Annotations: 4XB0

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B		e4xb0B1	A: beta-propeller-like	X: beta-propeller	H: Nucleic acid-binding protein	T: DUF4847	F:	ECOD (20:10:01)
A		e4xb0A1	A: beta-propeller-like	X: beta-propeller	H: Nucleic acid-binding protein	T: DUF4847	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.30.1120.30	Alpha Beta	2-Layer Sandwich	Arylsulfatase, C-terminal domain	POLO box domain	CATH (4.3.0)
A	3.30.1120.30	Alpha Beta	2-Layer Sandwich	Arylsulfatase, C-terminal domain	POLO box domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00659	POLO box duplicated region (POLO_box)	POLO box duplicated region	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Serine/threonine-protein kinase PLK2	catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity protein serine kinase activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups protein binding binding ATP-dependent protein binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity protein serine kinase activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups protein binding binding ATP-dependent protein binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding protein serine/threonine kinase activity	cellular response to stimulus positive regulation of cell communication regulation of cellular process positive regulation of signal transduction positive regulation of canonical NF-kappaB signal transduction response to stimulus signaling positive regulation of biological process regulation of signal transduction intracellular signal transduction cell communication positive regulation of response to stimulus regulation of intracellular signal transduction intracellular signaling cassette cellular response to stimulus positive regulation of cell communication regulation of cellular process positive regulation of signal transduction positive regulation of canonical NF-kappaB signal transduction response to stimulus signaling positive regulation of biological process regulation of signal transduction intracellular signal transduction cell communication positive regulation of response to stimulus regulation of intracellular signal transduction intracellular signaling cassette signal transduction positive regulation of cellular process regulation of biological process regulation of signaling biological regulation positive regulation of intracellular signal transduction canonical NF-kappaB signal transduction regulation of response to stimulus regulation of cell communication regulation of canonical NF-kappaB signal transduction cellular process positive regulation of signaling small GTPase-mediated signal transduction Rap protein signal transduction regulation of cellular component organization microtubule cytoskeleton organization membraneless organelle assembly cellular component organization cellular component biogenesis centrosome duplication cellular component assembly centrosome cycle cell cycle cellular component organization or biogenesis regulation of cell cycle regulation of centriole replication cell cycle process centriole replication centriole assembly microtubule organizing center organization organelle assembly regulation of centrosome cycle regulation of cell cycle process regulation of microtubule-based process regulation of cellular component biogenesis regulation of organelle organization organelle organization regulation of centrosome duplication regulation of organelle assembly microtubule-based process cytoskeleton organization negative regulation of programmed cell death regulation of apoptotic process negative regulation of biological process regulation of programmed cell death cell death negative regulation of apoptotic process negative regulation of cellular process apoptotic process programmed cell death negative regulation of apoptotic process in bone marrow cell apoptotic process in bone marrow cell regulation of apoptotic process in bone marrow cell behavior multicellular organismal process system process learning or memory nervous system process cognition memory catabolic process positive regulation of protein metabolic process macromolecule catabolic process regulation of primary metabolic process positive regulation of metabolic process positive regulation of macromolecule metabolic process protein metabolic process regulation of protein metabolic process primary metabolic process regulation of macromolecule metabolic process protein catabolic process regulation of catabolic process positive regulation of protein catabolic process positive regulation of catabolic process metabolic process macromolecule metabolic process regulation of metabolic process regulation of protein catabolic process Ras protein signal transduction protein phosphorylation phosphorylation macromolecule modification phosphate-containing compound metabolic process protein modification process phosphorus metabolic process regulation of cellular senescence cellular senescence negative regulation of cellular senescence cellular response to stress response to stress mitotic cell cycle process cell cycle phase transition G1/S transition of mitotic cell cycle cell cycle G1/S phase transition mitotic cell cycle mitotic cell cycle phase transition regulation of synaptic plasticity trans-synaptic signaling modulation of chemical synaptic transmission cell-cell signaling chemical synaptic transmission synaptic signaling regulation of trans-synaptic signaling anterograde trans-synaptic signaling regulation of biological quality regulation of defense response regulation of response to external stimulus negative regulation of inflammatory response inflammatory response to antigenic stimulus regulation of response to stress regulation of immune system process negative regulation of inflammatory response to antigenic stimulus defense response immune response negative regulation of response to stimulus negative regulation of immune response regulation of inflammatory response to antigenic stimulus response to external stimulus regulation of inflammatory response negative regulation of immune system process immune system process negative regulation of response to external stimulus negative regulation of defense response regulation of immune response inflammatory response mitotic spindle organization microtubule cytoskeleton organization involved in mitosis spindle organization negative regulation of signaling negative regulation of synaptic transmission negative regulation of cell communication long-term synaptic depression signal transduction by p53 class mediator DNA damage response, signal transduction by p53 class mediator DNA damage response signal transduction in response to DNA damage regulation of developmental process angiogenesis regulation of vasculature development multicellular organism development tube morphogenesis anatomical structure development regulation of multicellular organismal process regulation of anatomical structure morphogenesis system development blood vessel development developmental process regulation of multicellular organismal development blood vessel morphogenesis tube development negative regulation of blood vessel morphogenesis negative regulation of developmental process negative regulation of angiogenesis vasculature development circulatory system development negative regulation of vasculature development anatomical structure morphogenesis regulation of angiogenesis anatomical structure formation involved in morphogenesis negative regulation of multicellular organismal process long-term synaptic potentiation positive regulation of synaptic transmission positive regulation of autophagy autophagy regulation of autophagy process utilizing autophagic mechanism positive regulation of locomotion regulation of cell motility cell migration involved in sprouting angiogenesis regulation of blood vessel endothelial cell migration endothelial cell migration positive regulation of cell migration positive regulation of cell motility regulation of cell migration blood vessel endothelial cell migration regulation of endothelial cell migration cell migration positive regulation of cell migration involved in sprouting angiogenesis cell motility locomotion regulation of cell migration involved in sprouting angiogenesis sprouting angiogenesis positive regulation of blood vessel endothelial cell migration regulation of locomotion positive regulation of endothelial cell migration	intracellular organelle cellular anatomical structure intracellular anatomical structure cytoskeleton spindle organelle membraneless organelle intracellular membraneless organelle spindle pole microtubule cytoskeleton centrosome microtubule organizing center centriole cytoplasm intracellular organelle cellular anatomical structure intracellular anatomical structure cytoskeleton spindle organelle membraneless organelle intracellular membraneless organelle spindle pole microtubule cytoskeleton centrosome microtubule organizing center centriole cytoplasm cytosol somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection chromatin chromosome chromosomal region kinetochore chromosome, centromeric region condensed chromosome, centromeric region supramolecular complex condensed chromosome membrane-bounded organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR017441	Protein kinase, ATP binding site	Binding Site
A, B	IPR036947	POLO box domain superfamily	Homologous Superfamily
A, B	IPR000719	Protein kinase domain	Domain
A, B	IPR000959	POLO box domain	Domain
A, B	IPR033701	First polo-box domain	Domain
A, B	IPR042825	PLK2, catalytic domain	Domain
A, B	IPR033695	Second polo-box domain	Domain
A, B	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
A, B	IPR008271	Serine/threonine-protein kinase, active site	Active Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: Q9NYY3	Mammary Neoplasms, Experimental sarcomatoid carcinoma juvenile idiopathic arthritis carcinoma lung carcinoma malignant pancreatic neoplasm adrenal cortex carcinoma osteosarcoma breast cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia undifferentiated carcinoma exocrine pancreatic carcinoma glioblastoma lung adenocarcinoma malignant ependymoma Mammary Neoplasms, Experimental sarcomatoid carcinoma juvenile idiopathic arthritis carcinoma lung carcinoma malignant pancreatic neoplasm adrenal cortex carcinoma osteosarcoma breast cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia undifferentiated carcinoma exocrine pancreatic carcinoma glioblastoma lung adenocarcinoma malignant ependymoma nephrosclerosis ovarian cancer breast fibroadenoma pilocytic astrocytoma diabetes mellitus spina bifida Duchenne muscular dystrophy gastric cancer hepatocellular carcinoma lung cancer malignant glioma mammary neoplasms, animal Alzheimer disease oligodendroglioma astrocytic tumor ovarian endometrioid adenocarcinoma psoriasis ulcerative colitis ductal breast carcinoma in situ gastric carcinoma

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.