HEXIM1
Reactivity: Human
WB, ICC, DB
Host: Mouse
Monoclonal
2416C2a
unconjugated
Application Notes
IF: 1:100. WB: 1:1000
Restrictions
For Research Use only
Format
Liquid
Buffer
Rabbit IgG in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02 % sodium azide and 50 % glycerol.
Preservative
Sodium azide
Precaution of Use
WARNING: Reagents contain sodium azide. Sodium azide is very toxic if ingested or inhaled. Avoid contact with skin, eyes, or clothing. Wear eye or face protection when handling. If skin or eye contact occurs, wash with copious amounts of water. If ingested or inhaled, contact a physician immediately. Sodium azide yields toxic hydrazoic acid under acidic conditions. Dilute azide-containing compounds in running water before discarding to avoid accumulation of potentially explosive deposits in lead or copper plumbing.
Storage
4 °C,-20 °C
Wittmann, Wang, Montano: "Identification of a novel inhibitor of breast cell growth that is down-regulated by estrogens and decreased in breast tumors." in: Cancer research, Vol. 63, Issue 16, pp. 5151-8, (2003) (PubMed).
Ouchida, Kusuhara, Shimizu, Hisada, Makino, Morimoto, Handa, Ohsuzu, Tanaka: "Suppression of NF-kappaB-dependent gene expression by a hexamethylene bisacetamide-inducible protein HEXIM1 in human vascular smooth muscle cells." in: Genes to cells : devoted to molecular & cellular mechanisms, Vol. 8, Issue 2, pp. 95-107, (2003) (PubMed).
Yik, Chen, Nishimura, Jennings, Link, Zhou: "Inhibition of P-TEFb (CDK9/Cyclin T) kinase and RNA polymerase II transcription by the coordinated actions of HEXIM1 and 7SK snRNA." in: Molecular cell, Vol. 12, Issue 4, pp. 971-82, (2003) (PubMed).
Transcriptional regulator which functions as a general RNA polymerase II transcription inhibitor. In cooperation with 7SK snRNA sequesters P-TEFb in a large inactive 7SK snRNP complex preventing RNA polymerase II phosphorylation and subsequent transcriptional elongation. May also regulate NF-kappa-B, ESR1, NR3C1 and CIITA-dependent transcriptional activity.