CATH Domain 5icpA01

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

Enzyme Information

2.7.11.23

[RNA-polymerase]-subunit kinase.

based on mapping to UniProt P49336

ATP + [DNA-directed RNA polymerase] = ADP + [DNA-directed RNA polymerase] phosphate.

-!- Appears to be distinct from other protein phosphokinases. -!- Brings about multiple phosphorylation of the unique C-terminal repeat domain of the largest subunit of eukaryotic EC 2.7.7.6. -!- Does not phosphorylate casein, phosvitin or histone. -!- Formerly EC 2.7.1.141.

2.7.11.22

Cyclin-dependent kinase.

based on mapping to UniProt P49336

ATP + a protein = ADP + a phosphoprotein.

-!- Activation of cyclin-dependent kinases requires association of the enzyme with a regulatory subunit referred to as a cyclin. -!- It is the sequential activation and inactivation of cyclin-dependent kinases, through the periodic synthesis and destruction of cyclins, that provides the primary means of cell-cycle regulation. -!- Formerly EC 2.7.1.37.

UniProtKB Entries (1)

P24863

CCNC_HUMAN

Homo sapiens

Cyclin-C

PDB Structure

PDB	5ICP
External Links	PDBSum Proteopedia
Method	X-RAY DIFFRACTION
Organism
Primary Citation	Structure-Based Optimization of Potent, Selective, and Orally Bioavailable CDK8 Inhibitors Discovered by High-Throughput Screening. Czodrowski, P., Mallinger, A., Wienke, D., Esdar, C., Poschke, O., Busch, M., Rohdich, F., Eccles, S.A., Ortiz-Ruiz, M.J., Schneider, R., Raynaud, F.I., Clarke, P.A., Musil, D., Schwarz, D., Dale, T., Urbahns, K., Blagg, J., Schiemann, K. J. Med. Chem.