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 | Cyclin-dependent kinase 9 |
Enzyme Information
| 2.7.11.23 |
[RNA-polymerase]-subunit kinase.
based on mapping to UniProt P50750
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 P50750
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 (2)
| O60563 |
CCNT1_HUMAN
Homo sapiens
Cyclin-T1
|
| P04608 |
TAT_HV1H2
HIV-1 M:B_HXB2R
Protein Tat
|
PDB Structure
| PDB | 3MIA |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | |
| Primary Citation |
Crystal structure of HIV-1 Tat complexed with human P-TEFb.
Nature
|