Intracellular
Cell type enhanced (Syncytiotrophoblasts)
Low immune cell specificity
Low cell line specificity
Homooligomer and heterooligomer with HEXIM2; probably dimeric (PubMed:15713661, PubMed:15965233, PubMed:16377779). Core component of the 7SK RNP complex, at least composed of 7SK RNA, LARP7, MEPCE, HEXIM1 (or HEXIM2) and P-TEFb (composed of CDK9 and CCNT1/cyclin-T1) (PubMed:12832472, PubMed:15201869, PubMed:15169877, PubMed:16362050, PubMed:15713661, PubMed:15855166, PubMed:16377779, PubMed:17643375, PubMed:17724342). Interacts with the N-CoR complex through NCOR1 (PubMed:17452463). Interacts with ESR1 and NR3C1 (PubMed:15940264, PubMed:15941832). May interact with NF-kappa-B through RELA (PubMed:12581153). Interacts with CCNT2; mediates formation of a tripartite complex with KPNA2 (PubMed:19883659). Part of the HDP-RNP complex composed of at least HEXIM1, PRKDC, XRCC5, XRCC6, paraspeckle proteins (SFPQ, NONO, PSPC1, RBM14, and MATR3) and NEAT1 non-coding RNA (PubMed:28712728).
Repressor
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For Research Use Only. Not For Clinical Use.