Q3TKT4 (SMCA4_MOUSE) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 74.
History...
Names·Attributes·General annotation·Ontologies·Interactions·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Interactions·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Transcription activator BRG1 EC=3.6.4.- Alternative name(s): ATP-dependent helicase SMARCA4 BRG1-associated factor 190A Short name=BAF190A Protein brahma homolog 1 SNF2-beta SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily A member 4 | ||||
| Gene names |
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| Organism | Mus musculus (Mouse) [Reference proteome] | ||||
| Taxonomic identifier | 10090 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Sciurognathi › Muroidea › Muridae › Murinae › Mus › Mus![]() |
Protein attributes
| Sequence length | 1613 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Transcriptional coactivator cooperating with nuclear hormone receptors to potentiate transcriptional activation. Also involved in vitamin D-coupled transcription regulation via its association with the WINAC complex, a chromatin-remodeling complex recruited by vitamin D receptor (VDR), which is required for the ligand-bound VDR-mediated transrepression of the CYP27B1 gene. Component of the CREST-BRG1 complex, a multiprotein complex that regulates promoter activation by orchestrating a calcium-dependent release of a repressor complex and a recruitment of an activator complex. In resting neurons, transcription of the c-FOS promoter is inhibited by BRG1-dependent recruitment of a phospho-RB1-HDAC repressor complex. Upon calcium influx, RB1 is dephosphorylated by calcineurin, which leads to release of the repressor complex. At the same time, there is increased recruitment of CREBBP to the promoter by a CREST-dependent mechanism, which leads to transcriptional activation. The CREST-BRG1 complex also binds to the NR2B promoter, and activity-dependent induction of NR2B expression involves a release of HDAC1 and recruitment of CREBBP By similarity. 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 post-mitotic 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 post-mitotic 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. SMARCA4/BAF190A may promote neural stem cell self-renewal/proliferation by enhancing Notch-dependent proliferative signals, while concurrently making the neural stem cell insensitive to SHH-dependent differentiating cues. Acts as a corepressor of ZEB1 to regulate E-cadherin transcription and is required for induction of epithelial-mesenchymal transition (EMT) by ZEB1 By similarity. Ref.5 |
| Subunit structure | Interacts with NR3C1, PGR, SMARD1, TOPBP1 and ZMIM2/ZIMP7. Component of the BAF complex, which includes at least actin (ACTB), ARID1A, ARID1B/BAF250, SMARCA2, SMARCA4/BRG1/BAF190A, ACTL6A/BAF53, ACTL6B/BAF53B, SMARCE1/BAF57, SMARCC1/BAF155, SMARCC2/BAF170, SMARCB1/SNF5/INI1, IKFZ1, and one or more of SMARCD1/BAF60A, SMARCD2/BAF60B, or SMARCD3/BAF60C. Interacts directly with IKFZ1 in the BAF complex. In muscle cells, the BAF complex also contains DPF3. Component of the BAF53 complex, at least composed of BAF53A, RUVBL1, SMARCA4/BRG1/BAF190A, and TRRAP, which preferentially acetylates histone H4 (and H2A) within nucleosomes. Component of the WINAC complex, at least composed of SMARCA2, SMARCA4, SMARCB1, SMARCC1, SMARCC2, SMARCD1, SMARCE1, ACTL6A, BAZ1B/WSTF, ARID1A, SUPT16H, CHAF1A and TOP2B. Component of the CREST-BRG1 complex, at least composed of SMARCA4/BRG1/BAF190A, SS18L1/CREST, HDAC1, RB1 and SP1. Interacts with (via the bromodomain) with TERT; the interaction regulates Wnt-mediated signaling. Component of neural progenitors-specific chromatin remodeling complex (npBAF complex) composed of at least, ARID1A/BAF250A or ARID1B/BAF250B, SMARCD1/BAF60A, SMARCD3/BAF60C, SMARCA2/BRM/BAF190B, SMARCA4/BRG1/BAF190A, SMARCB1/BAF47, SMARCC1/BAF155, SMARCE1/BAF57, SMARCC2/BAF170, PHF10/BAF45A, ACTL6A/BAF53A and actin. Component of neuron-specific chromatin remodeling complex (nBAF complex) composed of at least, ARID1A/BAF250A or ARID1B/BAF250B, SMARCD1/BAF60A, SMARCD3/BAF60C, SMARCA2/BRM/BAF190B, SMARCA4/BRG1/BAF190A, SMARCB1/BAF47, SMARCC1/BAF155, SMARCE1/BAF57, SMARCC2/BAF170, DPF1/BAF45B, DPF3/BAF45C, ACTL6B/BAF53B and actin. Interacts with PHF10/BAF45A. Interacts with ZEB1 (via N-terminus) By similarity. Ref.5 |
| Subcellular location | Nucleus By similarity. |
| Sequence similarities | Belongs to the SNF2/RAD54 helicase family. Contains 1 bromo domain. Contains 1 helicase ATP-binding domain. Contains 1 helicase C-terminal domain. Contains 1 HSA domain. Contains 1 QLQ domain. |
Ontologies
Binary interactions
With | Entry | #Exp. | IntAct | Notes |
|---|---|---|---|---|
| RB1 | P06400 | 4 | EBI-1210244,EBI-491274 | From a different organism. |
| Rb1 | P13405 | 3 | EBI-1210244,EBI-971782 |
Alternative products
| This entry describes 2 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q3TKT4-1) This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Isoform 2 (identifier: Q3TKT4-2) The sequence of this isoform differs from the canonical sequence as follows: 1441-1441: D → DS |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 1613 | 1613 | Transcription activator BRG1 | PRO_0000391343 | |||||
Regions | |||||||||
| Domain | 171 – 206 | 36 | QLQ | ||||||
| Domain | 460 – 532 | 73 | HSA | ||||||
| Domain | 766 – 931 | 166 | Helicase ATP-binding | ||||||
| Domain | 1084 – 1246 | 163 | Helicase C-terminal | ||||||
| Domain | 1443 – 1513 | 71 | Bromo | ||||||
| Nucleotide binding | 779 – 786 | 8 | ATP Potential | ||||||
| Region | 1 – 282 | 282 | Necessary for interaction with SS18L1/CREST By similarity | ||||||
| Motif | 881 – 884 | 4 | DEGH box By similarity | ||||||
| Compositional bias | 4 – 344 | 341 | Pro-rich | ||||||
| Compositional bias | 663 – 672 | 10 | Poly-Glu | ||||||
| Compositional bias | 1252 – 1370 | 119 | Glu-rich | ||||||
| Compositional bias | 1531 – 1555 | 25 | Glu-rich | ||||||
Sites | |||||||||
| Site | 1505 – 1506 | 2 | Required for binding to 'Lys-15'-acetylated histone 3 By similarity | ||||||
Amino acid modifications | |||||||||
| Modified residue | 11 | 1 | Phosphothreonine By similarity | ||||||
| Modified residue | 188 | 1 | N6-acetyllysine By similarity | ||||||
| Modified residue | 353 | 1 | Phosphothreonine By similarity | ||||||
| Modified residue | 609 | 1 | Phosphothreonine By similarity | ||||||
| Modified residue | 610 | 1 | Phosphoserine Ref.6 | ||||||
| Modified residue | 613 | 1 | Phosphoserine Ref.6 | ||||||
| Modified residue | 695 | 1 | Phosphoserine Ref.4 Ref.7 | ||||||
| Modified residue | 699 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 1349 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 1419 | 1 | Phosphoserine Ref.8 | ||||||
| Modified residue | 1536 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 1541 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 1552 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 1593 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 1597 | 1 | Phosphoserine By similarity | ||||||
Natural variations | |||||||||
| Alternative sequence | 1441 | 1 | D → DS in isoform 2. | VSP_038696 | |||||
Experimental info | |||||||||
| Sequence conflict | 1355 | 1 | W → WLKT in BAE36034. Ref.1 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "The transcriptional landscape of the mammalian genome." Carninci P., Kasukawa T., Katayama S., Gough J., Frith M.C., Maeda N., Oyama R., Ravasi T., Lenhard B., Wells C., Kodzius R., Shimokawa K., Bajic V.B., Brenner S.E., Batalov S., Forrest A.R., Zavolan M., Davis M.J. Hayashizaki Y.Science 309:1559-1563(2005) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS 1 AND 2). Strain: C57BL/6J. Tissue: Placenta. |
| [2] | Mural R.J., Adams M.D., Myers E.W., Smith H.O., Venter J.C. Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [3] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 2). Strain: C57BL/6. Tissue: Brain. |
| [4] | "Protein phosphorylation and expression profiling by Yin-yang multidimensional liquid chromatography (Yin-yang MDLC) mass spectrometry." Dai J., Jin W.-H., Sheng Q.-H., Shieh C.-H., Wu J.-R., Zeng R. J. Proteome Res. 6:250-262(2007) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-695, MASS SPECTROMETRY. Tissue: Liver. |
| [5] | "An essential switch in subunit composition of a chromatin remodeling complex during neural development." Lessard J., Wu J.I., Ranish J.A., Wan M., Winslow M.M., Staahl B.T., Wu H., Aebersold R., Graef I.A., Crabtree G.R. Neuron 55:201-215(2007) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, FUNCTION OF THE NBAF AND NPBAF COMPLEXES, IDENTIFICATION BY MASS SPECTROMETRY, IDENTIFICATION IN THE NBAF AND NPBAF COMPLEXES, INTERACTION WITH PHF10. |
| [6] | "Large-scale phosphorylation analysis of mouse liver." Villen J., Beausoleil S.A., Gerber S.A., Gygi S.P. Proc. Natl. Acad. Sci. U.S.A. 104:1488-1493(2007) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-610 AND SER-613, MASS SPECTROMETRY. Tissue: Liver. |
| [7] | "Solid tumor proteome and phosphoproteome analysis by high resolution mass spectrometry." Zanivan S., Gnad F., Wickstroem S.A., Geiger T., Macek B., Cox J., Faessler R., Mann M. J. Proteome Res. 7:5314-5326(2008) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-695, MASS SPECTROMETRY. Tissue: Melanoma. |
| [8] | "The phagosomal proteome in interferon-gamma-activated macrophages." Trost M., English L., Lemieux S., Courcelles M., Desjardins M., Thibault P. Immunity 30:143-154(2009) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-1419, MASS SPECTROMETRY. Tissue: Macrophage. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AK147285 mRNA. Translation: BAE27821.1. AK160825 mRNA. Translation: BAE36034.1. AK166837 mRNA. Translation: BAE39059.1. BC079560 mRNA. Translation: AAH79560.1. CH466522 Genomic DNA. Translation: EDL25209.1. |
| IPI | IPI00875789. IPI00955124. |
| RefSeq | NP_001167549.1. NM_001174078.1. NP_001167550.1. NM_001174079.1. NP_035547.2. NM_011417.3. |
| UniGene | Mm.286593. |
3D structure databases | |
| ProteinModelPortal | Q3TKT4. |
| SMR | Q3TKT4. Positions 749-1221, 1416-1535. |
| ModBase | Search... |
Protein-protein interaction databases | |
| DIP | DIP-40650N. DIP-59249N. |
| IntAct | Q3TKT4. 11 interactions. |
| MINT | MINT-1958721. |
| STRING | 10090.ENSMUSP00000096547. |
PTM databases | |
| PhosphoSite | Q3TKT4. |
Proteomic databases | |
| PaxDb | Q3TKT4. |
| PRIDE | Q3TKT4. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENSMUST00000034707; ENSMUSP00000034707; ENSMUSG00000032187. ENSMUST00000098948; ENSMUSP00000096547; ENSMUSG00000032187. ENSMUST00000174008; ENSMUSP00000133922; ENSMUSG00000032187. |
| GeneID | 20586. |
| KEGG | mmu:20586. |
| UCSC | uc009omd.2. mouse. uc009ome.2. mouse. |
Organism-specific databases | |
| CTD | 6597. |
| MGI | MGI:88192. Smarca4. |
Phylogenomic databases | |
| eggNOG | COG0553. |
| GeneTree | ENSGT00550000074659. |
| HOGENOM | HOG000172363. |
| HOVERGEN | HBG056636. |
| InParanoid | Q3TUD7. |
| KO | K11647. |
| OrthoDB | EOG418BMJ. |
Gene expression databases | |
| ArrayExpress | Q3TKT4. |
| Bgee | Q3TKT4. |
| Genevestigator | Q3TKT4. |
Family and domain databases | |
| Gene3D | 1.20.920.10. 1 hit. |
| InterPro | IPR006576. BRK_domain. IPR001487. Bromodomain. IPR018359. Bromodomain_CS. IPR014978. Gln-Leu-Gln_QLQ. IPR013999. HAS_subgr. IPR014012. Helicase/SANT-assoc_DNA-bd. IPR014001. Helicase_ATP-bd. IPR001650. Helicase_C. IPR006562. HSA. IPR000330. SNF2_N. [Graphical view] |
| Pfam | PF07533. BRK. 1 hit. PF00439. Bromodomain. 1 hit. PF00271. Helicase_C. 1 hit. PF07529. HSA. 1 hit. PF08880. QLQ. 1 hit. PF00176. SNF2_N. 1 hit. [Graphical view] |
| PRINTS | PR00503. BROMODOMAIN. |
| SMART | SM00592. BRK. 1 hit. SM00297. BROMO. 1 hit. SM00487. DEXDc. 1 hit. SM00490. HELICc. 1 hit. SM00573. HSA. 1 hit. SM00951. QLQ. 1 hit. [Graphical view] |
| SUPFAM | SSF47370. Bromodomain. 1 hit. |
| PROSITE | PS00633. BROMODOMAIN_1. 1 hit. PS50014. BROMODOMAIN_2. 1 hit. PS51192. HELICASE_ATP_BIND_1. 1 hit. PS51194. HELICASE_CTER. 1 hit. PS51204. HSA. 1 hit. PS51666. QLQ. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| NextBio | 298883. |
| SOURCE | Search... |
Entry information
| Entry name | SMCA4_MOUSE | ||||||||
| Accession | Primary (citable) accession number: Q3TKT4 Secondary accession number(s): Q3TUD7, Q6AXG8 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
Relevant documents
| MGD cross-references Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
