text: Corepressor proteins also bind to the surface of the ligand binding domain of nuclear receptors, but through a LXXXIXXX(I/L) motif of amino acids (where L = leucine, I = isoleucine and X = any amino acid).  In addition, compressors bind preferentially to the apo (ligand free) form of the nuclear receptor (or possibly antagonist bound receptor).
  * CtBP 602618  (associates with class II histone deacetylases)
  * LCoR (ligand-dependent corepressor)
  * Nuclear receptor CO-Repressor (NCOR)
  ** NCOR1 ()
  ** NCOR2 ()/SMRT (Silencing Mediator (co-repressor) for Retinoid and Thyroid-hormone receptors) (associates with histone deacetylase-3)
  * Rb (retinoblastoma protein)  (associates with histone deacetylase-1 and -2)
  * RCOR (REST corepressor)
  ** RCOR1 ()
  ** RCOR2 ()
  ** RCOR3 ()
  * Sin3
  ** SIN3A ()
  ** SIN3B ()
  * TIF1 (transcriptional intermediary factor 1)
  ** TRIM24 Tripartite motif-containing 24 ()
  ** TRIM28 Tripartite motif-containing 28 ()
  ** TRIM33 Tripartite motif-containing 33 ()