Annotations: 3QBZ

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	DBF4	e3qbzA1	A: a/b three-layered sandwiches	X: BRCT domain (From Topology)	H: BRCT domain (From Topology)	T: BRCT domain	F: DBF4	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF22437	BRCT domain (DBF4_BRCT)	BRCT domain	This entry represents the BRCT domain found in Dbf4 protein. Dbf4 is a conserved eukaryotic protein that functions as the regulatory subunit of the Dbf4-dependent kinase (DDK) complex. DDK plays essential roles in DNA replication initiation and check ...	This entry represents the BRCT domain found in Dbf4 protein. Dbf4 is a conserved eukaryotic protein that functions as the regulatory subunit of the Dbf4-dependent kinase (DDK) complex. DDK plays essential roles in DNA replication initiation and checkpoint activation. During the replication checkpoint, Saccharomyces cerevisiae Dbf4 is phosphorylated in a Rad53-dependent manner, and this, in turn, inhibits initiation of replication at late origins [1]. This entry represents the minimal region of Dbf4 required for the interaction with the checkpoint kinase Rad53 [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	DDK kinase regulatory subunit DBF4	DNA binding sequence-specific DNA binding sequence-specific double-stranded DNA binding double-stranded DNA binding binding organic cyclic compound binding nucleic acid binding DNA replication origin binding cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding DNA binding sequence-specific DNA binding sequence-specific double-stranded DNA binding double-stranded DNA binding binding organic cyclic compound binding nucleic acid binding DNA replication origin binding cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding enzyme regulator activity protein serine/threonine kinase activator activity kinase activator activity enzyme activator activity molecular function activator activity molecular function regulator activity protein kinase activator activity protein kinase regulator activity kinase regulator activity	cellular response to stimulus regulation of cellular process regulation of cell cycle phase transition response to stimulus signaling G2/M transition of mitotic cell cycle negative regulation of biological process negative regulation of cell cycle cell cycle phase transition intracellular signal transduction mitotic cell cycle negative regulation of mitotic cell cycle cell communication mitotic G2/M transition checkpoint regulation of mitotic cell cycle cellular response to stimulus regulation of cellular process regulation of cell cycle phase transition response to stimulus signaling G2/M transition of mitotic cell cycle negative regulation of biological process negative regulation of cell cycle cell cycle phase transition intracellular signal transduction mitotic cell cycle negative regulation of mitotic cell cycle cell communication mitotic G2/M transition checkpoint regulation of mitotic cell cycle mitotic DNA integrity checkpoint signaling negative regulation of cellular process negative regulation of cell cycle phase transition signal transduction cell cycle DNA replication checkpoint signaling regulation of cell cycle cell cycle process cell cycle G2/M phase transition regulation of biological process mitotic DNA replication checkpoint signaling negative regulation of mitotic cell cycle phase transition regulation of G2/M transition of mitotic cell cycle regulation of cell cycle process biological regulation DNA integrity checkpoint signaling regulation of cell cycle G2/M phase transition negative regulation of cell cycle process cell cycle checkpoint signaling regulation of mitotic cell cycle phase transition mitotic cell cycle checkpoint signaling mitotic cell cycle process negative regulation of cell cycle G2/M phase transition cellular process negative regulation of G2/M transition of mitotic cell cycle mitotic cell cycle phase transition nucleobase-containing compound metabolic process DNA-templated DNA replication DNA replication DNA replication initiation metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process sexual reproduction reproductive process meiotic cell cycle nuclear DNA replication cell cycle DNA replication meiotic cell cycle process premeiotic DNA replication cell division chromosome segregation positive regulation of organelle organization regulation of cellular component organization positive regulation of cellular component organization regulation of centromere complex assembly non-membrane-bounded organelle assembly positive regulation of biological process cellular component organization cellular component biogenesis protein-DNA complex organization regulation of protein-containing complex assembly positive regulation of protein-containing complex assembly cellular component assembly protein-containing complex assembly kinetochore organization cellular component organization or biogenesis positive regulation of cellular process organelle assembly protein-containing complex organization positive regulation of cellular component biogenesis chromosome organization protein-DNA complex assembly regulation of chromosome organization positive regulation of kinetochore assembly regulation of kinetochore assembly regulation of cellular component biogenesis regulation of organelle organization positive regulation of chromosome organization organelle organization kinetochore assembly regulation of organelle assembly centromere complex assembly positive regulation of organelle assembly negative regulation of exit from mitosis exit from mitosis mitotic nuclear division organelle fission nuclear division regulation of exit from mitosis mitotic DNA replication regulation of DNA-templated DNA replication initiation positive regulation of mitotic cell cycle DNA replication positive regulation of DNA replication regulation of mitotic DNA replication initiation regulation of primary metabolic process positive regulation of metabolic process nuclear cell cycle DNA replication initiation positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process positive regulation of nucleobase-containing compound metabolic process regulation of nuclear cell cycle DNA replication positive regulation of DNA metabolic process positive regulation of DNA-templated DNA replication regulation of metabolic process positive regulation of DNA-templated DNA replication initiation regulation of DNA replication regulation of DNA metabolic process cell cycle DNA replication initiation mitotic DNA replication initiation positive regulation of nuclear cell cycle DNA replication positive regulation of cell cycle process positive regulation of mitotic cell cycle positive regulation of DNA replication initiation regulation of mitotic cell cycle DNA replication regulation of macromolecule metabolic process positive regulation of cell cycle regulation of DNA-templated DNA replication regulation of reproductive process regulation of meiotic DNA double-strand break formation positive regulation of reproductive process meiotic DNA double-strand break formation meiosis I cell cycle process positive regulation of meiotic DNA double-strand break formation positive regulation of phosphorylation regulation of protein modification process regulation of protein phosphorylation positive regulation of protein metabolic process positive regulation of cellular metabolic process positive regulation of phosphate metabolic process positive regulation of protein modification process regulation of phosphate metabolic process phosphate-containing compound metabolic process protein metabolic process positive regulation of protein phosphorylation phosphorus metabolic process protein modification process protein phosphorylation positive regulation of phosphorus metabolic process phosphorylation cellular metabolic process regulation of protein metabolic process regulation of cellular metabolic process macromolecule modification regulation of phosphorus metabolic process regulation of phosphorylation regulation of meiosis I meiosis I meiotic nuclear division regulation of meiotic cell cycle positive regulation of nuclear division positive regulation of meiotic cell cycle regulation of meiotic nuclear division positive regulation of meiosis I regulation of nuclear division positive regulation of meiotic nuclear division	intracellular organelle centrosome microtubule organizing center intracellular anatomical structure cytoskeleton organelle intracellular non-membrane-bounded organelle cellular anatomical entity microtubule cytoskeleton non-membrane-bounded organelle chromosome, centromeric region chromosome chromosomal region cytoplasm intracellular organelle centrosome microtubule organizing center intracellular anatomical structure cytoskeleton organelle intracellular non-membrane-bounded organelle cellular anatomical entity microtubule cytoskeleton non-membrane-bounded organelle chromosome, centromeric region chromosome chromosomal region cytoplasm chromatin membrane-bounded organelle protein-containing complex catalytic complex Dbf4-dependent protein kinase complex nucleus nuclear protein-containing complex intracellular membrane-bounded organelle transferase complex protein kinase complex transferase complex, transferring phosphorus-containing groups serine/threonine protein kinase complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR013939	Regulatory subunit Dfp1/Him1, central region	Domain
A	IPR051590	DNA Replication Regulatory Kinase Subunit	Family
A	IPR006572	Zinc finger, DBF-type	Domain
A	IPR038545	DBF-type zinc finger superfamily	Homologous Superfamily
A	IPR036420	BRCT domain superfamily	Homologous Superfamily

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.