ACTL6B

Gene Information

Official Symbol: ACTL6B
Official Name: actin like 6B
Aliases and Previous Symbols: N/A
Entrez ID: 51412
UniProt: O94805
Interactions: BioGRID
PubMed articles: Open PubMed
OMIM: Open OMIM

Function Summary

Entrez Summary: N/A
UniProt Summary: 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. Belongs to the neuron-specific chromatin remodeling complex (nBAF complex), as such plays a role in remodeling mononucleosomes in an ATP-dependent fashion, and is required for postmitotic neural development and dendritic outgrowth. 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. ACTL6B/BAF53B is not essential for assembly of the nBAF complex but is required for targeting the complex and CREST to the promoter of genes essential for dendritic growth (By similarity). {ECO:0000250|UniProtKB:Q99MR0, ECO:0000303|PubMed:22952240, ECO:0000303|PubMed:26601204}.

Pfam Domains GO Terms

CRISPR Data

Compound Hit Most Correlated Genes in Chemogenomics Tissues where Essential in the Avana Dataset (DepMap 20Q1)

Global Fraction of Cell Lines Where Essential: 0/726

Tissue	Fraction Of Cell Lines Where Essential
1290807.0	0/1
909776.0	0/1
bile duct	0/28
blood	0/28
bone	0/25
breast	0/33
central nervous system	0/56
cervix	0/4
colorectal	0/17
esophagus	0/13
fibroblast	0/1
gastric	0/15
kidney	0/21
liver	0/20
lung	0/75
lymphocyte	0/14
ovary	0/26
pancreas	0/24
peripheral nervous system	0/16
plasma cell	0/15
prostate	0/1
skin	0/24
soft tissue	0/7
thyroid	0/2
upper aerodigestive	0/22
urinary tract	0/29
uterus	0/5

Essentiality in NALM6

Essentiality Rank: 12953
Expression level (log2 read counts): -2.9

Expression Distribution

nBAF complex
SWI/SNF complex
NuA4 histone acetyltransferase complex
histone H4 acetylation
ATP-dependent chromatin remodeling
structural constituent of cytoskeleton
spinal cord development
histone acetylation
internal peptidyl-lysine acetylation
peptidyl-lysine acetylation
internal protein amino acid acetylation
protein acetylation
chromatin remodeling
protein acylation
transcription coactivator activity
peptidyl-lysine modification
histone modification
covalent chromatin modification
chromatin binding
chromatin organization
nucleolus
peptidyl-amino acid modification
central nervous system development
chromosome organization
cytoskeleton organization
positive regulation of nucleic acid-templated transcription
positive regulation of RNA biosynthetic process
positive regulation of RNA metabolic process
positive regulation of nucleobase-containing compound metabolic process
positive regulation of macromolecule biosynthetic process
positive regulation of cellular biosynthetic process
positive regulation of biosynthetic process