dbPAF Protein Information
Tag | Content | ||||||||||||||||
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dbPAF ID | dbPAF-0001927 | ||||||||||||||||
Uniprot Accession | O55099; AURKB_RAT; Q4V8N1; | ||||||||||||||||
Genbank Protein ID | NP_446201.1; XP_006246631.1; XP_008765979.1; XP_008765980.1; | ||||||||||||||||
Genbank Nucleotide ID | NM_053749.1; XM_006246569.2; XM_008767757.1; XM_008767758.1; | ||||||||||||||||
Protein Name | Aurora kinase B | ||||||||||||||||
Protein Synonyms/Alias | 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; | ||||||||||||||||
Gene Name | Aurkb | ||||||||||||||||
Gene Synonyms/Alias | Aik2;Aim1;Airk2;Ark2;Stk1;Stk12;Stk5; | ||||||||||||||||
Organism | Rattus norvegicus(Rat) | ||||||||||||||||
NCBI Taxa ID | 10116 | ||||||||||||||||
Functional Description (View all) |
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, SEPT1, VIM/vimentin, GSG2/Haspin and histone H3. A positive feedback loop involving GSG2 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 SGOL1. 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 (By similarity). | ||||||||||||||||
Phosphorylation Sites |
dbPAF PTMs: 3
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Sequence (Fasta) | MAQKENVYPW PYGSKTSQSG LNTLPQRVLR KEPAVTPAQA LMNRSNSQST AVPGQKLTEN 60 KGATALQGSQ SRQPFTIDNF EIGRPLGKGK FGNVYLAREK KSRFIVALKI LFKSQIEKEG 120 VEHQLRREIE IQAHLKHPNI LQLYNYFYDQ QRIYLILEYA PRGELYKELQ KSGTFDEQRT 180 ATIMEELSDA LMYCHKKKVI HRDIKPENLL LGLQGELKIA DFGWSVHAPS LRRKTMCGTL 240 DYLPPEMIEG RMHNEMVDLW CIGVLCYELM VGNPPFESPS HSETYRRIVK VDLKFPSSMP 300 LGAKDLISKL LKHNPSQRLP LEQVSAHPWV RANSRRVLPP SAL 344 |
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Keyword | KW-0067--ATP-binding |
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Interpro | IPR030616--Aur |
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PROSITE | PS00107--PROTEIN_KINASE_ATP |
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Pfam | PF00069--Pkinase |
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Gene Ontology | GO:0032133--C:chromosome passenger complex |