Annotations: 1PL5

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B [auth S]	d1pl5s_	Coiled coil proteins	Parallel coiled-coil	Dimerization motif of sir4	Dimerization motif of sir4	Dimerization motif of sir4	baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
A	d1pl5a_	Coiled coil proteins	Parallel coiled-coil	Dimerization motif of sir4	Dimerization motif of sir4	Dimerization motif of sir4	baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B [auth S]	SCOP2B Superfamily	Dimerization motif of sir4	8038178	3001769	SCOP2B (2022-06-29)
A	SCOP2 Family	Dimerization motif of sir4	8025799	4003904	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Dimerization motif of sir4	8038178	3001769	SCOP2 (2022-06-29)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B [auth S]	1.20.5.730	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Single helix bin	CATH (4.3.0)
A	1.20.5.730	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Single helix bin	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B [auth S]	Regulatory protein SIR4	DNA binding double-stranded DNA binding binding organic cyclic compound binding nucleic acid binding molecular adaptor activity protein-containing complex binding chromatin binding nucleosome binding	localization telomere localization telomere tethering at nuclear periphery chromosome localization organelle localization cellular localization establishment of protein-containing complex localization to telomere cellular macromolecule localization macromolecule localization cellular process establishment of localization protein-containing complex localization subtelomeric heterochromatin formation regulation of cellular process localization telomere localization telomere tethering at nuclear periphery chromosome localization organelle localization cellular localization establishment of protein-containing complex localization to telomere cellular macromolecule localization macromolecule localization cellular process establishment of localization protein-containing complex localization subtelomeric heterochromatin formation regulation of cellular process cellular biosynthetic process negative regulation of biological process telomere organization negative regulation of cellular metabolic process cellular component organization protein-DNA complex organization organic substance metabolic process chromatin organization organic substance biosynthetic process negative regulation of cellular process chromatin remodeling cellular component organization or biogenesis negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of biological process heterochromatin formation protein-containing complex organization epigenetic regulation of gene expression cellular metabolic process negative regulation of metabolic process biological regulation chromosome organization regulation of cellular metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process negative regulation of cellular biosynthetic process regulation of cellular biosynthetic process regulation of gene expression organelle organization negative regulation of gene expression constitutive heterochromatin formation biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process negative regulation of gene expression, epigenetic regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process regulation of metabolic process silent mating-type cassette heterochromatin formation cellular response to stimulus double-strand break repair response to stimulus double-strand break repair via nonhomologous end joining primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process cellular response to stress DNA damage response response to stress DNA repair positive regulation of organelle organization cellular component biogenesis regulation of heterochromatin formation regulation of chromatin organization regulation of chromosome organization regulation of organelle organization positive regulation of chromosome organization regulation of cellular component organization positive regulation of cellular component organization positive regulation of biological process positive regulation of heterochromatin formation positive regulation of chromatin organization positive regulation of cellular process positive regulation of cellular component biogenesis regulation of cellular component biogenesis	membrane-bounded organelle intracellular organelle protein-containing complex intracellular anatomical structure organelle chromatin silencing complex nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity intracellular non-membrane-bounded organelle chromosome chromosome, telomeric region chromosomal region membrane-bounded organelle intracellular organelle protein-containing complex intracellular anatomical structure organelle chromatin silencing complex nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity intracellular non-membrane-bounded organelle chromosome chromosome, telomeric region chromosomal region non-membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B [auth S]	IPR031556	Sir4, SID domain	Domain

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.