Recombinant Mouse Aurora kinase B (Aurkb)

Code CSB-YP002458MO
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Source Yeast
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Code CSB-EP002458MO
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Source E.coli
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Code CSB-EP002458MO-B
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Source E.coli
Conjugate Avi-tag Biotinylated
E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
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Code CSB-BP002458MO
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Source Baculovirus
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Code CSB-MP002458MO
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Source Mammalian cell
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Product Details

>85% (SDS-PAGE)
Target Names
Uniprot No.
Alternative Names
Aurkb; Aik2; Aim1; Airk2; Ark2; Stk1; Stk12; Stk5; Aurora kinase B; EC; Aurora 1; Aurora- and IPL1-like midbody-associated protein 1; Aurora/IPL1-related kinase 2; ARK-2; Aurora-related kinase 2; STK-1; Serine/threonine-protein kinase 12; Serine/threonine-protein kinase 5; Serine/threonine-protein kinase aurora-B
Mus musculus (Mouse)
Expression Region
Target Protein Sequence
Protein Length
Full length protein
Tag Info
The following tags are available.
N-terminal His-tagged
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer before Lyophilization
Tris/PBS-based buffer, 6% Trehalose, pH 8.0
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Please contact us to get it.

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Target Background

Serine/threonine-protein kinase component of the chromosomal passenger complex (CPC), a complex that acts as a key regulator of mitosis. The CPC complex has essential functions at the centromere in ensuring correct chromosome alignment and segregation and is required for chromatin-induced microtubule stabilization and spindle assembly. Involved in the bipolar attachment of spindle microtubules to kinetochores and is a key regulator for the onset of cytokinesis during mitosis. Required for central/midzone spindle assembly and cleavage furrow formation. Key component of the cytokinesis checkpoint, a process required to delay abscission to prevent both premature resolution of intercellular chromosome bridges and accumulation of DNA damage: phosphorylates CHMP4C, leading to retain abscission-competent VPS4 (VPS4A and/or VPS4B) at the midbody ring until abscission checkpoint signaling is terminated at late cytokinesis. AURKB phosphorylates the CPC complex subunits BIRC5/survivin, CDCA8/borealin and INCENP. Phosphorylation of INCENP leads to increased AURKB activity. Other known AURKB substrates involved in centromeric functions and mitosis are CENPA, DES/desmin, GPAF, KIF2C, NSUN2, RACGAP1, SEPTIN1, VIM/vimentin, HASPIN and histone H3. A positive feedback loop involving HASPIN and AURKB contributes to localization of CPC to centromeres. Phosphorylation of VIM controls vimentin filament segregation in cytokinetic process, whereas histone H3 is phosphorylated at 'Ser-10' and 'Ser-28' during mitosis (H3S10ph and H3S28ph, respectively). AURKB is also required for kinetochore localization of BUB1 and SGO1. Phosphorylation of p53/TP53 negatively regulates its transcriptional activity. Key regulator of active promoters in resting B- and T-lymphocytes: acts by mediating phosphorylation of H3S28ph at active promoters in resting B-cells, inhibiting RNF2/RING1B-mediated ubiquitination of histone H2A and enhancing binding and activity of the USP16 deubiquitinase at transcribed genes.
Gene References into Functions
  1. The results propose a model in which Aurora B-mediated H2AX-phosphorylated serine 121 probably provide a platform for Aurora B autoactivation circuitry at centromeres and thus play a pivotal role in proper chromosome segregation. PMID: 27389782
  2. Data show that phosphorylated Ku70 S155 interacts with the Aurora B kinase and leads to inhibition of its activity. PMID: 27849008
  3. Loss of AURKB function affects TERF1 telomere binding and results in aberrant telomere structure. PMID: 29040668
  4. Aurkb phosphorylates Oct4(S229) during G2/M phase, leading to the dissociation of Oct4 from chromatin, whereas PP1 binds Oct4 and dephosphorylates Oct4(S229) during M/G1 transition, which resets Oct4-driven transcription for pluripotency and the cell cycle. PMID: 26880562
  5. Overexpression of Aurora B also results in a reduced DNA damage response and decreased levels of the p53 target p21(Cip1) in vitro and in vivo. PMID: 26240282
  6. Chromsome stability is on of the tumor-suppressive functions of ARF as well as regulation of Aurora B expression in tumors. PMID: 25057018
  7. Using this mutant we show for the first time that AURKC has functions that do not overlap with AURKB. These functions include regulating localized CPC activity and regulating chromosome alignment and K-MT attachments at metaphase of meiosis I (Met I). PMID: 24586209
  8. reduced accumulation of Aurora B at the inner centromere region in cells lacking Pds5B impairs its error correction function, promoting chromosome mis-segregation and aneuploidy PMID: 24141881
  9. Aurora B and Ring1B co-occupy active promoters in resting lymphocytes. PMID: 24034696
  10. These results provide a scientific rationale for investigating ABK inhibitors as a treatment for intestinal cancer PMID: 22858681
  11. FBXL2 mediates Aurora B ubiquitination and degradation within the midbody, which is sufficient to induce mitotic arrest and apoptosis. PMID: 23928698
  12. Inhibitions of Aurora B and Cyclin-dependent kinase 1 activity in vertebrate cells also have opposite effects on the timing of abscission. PMID: 23948252
  13. Aurora B represses p21(Cip1), preventing delayed DNA replication, Cdk inhibition and premature mitotic exit. PMID: 23428904
  14. Calmodulin protects Aurora B on the midbody to regulate the fidelity of cytokinesis. PMID: 23370391
  15. the BRAF/ERK axis controls Aurora B expression at the transcriptional level, likely through the transcription factor FOXM1. PMID: 22767597
  16. Results indicated that the activity of AURKB was required for regulating multiple stages of mitotic progression in the early development of mouse zygotes and was correlated with the activation of the MAPK pathway. PMID: 22314491
  17. Results establish that Bub1 has oncogenic properties and suggest that Aurora B is a critical target through which overexpressed Bub1 drives aneuploidization and tumorigenesis. PMID: 21646403
  18. Data show that aurora B is dispensable for CPC function during early cell divisions and aurora B-null embryos are normally implanted. PMID: 21613325
  19. Changes in activity of AURKB may increase risks for chromosome non-disjunction and aneuploidy in mammalian oocytes. PMID: 19778480
  20. Results show over-expression of AURKB, but not AURKA or AURKC, rescues the chromosome alignment defect suggesting that AURKB is the primary Aurora kinase responsible for regulating chromosome dynamics during meiosis in mouse oocytes. PMID: 19565641
  21. downregulation in response to genotoxic stress and interaction of E2F PMID: 12446714
  22. in spermatogonia, aurora-B first appears at chromocentres in late diplotene before the initial phosphorylation of histone H3. PMID: 12584241
  23. found normal expression and localization of Aurora-B during prophase in polyploidizing bone marrow megakaryocytes. At late anaphase, however, Aurora-B/AIM-1 is absent or mislocalized. PMID: 14751927
  24. results suggest that endomitotic MKs appropriately express functional Aurora-B kinase and related proteins in early anaphase, making a simple deficiency of this protein an unlikely explanation for polyploidy in this cell type. PMID: 15130946
  25. the perikinetochoric rings of MCAK and Aurora-B define a novel transient centromere domain at least in mouse chromosomes during meiosis. PMID: 16741559
  26. Aurora B kinase has a role in marking silent chromatin independently of the cell cycle, and targeting of Aurora B-mediated phosphorylation of H3 S10 to repressed genes could be a mechanism for epigenetic silencing of gene expression. PMID: 17948062
  27. sustained expression of Aurora-B induces tetraploidy, which, in turn, facilitates genomic instability and tumor development in a xenograft model PMID: 19332642

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Subcellular Location
Nucleus. Chromosome. Chromosome, centromere. Cytoplasm, cytoskeleton, spindle. Midbody.
Protein Families
Protein kinase superfamily, Ser/Thr protein kinase family, Aurora subfamily
Tissue Specificity
Expressed in testis, intestine and spleen. All of them are tissues that contain a large number of proliferating cells. Expressed during S phase, in a cell-cycle-dependent fashion.
Database Links
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