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Protein

Actin-like protein 6B

Gene

ACTL6B

Organism
Bos taurus (Bovine)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at transcript leveli

Functioni

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

GO - Biological processi

Keywordsi

Molecular functionChromatin regulator
Biological processNeurogenesis, Transcription, Transcription regulation

Enzyme and pathway databases

ReactomeiR-BTA-3214858. RMTs methylate histone arginines.
R-BTA-8939243. RUNX1 interacts with co-factors whose precise effect on RUNX1 targets is not known.

Names & Taxonomyi

Protein namesi
Recommended name:
Actin-like protein 6B
Alternative name(s):
Actin-related protein Baf53b
ArpNalpha
BRG1-associated factor 53B
Short name:
BAF53B
Gene namesi
Name:ACTL6B
Synonyms:ACTL6, BAF53B
OrganismiBos taurus (Bovine)
Taxonomic identifieri9913 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaRuminantiaPecoraBovidaeBovinaeBos
Proteomesi
  • UP000009136 Componenti: Chromosome 25

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Nucleus

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemovedBy similarity
ChainiPRO_00003795172 – 426Actin-like protein 6BAdd BLAST425

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei2N-acetylserineBy similarity1
Cross-linki60Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)By similarity
Modified residuei83PhosphoserineBy similarity1

Keywords - PTMi

Acetylation, Isopeptide bond, Phosphoprotein, Ubl conjugation

Proteomic databases

PaxDbiA4FUX8.
PRIDEiA4FUX8.

Expressioni

Gene expression databases

BgeeiENSBTAG00000008295.

Interactioni

Subunit structurei

Component of the multiprotein chromatin-remodeling complexes SWI/SNF: SWI/SNF-A (BAF), SWI/SNF-B (PBAF) and related complexes. The canonical complex contains a catalytic subunit (either SMARCA4/BRG1/BAF190A or SMARCA2/BRM/BAF190B) and at least SMARCE1, ACTL6A/BAF53, SMARCC1/BAF155, SMARCC2/BAF170, and SMARCB1/SNF5/BAF47. Other subunits specific to each of the complexes may also be present permitting several possible combinations developmentally and tissue specific (By similarity).Component of the BAF complex, which includes at least actin (ACTB), ARID1A/BAF250A, ARID1B/BAF250B, SMARCA2/BRM, SMARCA4/BRG1/BAF190A, ACTL6A/BAF53, ACTL6B/BAF53B, SMARCE1/BAF57, SMARCC1/BAF155, SMARCC2/BAF170, SMARCB1/SNF5/INI1, and one or more SMARCD1/BAF60A, SMARCD2/BAF60B, or SMARCD3/BAF60C (By similarity). Component of neuron-specific chromatin remodeling complex (nBAF complex) composed of at least, ARID1A/BAF250A or ARID1B/BAF250B, SMARCD1/BAF60A or SMARCD2/BAF60B or SMARCD3/BAF60C, SMARCA2/BRM/BAF190B, SMARCA4/BRG1/BAF190A, SMARCB1/BAF47, SMARCC1/BAF155, SMARCE1/BAF57, SMARCC2/BAF170, DPF1/BAF45B, DPF3/BAF45C, ACTL6B/BAF53B and actin (ACTB). Note that the nBAF complex is polymorphic in regard to the ATPase, SMARCA2 and SMARCA4 occupying mutually exclusive positions (By similarity). May be a component of the SWI/SNF-B (PBAF) chromatin remodeling complex, at least composed of SMARCA4/BRG1, SMARCB1/BAF47/SNF5, ACTL6A/BAF53A or ACTL6B/BAF53B, SMARCE1/BAF57, SMARCD1/BAF60A, SMARCD2/BAF60B, perhaps SMARCD3/BAF60C, SMARCC1/BAF155, SMARCC2/BAF170, PBRM1/BAF180, ARID2/BAF200 and actin (By similarity).By similarity

Protein-protein interaction databases

STRINGi9913.ENSBTAP00000010915.

Structurei

3D structure databases

ProteinModelPortaliA4FUX8.
SMRiA4FUX8.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni39 – 82Essential for mediating its function in dendritic development; may contribute to neuronal-specific targetingBy similarityAdd BLAST44

Sequence similaritiesi

Belongs to the actin family.Curated

Phylogenomic databases

eggNOGiKOG0679. Eukaryota.
COG5277. LUCA.
GeneTreeiENSGT00900000140992.
HOGENOMiHOG000233340.
InParanoidiA4FUX8.
KOiK11652.
OMAiSTMERRF.
OrthoDBiEOG091G0A1S.
TreeFamiTF312863.

Family and domain databases

InterProiView protein in InterPro
IPR004000. Actin.
IPR004001. Actin_CS.
PANTHERiPTHR11937. PTHR11937. 1 hit.
PfamiView protein in Pfam
PF00022. Actin. 1 hit.
PRINTSiPR00190. ACTIN.
SMARTiView protein in SMART
SM00268. ACTIN. 1 hit.
PROSITEiView protein in PROSITE
PS00432. ACTINS_2. 1 hit.

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

A4FUX8-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSGGVYGGDE VGALVFDIGS FSVRAGYAGE DCPKADFPTT VGLLAAEEGG
60 70 80 90 100
GLELEGEKEK KGKIFHIDTN ALHVPRDGAE VMSPLKNGMI EDWECFRAIL
110 120 130 140 150
DHTYSKHVKS EPNLHPVLMS EAPWNTRAKR EKLTELMFEQ YNIPAFFLCK
160 170 180 190 200
TAVLTAFANG RSTGLVLDSG ATHTTAIPVH DGYVLQQGIV KSPLAGDFIS
210 220 230 240 250
MQCRELFQEM AIDIIPPYMI AAKEPVREGA PPNWKKKEKL PQVSKSWHNY
260 270 280 290 300
MCNEVIQDFQ ASVLQVSDSP YDEQVAAQMP TVHYEMPNGY NTDYGAERLR
310 320 330 340 350
IPEGLFDPSN VKGLSGNTML GVGHVVTTSI GMCDIDIRPG LYGSVIVTGG
360 370 380 390 400
NTLLQGFTDR LNRELSQKTP PSMRLKLIAS NSTMERKFSP WIGGSILASL
410 420
GTFQQMWISK QEYEEGGKQC VERKCP
Length:426
Mass (Da):46,891
Last modified:April 17, 2007 - v1
Checksum:i7B9CD9B70E1304CE
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BC123419 mRNA. Translation: AAI23420.1.
RefSeqiNP_001076839.1. NM_001083370.1.
UniGeneiBt.8753.

Genome annotation databases

EnsembliENSBTAT00000010915; ENSBTAP00000010915; ENSBTAG00000008295.
GeneIDi504476.
KEGGibta:504476.

Similar proteinsi

Entry informationi

Entry nameiACL6B_BOVIN
AccessioniPrimary (citable) accession number: A4FUX8
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 7, 2009
Last sequence update: April 17, 2007
Last modified: November 22, 2017
This is version 73 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families