| Primary Identifier | IPR017901 | Type | Domain |
| Short Name | C-CAP_CF_C-like |
| description | The C-CAP/cofactor C-like domain is present in several cytoskeleton-related proteins, which also contain a number of additional domains [, , , ]:Eukaryotic cyclase-associated protein (CAP or SRV2), a modular actin monomer binding that directly regulates filament dynamics and has been implicated in a number of complex developmental and morphological processes, including mRNA localisation and the establishment of cell polarity.Vertebrate retinitis pigmentosa 2 (XRP2). In Homo sapiens (Human), it is the protein responsible for X-linked forms of retinitis pigmentosa, a disease characterised by severe retinal degeneration.Eukaryotic tubulin-specific chaperone cofactor C (TBCC), a GTPase- activating component of the tubulin-folding supercomplex, which directs the assembly of the alpha- and beta-tubulin heterodimer.The cyclase-associated protein C-CAP/cofactor C-like domain binds G-actin and is responsible for oligomerisation of the entire CAP molecule [], whereas the XRP2 C-CAP/cofactor C-like domain is required for binding of ADP ribosylation factor-like protein 3 (Arl3) [].The central core of the C-CAP/cofactor C-like domain is composed of six coils of right-handed parallel β-helices, termed coils 1-6, which form an elliptical barrel with a tightly packed interior. Each β-helical coil is composed of three relatively short β-strands, designated a-c, separated by sharp turns. Flanking the central β-helical core is an N-terminal β-strand, β0, that packs antiparallel to the core, and strand β7 packs antiparallel to the core near the C-terminal end of the parallel β-helix [, ]. |
