CDK9/CCNT1 (Human) Recombinant Protein
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More Files
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Result of activity analysis
Result of activity analysis
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Specification
Product Description
Human CDK9 (NP_001252.1, 1 a.a. - 372 a.a.) and CCNT1 (NP_001231.2, 1 a.a. - 726 a.a.) full-length recombinant protein with GST tag expressed in baculovirus infected Sf21 cells.
Host
insect
Theoretical MW (kDa)
70
Form
Liquid
Preparation Method
Baculovirus infected insect cell (Sf21) expression system
Purification
Glutathione sepharose chromatography
Purity
95 % by SDS-PAGE/CBB staining
Activity
The activity was measured by off-chip mobility shift assay. The enzyme was incubated with fluorescence-labeled substrate and Mg(or Mn)/ATP. The phosphorylated and unphosphorylated substrates were separated and detected by LabChip 3000. Substrate: CDK9 substrate. ATP: 100 uM.
Quality Control Testing
Loading 1 ug protein in SDS-PAGE
Storage Buffer
In 50 mM Tris-HCl, 150 mM NaCl, pH 7.5 (0.1% CHAPS, 1 mM DTT, 10% glycerol)
Storage Instruction
Store at -80°C.
Aliquot to avoid repeated freezing and thawing.Note
Result of activity analysis
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Applications
Functional Study
SDS-PAGE
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Gene Info — CCNT1
Entrez GeneID
904Protein Accession#
NP_001252.1 (Gene ID : 1025);NP_001231.2 (Gene ID : 904)Gene Name
CCNT1
Gene Alias
CCNT, CYCT1
Gene Description
cyclin T1
Omim ID
602506Gene Ontology
HyperlinkGene Summary
The protein encoded by this gene belongs to the highly conserved cyclin family, whose members are characterized by a dramatic periodicity in protein abundance through the cell cycle. Cyclins function as regulators of CDK kinases. Different cyclins exhibit distinct expression and degradation patterns which contribute to the temporal coordination of each mitotic event. This cyclin tightly associates with CDK9 kinase, and was found to be a major subunit of the transcription elongation factor p-TEFb. The kinase complex containing this cyclin and the elongation factor can interact with, and act as a cofactor of human immunodeficiency virus type 1 (HIV-1) Tat protein, and was shown to be both necessary and sufficient for full activation of viral transcription. This cyclin and its kinase partner were also found to be involved in the phosphorylation and regulation of the carboxy-terminal domain (CTD) of the largest RNA polymerase II subunit. [provided by RefSeq
Other Designations
CDK9-associated C-type protein|cyclin C-related protein|cyclin T1b|subunit of positive elongation transcription factor b
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Gene Info — CDK9
Entrez GeneID
1025Protein Accession#
NP_001252.1 (Gene ID : 1025);NP_001231.2 (Gene ID : 904)Gene Name
CDK9
Gene Alias
C-2k, CDC2L4, CTK1, PITALRE, TAK
Gene Description
cyclin-dependent kinase 9
Omim ID
603251Gene Ontology
HyperlinkGene Summary
The protein encoded by this gene is a member of the cyclin-dependent protein kinase (CDK) family. CDK family members are highly similar to the gene products of S. cerevisiae cdc28, and S. pombe cdc2, and known as important cell cycle regulators. This kinase was found to be a component of the multiprotein complex TAK/P-TEFb, which is an elongation factor for RNA polymerase II-directed transcription and functions by phosphorylating the C-terminal domain of the largest subunit of RNA polymerase II. This protein forms a complex with and is regulated by its regulatory subunit cyclin T or cyclin K. HIV-1 Tat protein was found to interact with this protein and cyclin T, which suggested a possible involvement of this protein in AIDS. [provided by RefSeq
Other Designations
CDC2-related kinase|OTTHUMP00000022198|cell division protein kinase 9|serine/threonine protein kinase PITALRE
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Interactome
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Disease
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