serine-proline JNK phosphorylation sites in the C-terminal half of the molecule [PMID: 12167088].

This entry also includes REI-1 and REI-2 from C. elegans. REI-1 is a guanine nucleotide exchange factors (GEFs) for RAB-11. It functions in early embryos [PMID: 26506309].

GO terms

Biological Process

GO:0035556 intracellular signal transduction

Molecular Function

No terms assigned in this category.

Cellular Component

No terms assigned in this category.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.