Chromodomain Y-like protein - Q9WTK2 (CDYL_MOUSE)

 

Protein Feature View of PDB entries mapped to a UniProtKB sequence  

 
Function
Isoform 2: Chromatin reader protein that recognizes and binds histone H3 trimethylated at 'Lys-9', dimethylated at 'Lys-27' and trimethylated at 'Lys-27' (H3K9me3, H3K27me2 and H3K27me3, respectively) (PubMed:12947414). Part of multimeric repressive chromatin complexes, where it is required for transmission and restoration of repressive histone marks, thereby preserving the epigenetic landscape (PubMed:12947414). Required for chromatin targeting and maximal enzymatic activity of Polycomb repressive complex 2 (PRC2); acts as a positive regulator of PRC2 activity by bridging the pre-existing histone H3K27me3 and newly recruited PRC2 on neighboring nucleosomes (By similarity). Acts as a corepressor for REST by facilitating histone-lysine N-methyltransferase EHMT2 recruitment and H3K9 dimethylation at REST target genes for repression (By similarity). Involved X chromosome inactivation in females: recruited to Xist RNA-coated X chromosome and facilitates propagation of H3K9me2 by anchoring EHMT2 (PubMed:24144980). Required for neuronal migration during brain development by repressing expression of RHOA (PubMed:28076783). In addition to act as a chromatin reader, acts as a hydro-lyase (By similarity). Shows crotonyl-coA hydratase activity by mediating the conversion of crotonyl-CoA ((2E)-butenoyl-CoA) to beta-hydroxybutyryl-CoA (3-hydroxybutanoyl-CoA), thereby acting as a negative regulator of histone crotonylation (By similarity). Histone crotonylation is required during spermatogenesis; down-regulation of histone crotonylation by CDYL regulates the reactivation of sex chromosome-linked genes in round spermatids and histone replacement in elongating spermatids (PubMed:28803779). May have histone acetyltransferase activity; such activity is however unsure in vivo (PubMed:12072557). UniProt
Catalytic Activity
3-hydroxybutanoyl-CoA = 2E-butenoyl-CoA + H2O UniProt
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Subunit Structure
Forms multimers and multimerization is required for stable binding to chromatin (By similarity). Interacts with HDAC1 and HDAC2 via its C-terminal acetyl-CoA-binding domain (PubMed:12947414). Interacts with EZH2, EED, SUZ12, REST, EHMT1 and EHMT2 (By similarity). Part of a complex containing at least CDYL, REST, WIZ, SETB1, EHMT1 and EHMT2 (By similarity). Part of a complex containing at least CDYL, MIER1, MIER2, HDAC1 and HDAC2 (By similarity). Interacts with CHAF1A and CHAF1B; bridging the CAF-1 complex to the MCM2-7 (MCM) complex (By similarity). Interacts with MCM3 and MCM5; bridging the CAF-1 complex to the MCM2-7 (MCM) complex. UniProt
Domain
The acetyl-CoA-binding domain mediates crotonyl-coA hydratase activity. UniProt
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Data in blue originates from PDB
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The PDB to UniProt mapping is based on the data provided by the EBI SIFTS project. See also Velankar et al., Nucleic Acids Research 33, D262-265 (2005).
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