Mki67
entrez
17345
canonical
uniprot
E9PVX6
canonical
ensembl
ENSMUSG00000031004
resolver
ensp
ENSMUSP00000033310
resolver
ensp
ENSMUSP00000290817
resolver
genesymbol
Mki67
resolver
uniprot
Q61769
resolver
uniprot
Q7TSF6
resolver
uniprot_entry
KI67_MOUSE
resolver
uniprot_sec
Q61769
resolver
uniprot_sec
Q7TSF6
resolver
amino_acid_sequence
MASSAHLVTIKRSGDDGAHFPLSLSSCLFGRSIECDIRIQLPVVSKRHCKIEVKEQEAILYNFSSTNPTQVNGVTIDEPVRLRHGDIITIIDRSFRYEDGNHEDGSKPTEFPGKSLGKEPSRRASRDSFCADPDGEGQDTKASKMTASRRSFVYAKGLSADSPASDGSKNSVSQDSSGHVEQHTGRNIVEPTSGDLFKKSRSTGSSYREPKSSPTQSLSNSNEKESPFEKLYQSMKEELDVKSQKSCRKSEPQPDRAAEESRETQLLVSGRARAKSSGSTPVTAASSPKVGKIWTERWRGGMVPVQTSTETAKMKTPVRHSQQLKDEDSRVTGRRHSVNLDEGESAQAVHKTVTPGKLATRNQAAVEAGDVASPADTPEHSSSKKRSIPAKVEAPSAETQKRLSLTQRLVPGEKKTPKGSFSKPEKLATAAEQTCSGLPGLSSVDISNFGDSINKSEGMPMKRRRVSFGGHLRPELFDENLPPNTPLKRGETPTKRKSLGTHSPAVLKTIIKERPQSPGKQESPGITPPRTNDQRRRSGRTSSGSKFLCETDIPKKAGRKSGNLPAKRASISRSQHGILQMICSKRRSGASEANLIVAKSWADVVKLGVKQTQTKVAKHVPQKQTSKRQRRPSTPKKPTSNLHNQFTTGHANSPCTIVVGRAQIEKVSVPARPYKMLNNLMLNRKVDFSEDLSGLTEMFKTPVKEKQQQMSDTGSVLSNSANLSERQLQVTNSGDIPEPITTEILGEKVLSSTRNAAKQQSDRYSASPTLRRRSIKHENTVQTPKNVHNITDLEKKTPVSETEPLKTASSVSKLRRSRELRHTLVETMNEKTEAVLAENTTARHLRGTFREQKVDQQVQDNENAPQRCKESGELSEGSEKTSARRSSARKQKPTKDLLGSQMVTQTADYAEELLSQGQGTIQNLEESMHMQNTSISEDQGITEKKVNIIVYATKEKHSPKTPGKKAQPLEGPAGLKEHFETPNPKDKPITEDRTRVLCKSPQVTTENITTNTKPQTSTSGKKVDMKEESSALTKRIHMPGESRHNPKILKLECEDIKALKQSENEMLTSTVNGSKRTLEKSKKKAQPLEDLTCFQELFISPVPTNIIKKIPSKSPHTQPVRTPASTKRLSKTGLSKVDVRQEPSTLGKRTKSPGRAPGTPAPVQEENDSTAFMETPKQKLDFAGNSSGSKRRSRTSKNRSQPLEDLDGFQELFQTPAGASDSVTVEESAKISLESSQAEPVKTPASTKRRSKMSLMKVDMKELSILEKQTQSRGRDAGTPAPMQEGNGTTAIMETPKQKLDFTGNSTGHKRRPRTPKIRAQPLEDLDGFQELFQTPAGANDSVTVEESAKMSLESSQAEPVKTPASTKRLSKTDLSKVDVREDPSILGKKTKSPGRAPGTPAPVQEENDCTAYMETPKQKLESIENLTGLRKQSRTPKDITGFQDSFQIPDHANGPLVVVKTKKMFFNSPQPESAITRKSRERQSRASISKIDVKEELLESEEHLQLGEGVDTFQVSTNKVIRSSRKPAKRKLDSTAGMPNSKRMRCSSKDNTPCLEDLNGFQELFQMPGYANDSLTTGISTMLARSPQLGPVRTQINKKSLPKIILRKMDVTEEISGLWKQSLGRVHTTQEQEDNAIKAIMEIPKETLQTAADGTRLTRQPQTPKEKVQPLEDHSVFQELFQTSRYCSDPLIGNKQTRMSLRSPQPGFVRTPRTSKRLAKTSVGNIAVREKISPVSLPQCATGEVVHIPIGPEDDTENKGVKESTPQTLDSSASRTVSKRQQGAHEERPQFSGDLFHPQELFQTPASGKDPVTVDETTKIALQSPQPGHIINPASMKRQSNMSLRKDMREFSILEKQTQSRGRDAGTPAPMQEENGTTAIMETPKQKLDFIGNSTGHKRRPRTPKNRAQPLEDLDGFQELFQTPAGASDPVSVEESAKISLASSQAEPVRTPASTKRRSKTGLSKVDVRQEPSTLGKRMKSLGRAPGTPAPVQEENDSTAFMETPKQKLDFTGNSSGHKRRPQTPKIRAQPLEDLDGFQELFQTPAGANDSVTVEESVKMSLESSQAEPVKTPASTKRLSKTGLSKVDVREDPSILEKKTKSPGTPAPVQEENDCTAFMETPKQKLDFTGNSSGHKRRPRTPKIRAQPLEDLDGFQELFQTPAGASDSVTVEESAKMSLESSQAKPVKTPASTKRLSKTGLSKVDVREDPSTLGKKTKSPGRAPGTPAPVQEENDSTAFMETPKQKLDFAENSSGSKRRSRTSKNRSQPLEDLDGFQELFQTPAGASNPVSVEESAKISLESSQAEPVRTRASTKRLSKTGLNKMDVREGHSPLSKSSCASQKVMQTLTLGEDHGRETKDGKVLLAQKLEPAIYVTRGKRQQRSCKKRSQSPEDLSGVQEVFQTSGHNKDSVTVDNLAKLPSSSPPLEPTDTSVTSRRQARTGLRKVHVKNELSGGIMHPQISGEIVDLPREPEGEGKVIKTRKQSVKRKLDTEVNVPRSKRQRITRAEKTLEDLPGFQELCQAPSLVMDSVIVEKTPKMPDKSPEPVDTTSETQARRRLRRLVVTEEPIPQRKTTRVVRQTRNTQKEPISDNQGMEEFKESSVQKQDPSVSLTGRRNQPRTVKEKTQPLEELTSFQEETAKRISSKSPQPEEKETLAGLKRQLRIQLINDGVKEEPTAQRKQPSRETRNTLKEPVGDSINVEEVKKSTKQKIDPVASVPVSKRPRRVPKEKAQALELAGLKGPIQTLGHTDESASDKGPTQMPCNSLQPEQVDSFQSSPRRPRTRRGKVEADEEPSAVRKTVSTSRQTMRSRKVPEIGNNGTQVSKASIKQTLDTVAKVTGSRRQLRTHKDGVQPLEVLGDSKEITQISDHSEKLAHDTSILKSTQQQKPDSVKPLRTCRRVLRASKEDPKEVLVDTRDHATLQSKSNPLLSPKRKSARDGSIVRTRALRSLAPKQEATDEKPVPEKKRAASSKRHVSPEPVKMKHLKIVSNKLESVEEQVSTVMKTEEMEAKRENPVTPDQNSRYRKKTNVKQPRPKFDASAENVGIKKNEKTMKTASQETELQNPDDGAKKSTSRGQVSGKRTCLRSRGTTEMPQPCEAEEKTSKPAAEILIKPQEEKGVSGESDVRCLRSRKTRVALDSEPKPRVTRGTKKDAKTLKEDEDIVCTKKLRTRS
uniprot
proteins
function
FUNCTION: Protein that associates with the surface of mitotic chromosomes and acts both as a chromosome repellent during early mitosis and chromosome attractant during late mitosis (PubMed:27362226). Required to maintain individual mitotic chromosomes dispersed in the cytoplasm following nuclear envelope disassembly (PubMed:27362226). During early mitosis, relocalizes from nucleoli to the chromosome surface where it forms extended brush structures that cover a substantial fraction of the chromosome surface (PubMed:27362226). The MKI67 brush structure prevents chromosomes from collapsing into a single chromatin mass by forming a steric and electrostatic charge barrier: the protein has a high net electrical charge and acts as a surfactant, dispersing chromosomes and enabling independent chromosome motility (PubMed:27362226). During mitotic anaphase, the MKI67 brush structure collapses and MKI67 switches from a chromosome repellent to a chromosome attractant to promote chromosome clustering and facilitate the exclusion of large cytoplasmic particles from the future nuclear space (By similarity). Mechanistically, dephosphorylation during mitotic exit and simultaneous exposure of a conserved basic patch induce the RNA-dependent formation of a liquid-like condensed phase on the chromosome surface, promoting coalescence of neighboring chromosome surfaces and clustering of chromosomes (By similarity). Binds premature ribosomal RNAs during anaphase; promoting liquid-liquid phase separation. Binds DNA, with a preference for supercoiled DNA and AT-rich DNA (By similarity). Does not contribute to the internal structure of mitotic chromosomes (PubMed:26949251). May play a role in chromatin organization; it is however unclear whether it plays a direct role in chromatin organization or whether it is an indirect consequence of its function in mitotic chromosome (PubMed:26949251). {ECO:0000250|UniProtKB:P46013, ECO:0000269|PubMed:26949251, ECO:0000269|PubMed:27362226}.
uniprot
proteins
mass_dalton
350864
uniprot
proteins
post_translational_modification
PTM: Hyperphosphorylated by CDK1 in mitosis; hyperphosphorylatiom prevents undergoing liquid-liquid phase separation (By similarity). Dephosphorylated by PPP1CC at the onset of anaphase (By similarity). Dephosphorylation by protein phosphatase 2A (PP2A) and simultaneous exposure of the positively charged patch (CP) during mitotic exit induce the RNA-dependent formation of a liquid-like condensed phase on the chromosome surface (PubMed:39003739). {ECO:0000250|UniProtKB:P46013, ECO:0000269|PubMed:39003739}.; PTM: Ubiquitinated by the APC/C complex after neuronal progenitors exit mitosis during brain development, leading to clearance from constitutive heterochromatin. {ECO:0000250|UniProtKB:P46013}.
uniprot
proteins
pubmed
12355204
uniprot
proteins
pubmed
15489334
uniprot
proteins
pubmed
19144319
uniprot
proteins
pubmed
19468303
uniprot
proteins
pubmed
21183079
uniprot
proteins
pubmed
23806337
uniprot
proteins
pubmed
26949251
uniprot
proteins
pubmed
27362226
uniprot
proteins
pubmed
39003739
uniprot
proteins
pubmed
8834799
uniprot
proteins
sequence_length
3177
uniprot
proteins
subcellular_location
SUBCELLULAR LOCATION: Chromosome {ECO:0000269|PubMed:12355204, ECO:0000269|PubMed:8834799}. Nucleus {ECO:0000269|PubMed:12355204, ECO:0000269|PubMed:8834799}. Nucleus, nucleolus {ECO:0000269|PubMed:12355204, ECO:0000269|PubMed:8834799}. Note=During early mitosis, relocalizes from nucleoli to the surface of the mitotic chromosome, the perichromosomal layer, and covers a substantial fraction of the mitotic chromosome surface (PubMed:12355204, PubMed:8834799). Associates with satellite DNA in G1 phase (By similarity). Binds tightly to chromatin in interphase, chromatin-binding decreases in mitosis when it associates with the surface of the condensed chromosomes (By similarity). Predominantly localized in the G1 phase in the perinucleolar region, in the later phases it is also detected throughout the nuclear interior, being predominantly localized in the nuclear matrix (By similarity). {ECO:0000250|UniProtKB:P46013, ECO:0000269|PubMed:12355204, ECO:0000269|PubMed:8834799}.
uniprot
proteins