Coronins are a family of WD repeat-containing, actin-binding proteins that localize to submembraneous areas and regulate cell motility and cytoskeletal rearrangement. Coronin 1A (CORO1A, CLIPINA, CLABP, TACO, p57) can form coiled coil-mediated homotrimeric complexes that influence early phagosome formation. PKSLCdependent phosphorylation of Coronin 1B (CORO1B) at Serine 2 regulates leading edge dynamics and cell motility in fibroblasts through interactions with Arp2/3 complex. Coronin 1C (CORO1C, Coronin 3, HCRNN4) is abundant in differentiating Neuro-2a cells, PSLC12 cells and primary oligodendrocytes, where it is thought to influence neuron morphogenesis and migration. Coronin 2A (CORO2A, CLIPINB, IR10, WDR2) is a component of the approximately 1.5-2 megadalton N-CoR (nuclear receptor corepressor) complex of 10-12 proteins, which recruits HDACs to generate repressive chromatin. Coronin 7 (CORO7, CRN7) localizes to the Golgi membrane and influences the organization of intracellular membrane compartments and vesicular trafficking. Coronin 2B (CORO2B, CLIPINC) and Coronin 6 (CORO6) are similar to other members of this family, since they possess a conserved basic N-terminal motif and 3-10 WD repeats clustered in one to two core domains.
Function:
Regulates leading edge dynamics and cell motility in fibroblasts. May be involved in cytokinesis and signal transduction.
Subcellular Location:
Cytoplasm > cytoskeleton. Localized to the leading edge in fibroblasts, as well as weakly along actin stress fibers.
Post-translational modifications:
Phosphorylation by PKC on Ser-2 regulates the interaction with the Arp2/3 complex and cell motility in fibroblasts. Phosphorylation does not seem to affect subcellular location.
Similarity:
Belongs to the WD repeat coronin family.
Contains 5 WD repeats.
SWISS:
Q9BR76
Gene ID:
57175
Database links:
Entrez Gene: 57175 Human
Entrez Gene: 510128 Cow
Entrez Gene: 23789 Mouse
Entrez Gene: 100009415 Rabbit
Entrez Gene: 29474 Rat
Entrez Gene: 560168 Zebrafish
Omim: 609849 Human
SwissProt: Q9BR76 Human
SwissProt: Q9WUM3 Mouse
SwissProt: O89046 Rat
Unigene: 6191 Human
Unigene: 276859 Mouse
Unigene: 2819 Rat
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