SMARCC1
Function
Involved in transcriptional activation and repression of select genes by chromatin remodeling (alteration of DNA-nucleosome topology). Component of SWI/SNF chromatin remodeling complexes that carry out key enzymatic activities, changing chromatin structure by altering DNA-histone contacts within a nucleosome in an ATP-dependent manner. May stimulate the ATPase activity of the catalytic subunit of the complex (PubMed:10078207, PubMed:29374058). Belongs to the neural progenitors-specific chromatin remodeling complex (npBAF complex) and the neuron-specific chromatin remodeling complex (nBAF complex). During neural development a switch from a stem/progenitor to a postmitotic chromatin remodeling mechanism occurs as neurons exit the cell cycle and become committed to their adult state. The transition from proliferating neural stem/progenitor cells to postmitotic neurons requires a switch in subunit composition of the npBAF and nBAF complexes. As neural progenitors exit mitosis and differentiate into neurons, npBAF complexes which contain ACTL6A/BAF53A and PHF10/BAF45A, are exchanged for homologous alternative ACTL6B/BAF53B and DPF1/BAF45B or DPF3/BAF45C subunits in neuron-specific complexes (nBAF). The npBAF complex is essential for the self-renewal/proliferative capacity of the multipotent neural stem cells. The nBAF complex along with CREST plays a role regulating the activity of genes essential for dendrite growth (By similarity).
Involvement in disease
Hydrocephalus, congenital, 5
HYC5
A form of congenital hydrocephalus, a disease characterized by in utero onset of enlarged ventricles due to accumulation of ventricular cerebrospinal fluid. HYC5 is an autosomal dominant form with incomplete penetrance and variable expressivity, associated with aqueductal stenosis apparent from birth. Some patients may have neurodevelopmental delay, seizures, or structural brain abnormalities.
None
Disease susceptibility is associated with variants affecting the gene represented in this entry.
Post-translational modifications
Phosphorylated on undefined residues at the G2/M transition by ERK1 and other kinases. This may contribute to cell cycle specific inactivation of remodeling complexes containing the phosphorylated protein.
Sequence Similarities
Belongs to the SMARCC family.
Tissue Specificity
Expressed in brain, heart, muscle, placenta, lung, liver, muscle, kidney and pancreas.
Cellular localization
- Nucleus
- Cytoplasm
Alternative names
BAF155, SMARCC1, SWI/SNF complex subunit SMARCC1, BRG1-associated factor 155, SWI/SNF complex 155 kDa subunit, SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily C member 1