TBL1XR1 and Intellectual disability: TBL1XR1, encoding for transducin β-like 1—related protein 1 (a member of HDAC containing NCOR/SMRT complexes) (Yoon et al., 2003), has been associated with different human developmental diseases, spanning from autism spectrum disorders (ASD) (O’Roak et al., 2012; Stessman et al., 2017), to West syndrome (Saitsu et al., 2014), schizophrenia (SCZ) (Nishi et al., 2017), intellectual disability (Pons et al., 2015; Riehmer et al., 2017).