Annotations: 6TX2

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF10228	Histone PARylation factor 1 (HPF1)	Histone PARylation factor 1	Histone PARylation factor 1 (HPF1, previously known as C4orf27) is a key regulator of ADP-ribosylation (ADPr) signaling in response to DNA damage. It forms a complex with PARP-1 (poly(ADP-ribose) polymerase 1), creating a composite active site. HPF1 ...	Histone PARylation factor 1 (HPF1, previously known as C4orf27) is a key regulator of ADP-ribosylation (ADPr) signaling in response to DNA damage. It forms a complex with PARP-1 (poly(ADP-ribose) polymerase 1), creating a composite active site. HPF1 is essential for Ser-ADPr (ADPr on serine residues), which represents the major fraction of ADPr synthesised after DNA damage. This protein is organised into two tightly-associated domains connected via an elaborate linker, showing an alpha-beta structure [1-4].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Histone PARylation factor 1	protein binding binding histone binding poly-ADP-D-ribose binding carbohydrate derivative binding chromatin binding protein ADP-ribosyltransferase-substrate adaptor activity enzyme-substrate adaptor activity protein-macromolecule adaptor activity molecular adaptor activity	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process regulation of molecular function regulation of catalytic activity biological regulation regulation of transferase activity regulation of protein ADP-ribosylation primary metabolic process DNA metabolic process nucleic acid metabolic process cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process regulation of molecular function regulation of catalytic activity biological regulation regulation of transferase activity regulation of protein ADP-ribosylation primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process metabolic process macromolecule metabolic process DNA repair DNA repair-dependent chromatin remodeling cellular component organization chromatin organization chromatin remodeling cellular component organization or biogenesis double-strand break repair	intracellular organelle cellular anatomical structure intracellular anatomical structure organelle membraneless organelle intracellular membraneless organelle chromatin chromosome membrane-bounded organelle nucleus intracellular membrane-bounded organelle site of DNA damage