Protein
G2/mitotic-specific cyclin-B3
Organism
Drosophila melanogaster
Function
Cyclins are positive regulatory subunits of the cyclin-dependent kinases (CDKs), and thereby play an essential role in the control of the cell cycle, notably via their destruction during cell division. Probably functions redundantly with other cyclins in regulation of cell cycle. Its presence may be required to delay a deadline for completing cytokinesis that is ordinary imposed by nuclear envelope reformation. Degradation of CycB and CycB3 promote cytokinesis furrow initiation and ingression. Required with CycB for female fertility.
Similarity
Belongs to the cyclin family. Cyclin AB subfamily.
Sequence
MAPTKATTRAAITSGHHQLQQAVNPILGALGAATRKGLTRRAAATGNIDPNVENMQTRAKRKADHSPIKNDKIKRSALGNLTNNVKIMTLHPAQDEEQSGVGKKPTAQQLQALMDAKKQENLSVNVFGASKMTTRASSKVEDSVENCHKVLDKLEEALARPKPRPKAVPAAKKTVLGEVQLPAMPNPMQIPVLLPPTHNLAAPQVAAVKPVRRISNDFNKTEDSLYMSALEDVSSCDSMRLSGNFEAARRRSAKLQQKTEQQPQPLLLTLPETAPSQVVPIPPVPEEVEDFDRKNWDDPFQVSHYAMDIFNYLKVREAEFPIADYMPRQIHLTTWMRTLLVDWMVEVQETFELNHETLYLAVKIVDLYLCREVINKEKLQLLGAAAFFIACKYDERQPPLIEDFLYICDGAYNHDELVRMERETLRVIKYDLGIPLSYRFLRRYARCAKVPMPTLTLARYILELSLMDYANISFSDSQMASAALFMALRMHGGPGQLDKQTWTSTLIYYTGYQLADFAEIVTALNAGLHRKPRATIKTIRNKYSHKIFHEVAKVPLLTNQELFQGNLDLNESNLS