background:
Component of the FACT complex, a general chromatin factor that acts to reorganize nucleosomes. The FACT complex is involved in multiple processes that require DNA as a template such as mRNA elongation, DNA replication and DNA repair. During transcription elongation the FACT complex acts as a histone chaperone that both destabilizes and restores nucleosomal structure. It facilitates the passage of RNA polymerase II and transcription by promoting the dissociation of one histone H2A-H2B dimer from the nucleosome, then subsequently promotes the reestablishment of the nucleosome following the passage of RNA polymerase II. The FACT complex is probably also involved in phosphorylation of 'Ser-392' of p53/TP53 via its association with CK2 (casein kinase II). Also involved in vitamin D-coupled transcription regulation via its association with the WINAC complex, a chromatin-remodeling complex recruited by vitamin D receptor (VDR), which is required for the ligand-bound VDR-mediated transrepression of the CYP27B1 gene.
Function:
Component of the FACT complex, a general chromatinfactor that acts to reorganize nucleosomes. The FACT complex isinvolved in multiple processes that require DNA as a template suchas mRNA elongation, DNA replication and DNA repair. Duringtranscription elongation the FACT complex acts as a histonechaperone that both destabilizes and restores nucleosomalstructure. It facilitates the passage of RNA polymerase II andtranscription by promoting the dissociation of one histone H2A-H2Bdimer from the nucleosome, then subsequently promotes thereestablishment of the nucleosome following the passage of RNApolymerase II. The FACT complex is probably also involved inphosphorylation of 'Ser-392' of p53/TP53 via its association withCK2 (casein kinase II). Also involved in vitamin D-coupledtranscription regulation via its association with the WINACcomplex, a chromatin-remodeling complex recruited by vitamin Dreceptor (VDR), which is required for the ligand-bound VDR-mediatedtransrepression of the CYP27B1 gene (By similarity).
Subunit:
Component of the FACT complex, a stable heterodimer ofSSRP1 and SUPT16H. Also component of a CK2-SPT16-SSRP1 complexwhich forms following UV irradiation, composed of SSRP1, SUPT16H,CSNK2A1, CSNK2A2 and CSNK2B. Component of the WINAC complex, atleast composed of SMARCA2, SMARCA4, SMARCB1, SMARCC1, SMARCC2,SMARCD1, SMARCE1, ACTL6A, BAZ1B/WSTF, ARID1A, SUPT16H, CHAF1A andTOP2B. Interacts with NEK9. Binds to histone H2A-H2B. Interactswith GTF2E2.
Subcellular Location:
Nucleus. Chromosome. Note=Colocalizes withRNA polymerase II on chromatin. Recruited to actively transcribedloci.
Tissue Specificity:
Ubiquitous.
Post-translational modifications:
ADP-ribosylated. ADP-ribosylation by PARP1 is induced bygenotoxic stress and correlates with dissociation of FACT fromchromatin.
Similarity:
Belongs to the peptidase M24 family. SPT16 subfamily.
Database links:
Entrez Gene: 514989 Cow
Entrez Gene: 612874 Dog
Entrez Gene: 11198 Human
Entrez Gene: 114741 Mouse
Entrez Gene: 305851 Rat
Omim: 605012 Human
SwissProt: E1BNP8 Cow
SwissProt: Q9Y5B9 Human
SwissProt: Q920B9 Mouse
Unigene: 213724 Human
Unigene: 21662 Mouse
Unigene: 93187 Rat
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
|
|
