Annotations: 8B4J

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth O]		e8b4jO1	A: Family A G protein-coupled receptor-like	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: Ku_PK_bind	F:	ECOD (20:10:01)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B [auth P]	DNA damage checkpoint protein LCD1	DNA binding binding damaged DNA binding nucleic acid binding	nucleobase-containing compound metabolic process primary metabolic process metabolic process cellular process telomere maintenance via telomerase telomere organization chromosome organization DNA metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process RNA-templated DNA biosynthetic process telomere maintenance via telomere lengthening telomere maintenance nucleobase-containing compound metabolic process primary metabolic process metabolic process cellular process telomere maintenance via telomerase telomere organization chromosome organization DNA metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process RNA-templated DNA biosynthetic process telomere maintenance via telomere lengthening telomere maintenance cellular component organization nucleic acid biosynthetic process organelle organization biosynthetic process macromolecule metabolic process cellular component organization or biogenesis DNA biosynthetic process localization establishment of protein localization establishment of localization cellular response to stimulus response to stimulus cellular response to stress DNA damage response response to stress DNA repair regulation of cellular process regulation of double-strand break repair regulation of cellular response to stress regulation of primary metabolic process regulation of response to stress regulation of nucleobase-containing compound metabolic process double-strand break repair regulation of biological process biological regulation regulation of macromolecule metabolic process regulation of DNA repair regulation of response to stimulus regulation of metabolic process regulation of DNA metabolic process DNA damage checkpoint signaling regulation of cell cycle phase transition signaling negative regulation of biological process negative regulation of cell cycle cell cycle phase transition intracellular signal transduction cell communication negative regulation of cellular process negative regulation of cell cycle phase transition signal transduction cell cycle regulation of cell cycle cell cycle process regulation of cell cycle process DNA integrity checkpoint signaling negative regulation of cell cycle process cell cycle checkpoint signaling signal transduction in response to DNA damage chromatin organization	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen nuclear chromosome intracellular membraneless organelle chromosome intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen nuclear chromosome intracellular membraneless organelle chromosome intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle nuclear lumen cytoplasm protein-containing complex nuclear protein-containing complex ATR-ATRIP complex
A [auth O]	Replication factor A protein 1	DNA binding binding damaged DNA binding nucleic acid binding sequence-specific DNA binding RNA binding mRNA binding double-stranded DNA binding sequence-specific single stranded DNA binding single-stranded telomeric DNA binding single-stranded DNA binding telomeric DNA binding cation binding transition metal ion binding DNA binding binding damaged DNA binding nucleic acid binding sequence-specific DNA binding RNA binding mRNA binding double-stranded DNA binding sequence-specific single stranded DNA binding single-stranded telomeric DNA binding single-stranded DNA binding telomeric DNA binding cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding	nucleobase-containing compound metabolic process DNA replication metabolic process cellular process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process telomere maintenance via telomerase telomere organization chromosome organization nucleobase-containing compound biosynthetic process macromolecule biosynthetic process RNA-templated DNA biosynthetic process nucleobase-containing compound metabolic process DNA replication metabolic process cellular process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process telomere maintenance via telomerase telomere organization chromosome organization nucleobase-containing compound biosynthetic process macromolecule biosynthetic process RNA-templated DNA biosynthetic process telomere maintenance via telomere lengthening telomere maintenance cellular component organization nucleic acid biosynthetic process organelle organization biosynthetic process cellular component organization or biogenesis DNA biosynthetic process localization establishment of protein localization establishment of localization homologous recombination sexual reproduction reproductive process meiotic cell cycle process meiosis I meiotic nuclear division cell cycle reciprocal homologous recombination cell cycle process DNA recombination meiotic cell cycle organelle fission reciprocal meiotic recombination nuclear division meiosis I cell cycle process mitotic recombination telomere maintenance via recombination heteroduplex formation developmental process sporulation protein ubiquitination macromolecule modification protein metabolic process post-translational protein modification protein modification process protein modification by small protein conjugation protein modification by small protein conjugation or removal DNA conformation change DNA topological change cellular response to stimulus double-strand break repair response to stimulus cellular response to stress DNA damage response response to stress recombinational repair double-strand break repair via homologous recombination DNA repair nucleotide-excision repair	membrane-bounded organelle protein-containing complex intracellular anatomical structure nucleus membrane-enclosed lumen nuclear protein-containing complex nuclear chromosome chromosome intracellular organelle lumen intracellular organelle cellular anatomical structure nuclear replisome membraneless organelle replication fork membrane-bounded organelle protein-containing complex intracellular anatomical structure nucleus membrane-enclosed lumen nuclear protein-containing complex nuclear chromosome chromosome intracellular organelle lumen intracellular organelle cellular anatomical structure nuclear replisome membraneless organelle replication fork DNA replication factor A complex protein-DNA complex nuclear replication fork intracellular membraneless organelle intracellular membrane-bounded organelle organelle lumen organelle nuclear lumen replisome condensed nuclear chromosome condensed chromosome cytoplasm cytosol chromosome, telomeric region chromosomal region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B [auth P]	IPR018622	DNA damage checkpoint protein, Lcd1	Family
A [auth O]	IPR007199	Replication factor-A protein 1, N-terminal	Domain
A [auth O]	IPR047192	Replication factor A, C-terminal, eukaryotes	Domain
A [auth O]	IPR013955	Replication factor A, C-terminal	Domain
A [auth O]	IPR031657	Replication protein A, OB domain	Domain
A [auth O]	IPR004365	OB-fold nucleic acid binding domain, AA-tRNA synthetase-type	Domain
A [auth O]	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
A [auth O]	IPR004591	Replication factor A protein 1	Family

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
B [auth P]	SEP	Parent Component: SER RESID: AA0037 PSI-MOD : O-phospho-L-serine MOD:00046

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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 R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.