Recombinant Human AURKB Protein (A2-A344), Tag Free

• Cat.No.: AURKB-1112H
• Product Overview: Recombinant Human GG-AURB(A2-A344 end) Protein was expressed in Insect cell.

Specification

• Description: 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). A positive feedback between HASPIN and AURKB contributes to CPC localization. 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. Acts as an inhibitor of CGAS during mitosis: catalyzes phosphorylation of the N-terminus of CGAS during the G2-M transition, blocking CGAS liquid phase separation and activation, and thereby preventing CGAS-induced autoimmunity.
• Source: Insect cell
• Species: Human
• Tag: Non
• Form: Liquid
• Protein length: A2-A344
• Endotoxin: < 0.01 EU per μg of the protein
• Purity: 90%
• Stability: Samples are stable for up to twelve months from date of receipt at -20 to -80 centigrade.
• Storage: Store it under sterile conditions at -20 to -80 centigrade. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
• Storage Buffer: Supplied as sterile 50 mM Tris-HCl (pH7.5), 200 mM NaCl, 20% glycerol
• Shipping: It is shipped out with blue ice.

Gene Information

• Gene Name: AURKB aurora kinase B [ Homo sapiens (human) ]
• Official Symbol: AURKB
• Synonyms: AURKB; aurora kinase B; serine/threonine kinase 12, STK12; Aik2; AIM 1; ARK2; AurB; aurora 1; aurora B; IPL1; PPP1R48; protein phosphatase 1; regulatory subunit 48; STK5; ARK-2; STK-1; aurora-1; aurora-B; aurora kinase B-Sv1; aurora kinase B-Sv2; aurora-related kinase 2; serine/threonine kinase 12; aurora/IPL1-related kinase 2; serine/threonine-protein kinase 5; serine/threonine-protein kinase 12; serine/threonine-protein kinase aurora-B; protein phosphatase 1, regulatory subunit 48; aurora- and Ipl1-like midbody-associated protein 1; AIK2; AIM1; AIM-1; STK12; aurkb-sv1; aurkb-sv2
• Gene ID: 9212
• mRNA Refseq: NM_001256834
• Protein Refseq: NP_001243763
• MIM: 604970
• UniProt ID: Q96GD4

Reviews

12/28/2021

AURKB's exceptional repeatability allows for its reliable use in a range of applications, making it a top choice for researchers.

08/31/2021

Very pure and can be used with confidence.

02/03/2019

The quality is very high and very reliable.

Q&As

What are the interactions between AURKB protein and cell cycle regulatory proteins?

AURKB protein interacts with a variety of cell cycle regulatory proteins, including Cdk1, INCENP, Survivin, etc., to regulate the progression of cell mitosis.

What are the intracellular substrates of AURKB protein?

The substrates of AURKB include chromosome-associated proteins, cytoskeletal proteins and other cell cycle regulatory proteins. Phosphorylation modification of these substrates regulates chromosome segregation and cell division during mitosis.

What is the cellular localization of AURKB protein?

AURKB protein is mainly located in the nucleus and cytoplasm and participates in the regulation of cell mitosis.

What is the expression pattern of AURKB gene?

The expression of the AURKB gene is regulated by cell cycle regulators and other transcription factors and is mainly expressed in the mitotic phase of cells.

How does AURKB protein activity work?

The activity of AURKB protein is regulated by a variety of factors, including phosphorylation modification, protein interaction and cell cycle regulation.

At what stage of cell mitosis does AURKB protein reach its peak expression?

The protein reaches its peak expression during early and metaphase of cell mitosis and is closely associated with chromosome segregation and cell division.