Anti-CDK9 antibody

Product Name Anti-CDK9 antibody

Catalog No PAab01564

Packing 100ug

Form liquid

Alternative Name CDC2L4 antibody, TAK

Purification Immunogen affinity purified

Purity 95% as determined by SDS-PAGE

Host Rabbit

Isotype IgG

Storage PBS with 0.02% sodium azide and 50% glycerol pH 7.3 , -20Centigrade for 24 months (Avoid repeated freeze / thaw cycles.)

Background/ FUNCTION

Protein kinase involved in the regulation of transcription. Member of the cyclin-dependent kinase pair (CDK9/cyclin-T) complex, also called positive transcription elongation factor b (P-TEFb), which facilitates the transition from abortive to productive elongation by phosphorylating the CTD (C-terminal domain) of the large subunit of RNA polymerase II (RNAP II) POLR2A, SUPT5H and RDBP. This complex is inactive when in the 7SK snRNP complex form. Phosphorylates EP300, MYOD1, RPB1/POLR2A and AR, and the negative elongation factors DSIF and NELF. Regulates cytokine inducible transcription networks by facilitating promoter recognition of target transcription factors (e.g. TNF-inducible RELA/p65 activation and IL-6-inducible STAT3 signaling). Promotes RNA synthesis in genetic programs for cell growth, differentiation and viral pathogenesis. P-TEFb is also involved in cotranscriptional histone modification, mRNA processing and mRNA export. Modulates a complex network of chromatin modifications including histone H2B monoubiquitination (H2Bub1), H3 lysine 4 trimethylation (H3K4me3) and H3K36me3; integrates phosphorylation during transcription with chromatin modifications to control co-transcriptional histone mRNA processing. The CDK9/cyclin-K complex has also a kinase activity towards CTD of RNAP II and can substitute for CDK9/cyclin-T P-TEFb in vitro. Replication stress response protein; the CDK9/cyclin-K complex is required for genome integrity maintenance, by promoting cell cycle recovery from replication arrest and limiting single- stranded DNA amount in response to replication stress, thus reducing the breakdown of stalled replication forks and avoiding DNA damage. In addition, probable function in DNA repair of isoform 2 via interaction with KU70/XRCC6. Promotes cardiac myocyte enlargement. RPB1/POLR2A phosphorylation on 'Ser-2' in CTD activates transcription. AR phosphorylation modulates AR transcription factor promoter selectivity and cell growth. DSIF and NELF phosphorylation promotes transcription by inhibiting their negative effect. The phosphorylation of MYOD1 enhances its transcriptional activity and thus promotes muscle differentiation.

Immunogen cyclin-dependent kinase 9

Specificity Human,Mouse ,Rat

Tested Application ELISA,WB,IHC

Recommended dilution

IHC use

Immunohistochemistry of paraffin-embedded human gliomas usingCDK9 antibody at dilution of 1:50

WB use

A431 cells were subjected to SDS PAGE followed by western blot with PAab01564(CDK9 antibody) at dilution of 1:1000

Protein Information

Gene ID1025

Uniprot ID P50750

Calculated MW

location