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Example sentences for: actr
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Prominent among these coactivators is the SRC (steroid receptor coactivator) family, which consists of SRC-1, TIF2/GRIP1, and RAC3/ACTR/pCIP/AIB-1.
Overexpression of these NCoA factors enhances ligand-induced transactivation of several nuclear receptors [ 99 ] . A weak intrinsic HAT activity has been reported in SRC-1/NCoA-1 and pCIP/ACTR/AIB1, suggesting that chromatin remodeling may also be a function of these NCoA factors [ 99 100 ] ; although they do not appear to contain regions homologous to the HAT domains of CBP/p300 or p/CAF.
The NcoA family members constitute SRC-1/NcoA-1 [ 89 ] , TIF2/GRIP1/NcoA-2, [ 94 95 ] and pCIP/ACTR/AIB1 [ 96 97 98 ] proteins, which interact with liganded RA receptor (RAR), and CBP/p300.
To test the effects of rexinoids on coactivator binding in a defined biochemical system, surface plasmon resonance was used to characterize the effects of the various ligands on binding of CAR, RXR and CAR/RXR heterodimers to SRC-3 (also known as ACTR, p/CIP, RAC3, AIB1, TRAM-1), an effective coactivator for CAR and many other members of the nuclear receptor superfamily.
The nuclear receptor (NR) family comprises 48 structurally related transcription factors, many of which require their cognate ligand for activity [ 1 2 3 ] . The NRs regulate transcription by binding to response elements in the promoters of target genes and acting as scaffolds for the assembly of large coactivator and corepressor complexes [ 4 ] . NR coactivators include the p160s (including GRIP1/TIF-2, SRC-1 and AIB1/ACTR/pCIP).
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