PLK3

Gene Information

Official Symbol: PLK3
Official Name: polo like kinase 3
Aliases and Previous Symbols: N/A
Entrez ID: 1263
UniProt: Q9H4B4
Interactions: BioGRID
PubMed articles: Open PubMed
OMIM: Open OMIM

Function Summary

Entrez Summary: N/A
UniProt Summary: Serine/threonine-protein kinase involved in cell cycle regulation, response to stress and Golgi disassembly. Polo-like kinases act by binding and phosphorylating proteins are that already phosphorylated on a specific motif recognized by the POLO box domains. Phosphorylates ATF2, BCL2L1, CDC25A, CDC25C, CHEK2, HIF1A, JUN, p53/TP53, p73/TP73, PTEN, TOP2A and VRK1. Involved in cell cycle regulation: required for entry into S phase and cytokinesis. Phosphorylates BCL2L1, leading to regulate the G2 checkpoint and progression to cytokinesis during mitosis. Plays a key role in response to stress: rapidly activated upon stress stimulation, such as ionizing radiation, reactive oxygen species (ROS), hyperosmotic stress, UV irradiation and hypoxia. Involved in DNA damage response and G1/S transition checkpoint by phosphorylating CDC25A, p53/TP53 and p73/TP73. Phosphorylates p53/TP53 in response to reactive oxygen species (ROS), thereby promoting p53/TP53-mediated apoptosis. Phosphorylates CHEK2 in response to DNA damage, promoting the G2/M transition checkpoint. Phosphorylates the transcription factor p73/TP73 in response to DNA damage, leading to inhibit p73/TP73-mediated transcriptional activation and pro-apoptotic functions. Phosphorylates HIF1A and JUN is response to hypoxia. Phosphorylates ATF2 following hyperosmotic stress in corneal epithelium. Also involved in Golgi disassembly during the cell cycle: part of a MEK1/MAP2K1-dependent pathway that induces Golgi fragmentation during mitosis by mediating phosphorylation of VRK1. May participate in endomitotic cell cycle, a form of mitosis in which both karyokinesis and cytokinesis are interrupted and is a hallmark of megakaryocyte differentiation, via its interaction with CIB1. {ECO:0000269|PubMed:10557092, ECO:0000269|PubMed:11156373, ECO:0000269|PubMed:11447225, ECO:0000269|PubMed:11551930, ECO:0000269|PubMed:11971976, ECO:0000269|PubMed:12242661, ECO:0000269|PubMed:14968113, ECO:0000269|PubMed:14980500, ECO:0000269|PubMed:15021912, ECO:0000269|PubMed:16478733, ECO:0000269|PubMed:16481012, ECO:0000269|PubMed:17264206, ECO:0000269|PubMed:17804415, ECO:0000269|PubMed:18062778, ECO:0000269|PubMed:18650425, ECO:0000269|PubMed:19103756, ECO:0000269|PubMed:19490146, ECO:0000269|PubMed:20889502, ECO:0000269|PubMed:20940307, ECO:0000269|PubMed:20951827, ECO:0000269|PubMed:21098032, ECO:0000269|PubMed:21264284, ECO:0000269|PubMed:21376736, ECO:0000269|PubMed:21840391, ECO:0000269|PubMed:9353331}.

Pfam Domains GO Terms

CRISPR Data

Compound Hit Most Correlated Genes in Chemogenomics Tissues where Essential in the Avana Dataset (DepMap 20Q1)

Global Fraction of Cell Lines Where Essential: 0/739

Tissue	Fraction Of Cell Lines Where Essential
1290807.0	0/1
909776.0	0/1
bile duct	0/28
blood	0/28
bone	0/26
breast	0/33
central nervous system	0/56
cervix	0/4
colorectal	0/17
esophagus	0/13
fibroblast	0/1
gastric	0/16
kidney	0/21
liver	0/20
lung	0/75
lymphocyte	0/16
ovary	0/26
pancreas	0/24
peripheral nervous system	0/16
plasma cell	0/15
prostate	0/1
skin	0/24
soft tissue	0/9
thyroid	0/2
upper aerodigestive	0/22
urinary tract	0/29
uterus	0/5

Essentiality in NALM6

Essentiality Rank: 10638
Expression level (log2 read counts): 4.43

Expression Distribution

POLO box
Pkinase Tyr
Pkinase

positive regulation of chaperone-mediated autophagy
positive regulation of proteasomal ubiquitin-dependent protein catabolic process involved in cellular response to hypoxia
endomitotic cell cycle
Golgi disassembly
regulation of chaperone-mediated autophagy
organelle inheritance
Golgi inheritance
Golgi stack
protein kinase B signaling
cytoplasmic microtubule organization
DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest
signal transduction involved in mitotic DNA damage checkpoint
signal transduction involved in mitotic cell cycle checkpoint
signal transduction involved in mitotic G1 DNA damage checkpoint
signal transduction involved in mitotic DNA integrity checkpoint
intracellular signal transduction involved in G1 DNA damage checkpoint
mitotic G1/S transition checkpoint
mitotic G1 DNA damage checkpoint
G1 DNA damage checkpoint
organelle disassembly
p53 binding
signal transduction involved in DNA integrity checkpoint
signal transduction involved in DNA damage checkpoint
signal transduction involved in cell cycle checkpoint
response to osmotic stress
DNA damage response, signal transduction by p53 class mediator
positive regulation of cell cycle arrest
positive regulation of proteasomal ubiquitin-dependent protein catabolic process
regulation of cytokinesis
mitotic DNA damage checkpoint
positive regulation of ubiquitin-dependent protein catabolic process
negative regulation of G1/S transition of mitotic cell cycle
mitotic DNA integrity checkpoint
signal transduction in response to DNA damage
positive regulation of proteasomal protein catabolic process
negative regulation of cell cycle G1/S phase transition
regulation of cell cycle arrest
G1/S transition of mitotic cell cycle
signal transduction by p53 class mediator
positive regulation of proteolysis involved in cellular protein catabolic process