About Products Protein Database Contact

DBF4

Gene
DBF4
Protein
DDK kinase regulatory subunit DBF4
Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c)
Length
704 amino acids
Function
Regulatory subunit of the CDC7-DBF4 kinase, also called DBF4-dependent kinase (DDK), which is involved in cell cycle regulation of premitotic and premeiotic chromosome replication and in chromosome segregation. DDK plays an essential role in initiating DNA replication at replication origins by phosphorylating the MCM2 and MCM4 subunits of the MCM2-7 helicase complex. DBF4 recruits the catalytic subunit CDC7 to MCM2 and to origins of replication. DDK has also postreplicative functions in meiosis. DDK phosphorylates the meiosis-specific double-strand break protein MER2 for initiation of meiotic recombination. Interacts with CDC5 during meiosis to promote double-strand breaks and monopolar spindle orientation. Inhibits CDC5 activity during mitosis through direct binding to its PBD.
Mass
80.69 kDa
Sequence
MVSPTKMIIRSPLKETDTNLKHNNGIAASTTAAGHLNVFSNDNNCNNNNTTESFPKKRSLERLELQQQQHLHEKKRARIERARSIEGAVQVSKGTGLKNVEPRVTPKELLEWQTNWKKIMKRDSRIYFDITDDVEMNTYNKSKMDKRRDLLKRGFLTLGAQITQFFDTTVTIVITRRSVENIYLLKDTDILSRAKKNYMKVWSYEKAARFLKNLDVDLDHLSKTKSASLAAPTLSNLLHNEKLYGPTDRDPRTKRDDIHYFKYPHVYLYDLWQTWAPIITLEWKPQELTNLDELPYPILKIGSFGRCPFIGDRNYDESSYKRVVKRYSRDKANKKYALQLRALFQYHADTLLNTSSVNDQTKNLIFIPHTCNDSTKSFKKWMQEKAKNFEKTELKKTDDSAVQDVRNEHADQTDEKNSILLNETETKEPPLKEEKENKQSIAEESNKYPQRKELAATPKLNHPVLATFARQETEEVPDDLCTLKTKSRQAFEIKASGAHQSNDVATSFGNGLGPTRASVMSKNMKSLSRLMVDRKLGVKQTNGNNKNYTATIATTAETSKENRHRLDFNALKKDEAPSKETGKDSAVHLETNRKPQNFPKVATKSVSADSKVHNDIKITTTESPTASKKSTSTNVTLHFNAQTAQTAQPVKKETVKNSGYCENCRVKYESLEQHIVSEKHLSFAENDLNFEAIDSLIENLRFQI

Gene
DBF4
Protein
Protein DBF4 homolog A
Organism
Cricetulus griseus
Length
676 amino acids
Function
Regulatory subunit for CDC7 which activates its kinase activity thereby playing a central role in DNA replication and cell proliferation. Required for progression of S phase. The complex CDC7-DBF4A selectively phosphorylates MCM2 subunit at 'Ser-40' and 'Ser-53' and then is involved in regulating the initiation of DNA replication during cell cycle (By similarity).
Mass
75.85 kDa
Sequence
MNSGAMRIHSKGHFQGGIQVKNEKNRPSLKSLKTDNRPEKSKCKPLWEKVFYLDLPSVTISEKLQKDIKDLGGRVEEFLSKDISYLVSNKKEAKYAQTLGQVSPVPSPESAYTAETTSPHPSHDGSSFKSPDRVCLSRGKLLAEKAVKDHDFIPANSILSNALTWGVKILHIDDIRYYIEQKKKELCSLKKSSTSVRDSGKKAGTTIQKARTGRLKKPFLKVEDVNRSYRPFYLQLTSVPSINYATHKPCSPFDIEKPSSVQKQAQPKPRPNTDGDKCGGTPVQLQLKEKRKKGYCECCLQKYEDLETHLLSEKHKNFAQSNQYQVVDDIVSKLVFDFVEYERDTPKKKRIKYSVGSFSSVSANVLKNTEPKEKLQLEPIFQKDMVESNGQLPEEIFQCEDIQCEDIQKPEQRLVLASEPMSYSSTGLKGRDEKAASMLNASEPDIKQKFTQLPPCKNEQEGILDVSEHKLIINRNDLEQRVGDSVGVPRSCVQVSHLSPENSLPQPKLTADTTHFSAKDLQEKDLHFVFGHDSDLVTLNTSKEQLTVKAGTPSCGPQQPNECDTENTDNLPCGKIQRKVRLLLGQKKKNVDPSAELDKKRTEFLPMCEDRTCGSPVQSLLDLFQTSGEKSDFLGFTSYTENSGLCDVLDVWEDENSSSLLSTFFSSPSASTFIGF

Gene
DBF4
Protein
Protein DBF4 homolog A
Organism
Homo sapiens
Length
674 amino acids
Function
Regulatory subunit for CDC7 which activates its kinase activity thereby playing a central role in DNA replication and cell proliferation. Required for progression of S phase. The complex CDC7-DBF4A selectively phosphorylates MCM2 subunit at 'Ser-40' and 'Ser-53' and then is involved in regulating the initiation of DNA replication during cell cycle.
Mass
76.858 kDa
Sequence
MNSGAMRIHSKGHFQGGIQVKNEKNRPSLKSLKTDNRPEKSKCKPLWGKVFYLDLPSVTISEKLQKDIKDLGGRVEEFLSKDISYLISNKKEAKFAQTLGRISPVPSPESAYTAETTSPHPSHDGSSFKSPDTVCLSRGKLLVEKAIKDHDFIPSNSILSNALSWGVKILHIDDIRYYIEQKKKELYLLKKSSTSVRDGGKRVGSGAQKTRTGRLKKPFVKVEDMSQLYRPFYLQLTNMPFINYSIQKPCSPFDVDKPSSMQKQTQVKLRIQTDGDKYGGTSIQLQLKEKKKKGYCECCLQKYEDLETHLLSEQHRNFAQSNQYQVVDDIVSKLVFDFVEYEKDTPKKKRIKYSVGSLSPVSASVLKKTEQKEKVELQHISQKDCQEDDTTVKEQNFLYKETQETEKKLLFISEPIPHPSNELRGLNEKMSNKCSMLSTAEDDIRQNFTQLPLHKNKQECILDISEHTLSENDLEELRVDHYKCNIQASVHVSDFSTDNSGSQPKQKSDTVLFPAKDLKEKDLHSIFTHDSGLITINSSQEHLTVQAKAPFHTPPEEPNECDFKNMDSLPSGKIHRKVKIILGRNRKENLEPNAEFDKRTEFITQEENRICSSPVQSLLDLFQTSEEKSEFLGFTSYTEKSGICNVLDIWEEENSDNLLTAFFSSPSTSTFTGF

Gene
Dbf4
Protein
Protein DBF4 homolog A
Organism
Mus musculus
Length
663 amino acids
Function
Regulatory subunit for CDC7 which activates its kinase activity thereby playing a central role DNA in replication and cell proliferation. Required for progression of S phase. The complex CDC7-DBF4A selectively phosphorylates MCM2 subunit at 'Ser-40' and 'Ser-53' and then is involved in regulating the initiation of DNA replication during cell cycle.
Mass
74.176 kDa
Sequence
MNLETMRIHSKAPLPGGIQDRNEKNRPSLKSLKADNRLEKSKYKPLWGKIFYLDLPSITICEKLQKDIKELGGRVEEFLSKDISYFVSNKKEAKYAQTLGRVSPVPSPESAYTAETTSPHPSHDGSSFKSQDRVCLSRGKLLAEKAVKDHDFIPANSILSNALSWGVKILHIDDIRYYIEQKKKALSALKKSSASGKDAGKKAGPGIQKTRTGRLKKPFLKVEDVNRCYRPFYLQLPSLPCINYFLQKPCSPFDIEKSSSVQKQAQPKLRINMDGDKCGTPVQLQLKEKRKKGYCECCLQKYEDLETHLLSEKHRNFAQSNQYQVVDDIVSQLVFDFVEYGRDTPQKKRIRYSVGSLSSVSANVLKNTAPKEKPLLEPNFQKDVGESSGHLLKPNSQYEETQKPEEKHGFASEPTTYSSAGLKGCDRKPVSMFNASEPDPEQEYAQLPLRDSTPEHQVTEGRNDGEQRVDPAPGVSQSCGQVSHLSTESNLPQPQLAADITQLSAKDLQEKGFHVVIGHASDLVALNTSKEQLTMKARTPPCSPQEPHECDTENMENLPCGKIQRKVRMLLGQQKANAEPSAELDKKRTEYLPAHEDRTCGSPVQSLLDLFQTSEEKSEFLGFTGYTENSGICDVLDIWEEENSSTLLSTFFSSPSTSAFVGF

Gene
dbf4
Protein
Protein DBF4 homolog A
Organism
Xenopus tropicalis
Length
663 amino acids
Function
Regulatory subunit for cdc7 which activates its kinase activity thereby playing a central role in DNA replication and cell proliferation. Not required during the initiation of DNA replication in egg and during early embryonic development but is required later throughout development. The complex cdc7-dbf4a phosphorylates mcm2 subunit (By similarity).
Mass
73.838 kDa
Sequence
MKSTVATVKNPTGKVQADICKPFSGKVFYLDLTSKLISEKLEKDIKELGGTVEGFLSKEISYLITSKKEAKCVKTLKYVCSVPSPEPAQNTGESSTSPGNRRLPQEGNSSKKNEKSLVSRGKSLVKKAIKEQEILPKNSILSNALNWGVKILHVEEAKRYIEKKKSSLQQVKKSQPVVKSESKHPARRKVKPQKLKSPYIKVEDCSCQYRPLYLVLPQFRSFQNTTSNYLVEVDKKADVGQKLAETKQSINKTGHVQDGANNANIKLKEQKKHGYCECCLKKYDSLESHILSPQHKNYSESAYYQVVDDLISTFEFDFVDWSKYKNGRKSVGILMLTEKYKAEGQERNEASKANTFSERVSATTPLQENTLKDPYATSCSVPPTPVCNTDPMFSLPSPVGSAELCNKKYTTDNFEQLVATSVPALCLKDNLPGSLGEREMSVVYNETKQNETIDHTMERPKIGWDASNIPSNILLYVPQKVDAVAQYANVSLKGNIHCSKLTACQAALTYGKMDPAVCDNITFPKTVNHLHNKEGHRTMDQIYPTVQSDELQSLLPDYSPSGNLHRKLKTSAQTNLADDELLCRLSHKVSVPQQNDVLNVPSETLLAMFESSEDKTEFFGFAGSCVCDPCSMDDGDNRDQAHKNLLLSLFSHTTTSGSSFLGF

Gene
dbf4
Protein
Protein DBF4 homolog A
Organism
Xenopus laevis
Length
661 amino acids
Function
Regulatory subunit for cdc7 which activates its kinase activity thereby playing a central role in DNA replication and cell proliferation. Not required during the initiation of DNA replication in egg and during early embryonic development but is required later and throughout development. The complex cdc7-dbf4a phosphorylates mcm2 subunit.
Mass
73.699 kDa
Sequence
MKSTVAAVKNPTGKVQADVCKPFTGKLFYLDLTSKLISEKLEKDIKELGGAIEGFLSKEISYLITSKKEAKCVKTLKYVCSIPSPEAAPNTGESSTSPGNRRLCQEGNSSKKNEKSLVSRGKSLVKRAIKEQEILPKNSILSNALNWGVKILHVEEAKHYIEKKKTALQQVRKSQPVVKVESKPQTRRKVKPQKLKSPYIKVEDCSCQYRPLYLVLPQFRSFQNPVSNYSVEVDKKADPGQKLPETKQSVNKTGHGQDGANNPNIKLKEQKKHGYCECCLKKYDDLESHILSPQHKNFSESAYYQVVDDLISTFDFDFVDWSKYKNGRKGVGILMLAEKSKTEGQERNEANLFVSKTHNFSERVTATTPLQENTLKDQHASPCSLPCTPACNADQMFSLPSPAGSARLCNKKYKMDSNFGQLVATPLPSFNLKDSLTGSFGGREMFVAKLNETMEPATEGPKIKWDVCNIPSNISQCIPQKVDPIAQHVNQFPNGNTHCSEMTACQAALIYENVDSAADANIKLPKTVNDLHNKEGHRATDKIYPTVQSHEYLPDYSPSGNLHRKVKTSAHRNKNKDELFCRLSHKVSVPQQEDDSKFPSETLLALFESSEDKTEFFGFAGSPAYESCSMDDGDTPDQTHKKMLLSLFPHTTTSGSSFLGF