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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. 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.
Gene References into Functions
Study found SMARCC1 as a direct target of miR-202-5p and promoted the growth and metastasis of colorectal carcinoma (CRC) cells. Furthermore, SMARCC1 could reverse the inhibitory effect of miR-202-5p on growth and metastasis of CRC cells. PMID: 30144500
our data showed that Swi3 strongly affects haem/oxygen-dependent activation of respiration gene promoters whereas Swi2 affects only the basal, haem-independent activities of these promoters. using computational analysis and RNAi knockdown, we showed that the mammalian Swi3 BAF155 and BAF170 regulate respiration in HeLa cells. PMID: 27190130
Results show the secondary structure of SWIRM domain of BAF155 consists of five alpha-helices forming a typical histone fold for DNA interactions. PMID: 23996527
we identify BAF155 as a substrate for arginine methyltransferase CARM1. PMID: 24434208
miR-320c regulates the resistance of pancreatic cancer cells to gemcitabine through SMARCC1. PMID: 23799850
loss of BAF155 expression represents another mechanism for inactivation of SWI/SNF complex activity in the development in human cancer. PMID: 22139574
Data show that the mechanism of BAF155-mediated stabilization of BAF57 involves blocking its ubiquitination by preventing interaction with TRIP12. PMID: 20829358
protein levels of BAF155/170 dictate the maximum cellular amount of BAF57 PMID: 16199878
Constitutive expression of SRG3 inhibits positive selection processes in T-cell receptor transgenic mice. PMID: 17513758
An increased expression of SMARCC1 protein was found in prostate cancer positively correlated with tumour dedifferentiation, progression, metastasis and time to recurrence. PMID: 18581278
patients with tumours displaying high levels of CBFB and SMARCC1 proteins had a significantly better overall survival rate than patients with low levels PMID: 19156145
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Subcellular Location
Nucleus. Cytoplasm.
Protein Families
SMARCC family
Tissue Specificity
Expressed in brain, heart, muscle, placenta, lung, liver, muscle, kidney and pancreas.