CATH Domain 4a4lA01

CATH Classification

Level	CATH Code	Description
	3	Alpha Beta
	3.30	2-Layer Sandwich
	3.30.200	Phosphorylase Kinase; domain 1
	3.30.200.20	Phosphorylase Kinase; domain 1

Domain Context

CATH Clusters

Superfamily	Phosphorylase Kinase; domain 1
Functional Family	Serine/threonine-protein kinase PLK

Enzyme Information

2.7.11.21

Polo kinase.

based on mapping to UniProt P53350

ATP + a protein = ADP + a phosphoprotein.

-!- The enzyme associates with the spindle pole during mitosis and is thought to play an important role in the dynamic function of the mitotic spindle during chromosome segregation. -!- The human form of the enzyme, Plk1, does not phosphorylate histone H1, enolase and phosvitin but it can phosphorylate myelin basic protein and microtubule-associated protein MAP-2, although to a lesser extent than casein. -!- Formerly EC 2.7.1.37.

UniProtKB Entries (1)

P53350

PLK1_HUMAN

Homo sapiens

Serine/threonine-protein kinase PLK1

PDB Structure

PDB	4A4L
External Links	PDBSum Proteopedia
Method	X-RAY DIFFRACTION
Organism
Primary Citation	5-(2-Amino-Pyrimidin-4-Yl)-1H-Pyrrole and 2-(2-Amino-Pyrimidin-4-Yl)-1,5,6,7-Tetrahydro-Pyrrolo[3,2-C]Pyridin-4-One Derivatives as New Classes of Selective and Orally Available Polo-Like Kinase 1 Inhibitors. Caruso, M., Valsasina, B., Ballinari, D., Bertrand, J.A., Brasca, M.G., Caldarelli, M., Cappella, P., Fiorentini, F., Gianellini, L.M., Scolaro, A., Beria, I. Bioorg.Med.Chem.Lett.