Q8TDC3 (BRSK1_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 108.
History...
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Serine/threonine-protein kinase BRSK1 EC=2.7.11.1 Alternative name(s): Brain-selective kinase 1 EC=2.7.11.26 Brain-specific serine/threonine-protein kinase 1 Short name=BR serine/threonine-protein kinase 1 Serine/threonine-protein kinase SAD-B Synapses of Amphids Defective homolog 1 Short name=SAD1 homolog Short name=hSAD1 | ||||
| Gene names |
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| Organism | Homo sapiens (Human) [Reference proteome] | ||||
| Taxonomic identifier | 9606 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo![]() |
Protein attributes
| Sequence length | 778 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Serine/threonine-protein kinase that plays a key role in polarization of neurons and centrosome duplication. Phosphorylates CDC25B, CDC25C, MAPT/TAU, RIMS1, TUBG1, TUBG2 and WEE1. Following phosphorylation and activation by STK11/LKB1, acts as a key regulator of polarization of cortical neurons, probably by mediating phosphorylation of microtubule-associated proteins such as MAPT/TAU at 'Thr-529' and 'Ser-579'. Also regulates neuron polarization by mediating phosphorylation of WEE1 at 'Ser-642' in post-mitotic neurons, leading to down-regulate WEE1 activity in polarized neurons. In neurons, localizes to synaptic vesicles and plays a role in neurotransmitter release, possibly by phosphorylating RIMS1. Also acts as a positive regulator of centrosome duplication by mediating phosphorylation of gamma-tubulin (TUBG1 and TUBG2) at 'Ser-131', leading to translocation of gamma-tubulin and its associated proteins to the centrosome. Involved in the UV-induced DNA damage checkpoint response, probably by inhibiting CDK1 activity through phosphorylation and activation of WEE1, and inhibition of CDC25B and CDC25C. Ref.1 Ref.2 Ref.12 Ref.13 |
| Catalytic activity | ATP + a protein = ADP + a phosphoprotein. Ref.13 ATP + [tau protein] = ADP + [tau protein] phosphate. Ref.13 |
| Cofactor | Magnesium By similarity. |
| Enzyme regulation | Activated by phosphorylation on Thr-189 by STK11/LKB1. Ref.1 |
| Subcellular location | Cytoplasm. Nucleus. Cytoplasm › cytoskeleton › centrosome By similarity. Cell junction › synapse By similarity. Note: Localizes to synaptic vesicles in neurons By similarity. Nuclear in the absence of DNA damage. Translocated to the nucleus in response to UV- or MMS-induced DNA damage. Ref.2 |
| Tissue specificity | Widely expressed, with highest levels in brain and testis. Protein levels remain constant throughout the cell cycle. Ref.2 |
| Post-translational modification | Phosphorylated at Thr-189 by STK11/LKB1 in complex with STE20-related adapter-alpha (STRADA) pseudo kinase and CAB39. Not phosphorylated at Thr-189 by CaMKK2. In contrast, it is phosphorylated and activated by CaMKK1. May be inactivated via dephosphorylation of Thr-189 by PP2C. Ref.1 Ref.10 Ref.11 |
| Sequence similarities | Belongs to the protein kinase superfamily. CAMK Ser/Thr protein kinase family. SNF1 subfamily. Contains 1 protein kinase domain. Contains 1 UBA domain. |
| Sequence caution | The sequence AAH16681.1 differs from that shown. Reason: Erroneous initiation. Translation N-terminally extended. |
Ontologies
Alternative products
| This entry describes 3 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q8TDC3-1) Also known as: SADB-Long; L; 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: Q8TDC3-2) The sequence of this isoform differs from the canonical sequence as follows: 1-26: MSSGAKEGGGGSPAYHLPHPHPHPPQ → MVAGLTLGKGPESPDGDVSVPERKDEVAGGGGEEEEAEERGR | ||||||
| Isoform 3 (identifier: Q8TDC3-3) Also known as: SADB-short; S; The sequence of this isoform differs from the canonical sequence as follows: 344-778: Missing. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 778 | 778 | Serine/threonine-protein kinase BRSK1 | PRO_0000085669 | |||||
Regions | |||||||||
| Domain | 34 – 285 | 252 | Protein kinase | ||||||
| Domain | 314 – 356 | 43 | UBA | ||||||
| Nucleotide binding | 40 – 48 | 9 | ATP By similarity | ||||||
| Compositional bias | 492 – 540 | 49 | Pro-rich | ||||||
Sites | |||||||||
| Active site | 156 | 1 | Proton acceptor By similarity | ||||||
| Binding site | 63 | 1 | ATP By similarity | ||||||
Amino acid modifications | |||||||||
| Modified residue | 189 | 1 | Phosphothreonine; by LKB1 Ref.1 Ref.10 | ||||||
| Modified residue | 447 | 1 | Phosphoserine | ||||||
| Modified residue | 508 | 1 | Phosphoserine | ||||||
| Modified residue | 563 | 1 | Phosphoserine | ||||||
Natural variations | |||||||||
| Alternative sequence | 1 – 26 | 26 | MSSGA…PHPPQ → MVAGLTLGKGPESPDGDVSV PERKDEVAGGGGEEEEAEER GR in isoform 2. | VSP_008158 | |||||
| Alternative sequence | 344 – 778 | 435 | Missing in isoform 3. | VSP_041742 | |||||
| Natural variant | 303 | 1 | R → W in a gastric adenocarcinoma sample; somatic mutation. Ref.14 | VAR_040394 | |||||
| Natural variant | 319 | 1 | V → I in a lung large cell carcinoma sample; somatic mutation. Ref.14 | VAR_040395 | |||||
| Natural variant | 391 | 1 | G → E in a metastatic melanoma sample; somatic mutation. Ref.14 | VAR_040396 | |||||
| Natural variant | 531 | 1 | T → N. Ref.14 Corresponds to variant rs55892637 [ dbSNP | Ensembl ]. | VAR_040397 | |||||
| Natural variant | 749 | 1 | G → S. Ref.14 | VAR_040398 | |||||
| Natural variant | 764 | 1 | P → A. Ref.14 Corresponds to variant rs55796422 [ dbSNP | Ensembl ]. | VAR_040399 | |||||
Experimental info | |||||||||
| Mutagenesis | 59 | 1 | K → A: Loss of kinase activity. Ref.2 | ||||||
| Mutagenesis | 189 | 1 | T → A: Prevents phosphorylation and activation by STK11/LKB1 complex. Ref.1 | ||||||
| Mutagenesis | 327 | 1 | G → A: Abolishes activation of kinase activity. Ref.10 | ||||||
| Sequence conflict | 762 | 1 | G → A in AAH16681. Ref.9 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "LKB1 is a master kinase that activates 13 kinases of the AMPK subfamily, including MARK/PAR-1." Lizcano J.M., Goeransson O., Toth R., Deak M., Morrice N.A., Boudeau J., Hawley S.A., Udd L., Maekelae T.P., Hardie D.G., Alessi D.R. EMBO J. 23:833-843(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2), FUNCTION, ENZYME REGULATION, PHOSPHORYLATION AT THR-189, MUTAGENESIS OF THR-189. |
| [2] | "Human SAD1 kinase is involved in UV-induced DNA damage checkpoint function." Lu R., Niida H., Nakanishi M. J. Biol. Chem. 279:31164-31170(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), FUNCTION, SUBCELLULAR LOCATION, TISSUE SPECIFICITY, MUTAGENESIS OF LYS-59. Tissue: Testis. |
| [3] | "SAD: a presynaptic kinase associated with synaptic vesicles and the active zone cytomatrix that regulates neurotransmitter release." Inoue E., Mochida S., Takagi H., Higa S., Deguchi-Tawarada M., Takao-Rikitsu E., Inoue M., Yao I., Takeuchi K., Kitajima I., Setou M., Ohtsuka T., Takai Y. Neuron 50:261-275(2006) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1). |
| [4] | "SADB phosphorylation of gamma-tubulin regulates centrosome duplication." Alvarado-Kristensson M., Rodriguez M.J., Silio V., Valpuesta J.M., Carrera A.C. Nat. Cell Biol. 11:1081-1092(2009) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 3). |
| [5] | She X.Y., Yu L., Guo J.H. Submitted (FEB-2002) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS 1 AND 2). Tissue: Brain. |
| [6] | "The DNA sequence and biology of human chromosome 19." Grimwood J., Gordon L.A., Olsen A.S., Terry A., Schmutz J., Lamerdin J.E., Hellsten U., Goodstein D., Couronne O., Tran-Gyamfi M., Aerts A., Altherr M., Ashworth L., Bajorek E., Black S., Branscomb E., Caenepeel S., Carrano A.V. Lucas S.M.Nature 428:529-535(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [7] | "The full-ORF clone resource of the German cDNA consortium." Bechtel S., Rosenfelder H., Duda A., Schmidt C.P., Ernst U., Wellenreuther R., Mehrle A., Schuster C., Bahr A., Bloecker H., Heubner D., Hoerlein A., Michel G., Wedler H., Koehrer K., Ottenwaelder B., Poustka A., Wiemann S., Schupp I. BMC Genomics 8:399-399(2007) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 35-778. Tissue: Brain. |
| [8] | "Prediction of the coding sequences of unidentified human genes. XX. The complete sequences of 100 new cDNA clones from brain which code for large proteins in vitro." Nagase T., Nakayama M., Nakajima D., Kikuno R., Ohara O. DNA Res. 8:85-95(2001) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 64-778. Tissue: Brain. |
| [9] | "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] OF 287-778. Tissue: Lymph. |
| [10] | "Investigating the regulation of brain-specific kinases 1 and 2 by phosphorylation." Bright N.J., Carling D., Thornton C. J. Biol. Chem. 283:14946-14954(2008) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION AT THR-189, MUTAGENESIS OF GLY-327. |
| [11] | "Calmodulin-dependent protein kinase kinase-beta activates AMPK without forming a stable complex: synergistic effects of Ca2+ and AMP." Fogarty S., Hawley S.A., Green K.A., Saner N., Mustard K.J., Hardie D.G. Biochem. J. 426:109-118(2010) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION. |
| [12] | "Persistence of the cell-cycle checkpoint kinase Wee1 in SadA- and SadB-deficient neurons disrupts neuronal polarity." Muller M., Lutter D., Puschel A.W. J. Cell Sci. 123:286-294(2010) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION. |
| [13] | "Phosphorylation of microtubule-associated protein tau by AMPK-related kinases." Yoshida H., Goedert M. J. Neurochem. 120:165-176(2012) [PubMed] [Europe PMC] [Abstract] Cited for: CATALYTIC ACTIVITY, FUNCTION IN MAPT PHOSPHORYLATION. |
| [14] | "Patterns of somatic mutation in human cancer genomes." Greenman C., Stephens P., Smith R., Dalgliesh G.L., Hunter C., Bignell G., Davies H., Teague J., Butler A., Stevens C., Edkins S., O'Meara S., Vastrik I., Schmidt E.E., Avis T., Barthorpe S., Bhamra G., Buck G. Stratton M.R.Nature 446:153-158(2007) [PubMed] [Europe PMC] [Abstract] Cited for: VARIANTS [LARGE SCALE ANALYSIS] TRP-303; ILE-319; GLU-391; ASN-531; SER-749 AND ALA-764. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AY458602 mRNA. Translation: AAS10354.1. AY505124 mRNA. Translation: AAS86442.1. HQ830199 mRNA. Translation: ADX95745.1. AF479826 mRNA. Translation: AAL87697.1. AF479827 mRNA. Translation: AAL87698.1. AC008974 Genomic DNA. No translation available. AC020922 Genomic DNA. No translation available. AL831945 mRNA. Translation: CAD38595.1. AL834275 mRNA. Translation: CAD38950.2. AB058714 mRNA. Translation: BAB47440.1. BC016681 mRNA. Translation: AAH16681.1. Different initiation. |
| IPI | IPI00148020. IPI00185438. IPI01025701. |
| RefSeq | NP_115806.1. NM_032430.1. |
| UniGene | Hs.182081. |
3D structure databases | |
| ProteinModelPortal | Q8TDC3. |
| SMR | Q8TDC3. Positions 18-355. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | Q8TDC3. 1 interaction. |
| STRING | 9606.ENSP00000310649. |
PTM databases | |
| PhosphoSite | Q8TDC3. |
Polymorphism databases | |
| DMDM | 34395684. |
Proteomic databases | |
| PaxDb | Q8TDC3. |
| PRIDE | Q8TDC3. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000309383; ENSP00000310649; ENSG00000160469. ENST00000585418; ENSP00000467357; ENSG00000160469. ENST00000590333; ENSP00000468190; ENSG00000160469. |
| GeneID | 84446. |
| KEGG | hsa:84446. |
| UCSC | uc002qkf.3. human. uc002qkg.3. human. uc021vbs.1. human. |
Organism-specific databases | |
| CTD | 84446. |
| GeneCards | GC19P055795. |
| H-InvDB | HIX0015461. |
| HGNC | HGNC:18994. BRSK1. |
| HPA | HPA021212. |
| MIM | 609235. gene. |
| neXtProt | NX_Q8TDC3. |
| PharmGKB | PA134888976. |
| HUGE | Search... |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | COG0515. |
| HOVERGEN | HBG007240. |
| InParanoid | Q8TDC3. |
| KO | K08796. |
| OMA | GRHAQYV. |
| OrthoDB | EOG479F6K. |
Gene expression databases | |
| ArrayExpress | Q8TDC3. |
| Bgee | Q8TDC3. |
| CleanEx | HS_BRSK1. |
| Genevestigator | Q8TDC3. |
| GermOnline | ENSG00000160469. Homo sapiens. |
Family and domain databases | |
| InterPro | IPR011009. Kinase-like_dom. IPR000719. Prot_kinase_cat_dom. IPR017441. Protein_kinase_ATP_BS. IPR002290. Ser/Thr_dual-sp_kinase_dom. IPR008271. Ser/Thr_kinase_AS. IPR015940. UBA/transl_elong_EF1B_N_euk. [Graphical view] |
| Pfam | PF00069. Pkinase. 1 hit. [Graphical view] |
| SMART | SM00220. S_TKc. 1 hit. [Graphical view] |
| SUPFAM | SSF56112. Kinase_like. 1 hit. |
| PROSITE | PS00107. PROTEIN_KINASE_ATP. 1 hit. PS50011. PROTEIN_KINASE_DOM. 1 hit. PS00108. PROTEIN_KINASE_ST. 1 hit. PS50030. UBA. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| BindingDB | Q8TDC3. |
| ChEMBL | CHEMBL5650. |
| ChiTaRS | BRSK1. human. |
| GenomeRNAi | 84446. |
| NextBio | 74213. |
| SOURCE | Search... |
Entry information
| Entry name | BRSK1_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q8TDC3 Secondary accession number(s): F1DG44 Q96JL4 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
| Disclaimer | Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. | ||||||||
Relevant documents
| Human and mouse protein kinases Human and mouse protein kinases: classification and index |
| Human chromosome 19 Human chromosome 19: entries, gene names and cross-references to MIM |
| Human entries with polymorphisms or disease mutations List of human entries with polymorphisms or disease mutations |
| Human polymorphisms and disease mutations Index of human polymorphisms and disease mutations |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
