Chlorocebus sabaeus      Other/PLK


※ PLK family introduction

    PLK (Polo-like kinase) belong to the "Other" group. PLKs are key regulators in cell cycle. Four members have been identified in human genomes which are known as PLK1-4. Sequence analysis show that PLKs are defined by two features: an N-terminal ser/thr protein kinase domain and a C-terminal duplicated polo-box region. Kinase catalytic is highly conserved among all PLKs while the two Polo-box regions are much less conserved which functions as a single unit named "PBD". Human PLK1 is expressed during late G2 and M phases and regulate much of the machineries which are required in mitosis. PLK2 is expressed primarily in early G1 and control the entry into S phase. The expression level of PLK3 is constant durning cell cycle and plays a important role in many stress response pathways. In addition, PLK2 and PLK3 play some similar roles with PLK1 in mitotic functions including Golgi fragmentation and cytokinesis. Like Plk1, Plk4 is essential for cell viability and studies show that PLK4 can also function as tumor suppressor protein (1).

Reference
1. Lowery, D.M., Lim, D. and Yaffe, M.B. (2005) Structure and function of Polo-like kinases. Oncogene, 24, 248-259. PMID: 15640840.


There are 5 genes.  Reviewed (0 or Unreviewed (5

No.StatusiEKPD IDEnsemble Gene IDUniProt AccessionGene Name
1
iEKPD-Chs-1235
ENSCSAG00000006734.1
A0A0D9R331
PLK1
2
iEKPD-Chs-1258
ENSCSAG00000016152.1
A0A0D9RUD3
PLK2
3
iEKPD-Chs-1229
ENSCSAG00000001205.1
A0A0D9S7H0
PLK3
4
iEKPD-Chs-0068
ENSCSAG00000003606.1
A0A0D9S0Q9
PLK4
5
iEKPD-Chs-0293
ENSCSAG00000011990.1
A0A0D9RHT5
PLK5