Annotations: 3UNM

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	SMAD/FHA domain-like	8081376	3000137	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	SMAD/FHA domain-like	8081376	3000137	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	FHA	e3unmA2	A: beta sandwiches	X: SMAD/FHA domain (From Topology)	H: SMAD/FHA domain (From Topology)	T: SMAD/FHA domain	F: FHA	ECOD (1.6)
B	FHA	e3unmB2	A: beta sandwiches	X: SMAD/FHA domain (From Topology)	H: SMAD/FHA domain (From Topology)	T: SMAD/FHA domain	F: FHA	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.200.20	Mainly Beta	Sandwich	Tumour Suppressor Smad4		CATH (4.3.0)
B	2.60.200.20	Mainly Beta	Sandwich	Tumour Suppressor Smad4		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00498	FHA domain (FHA)	FHA domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Mediator of DNA damage checkpoint protein 1	histone reader activity chromatin-protein 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 cellular process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process regulation of nitrogen compound metabolic process nucleobase-containing compound metabolic process DNA-templated transcription positive regulation of metabolic process regulation of DNA-templated transcription initiation cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process regulation of cellular process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process regulation of nitrogen compound metabolic process nucleobase-containing compound metabolic process DNA-templated transcription positive regulation of metabolic process regulation of DNA-templated transcription initiation regulation of RNA metabolic process transcription by RNA polymerase II heterocycle metabolic process organic substance biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process transcription initiation at RNA polymerase II promoter regulation of transcription by RNA polymerase II regulation of biological process positive regulation of nucleobase-containing compound metabolic process cellular metabolic process cellular nitrogen compound metabolic process primary metabolic process regulation of cellular metabolic process positive regulation of transcription by RNA polymerase II positive regulation of DNA-templated transcription initiation positive regulation of RNA metabolic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process aromatic compound biosynthetic process organic cyclic compound biosynthetic process metabolic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process cellular biosynthetic process positive regulation of DNA-templated transcription positive regulation of biological process RNA metabolic process positive regulation of cellular metabolic process RNA biosynthetic process nucleic acid biosynthetic process organic substance metabolic process positive regulation of biosynthetic process nitrogen compound metabolic process positive regulation of cellular process regulation of RNA biosynthetic process regulation of biosynthetic process positive regulation of transcription initiation by RNA polymerase II biological regulation regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process heterocycle biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process DNA-templated transcription initiation regulation of cellular biosynthetic process positive regulation of nitrogen compound metabolic process positive regulation of RNA biosynthetic process regulation of transcription initiation by RNA polymerase II cellular aromatic compound metabolic process positive regulation of cellular biosynthetic process DNA metabolic process DNA repair 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 DNA replication checkpoint signaling 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 protein localization localization cellular localization protein localization to chromosome protein localization to organelle cellular macromolecule localization macromolecule localization protein localization to site of double-strand break DNA damage checkpoint signaling mitotic cell cycle negative regulation of mitotic cell cycle regulation of mitotic cell cycle mitotic DNA integrity checkpoint signaling mitotic DNA damage checkpoint signaling mitotic intra-S DNA damage checkpoint signaling mitotic cell cycle checkpoint signaling mitotic cell cycle process signal transduction in response to DNA damage	anchoring junction cell junction cellular anatomical entity focal adhesion cell-substrate junction intracellular organelle intracellular anatomical structure organelle intracellular non-membrane-bounded organelle chromosome non-membrane-bounded organelle site of double-strand break site of DNA damage membrane-bounded organelle anchoring junction cell junction cellular anatomical entity focal adhesion cell-substrate junction intracellular organelle intracellular anatomical structure organelle intracellular non-membrane-bounded organelle chromosome non-membrane-bounded organelle site of double-strand break site of DNA damage membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear body nucleoplasm organelle lumen nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR008984	SMAD/FHA domain superfamily	Homologous Superfamily
A, B	IPR000253	Forkhead-associated (FHA) domain	Domain
A, B	IPR001357	BRCT domain	Domain
A, B	IPR036420	BRCT domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: Q14676	psoriatic arthritis age-related macular degeneration cervical cancer cutaneous lupus erythematosus gastric carcinoma lymphoplasmacytic lymphoma osteosarcoma prostate carcinoma astrocytic tumor chronic obstructive pulmonary disease dermatomyositis Hashimoto thyroiditis malignant mesothelioma ovarian cancer psoriasis psoriatic arthritis age-related macular degeneration cervical cancer cutaneous lupus erythematosus gastric carcinoma lymphoplasmacytic lymphoma osteosarcoma prostate carcinoma astrocytic tumor chronic obstructive pulmonary disease dermatomyositis Hashimoto thyroiditis malignant mesothelioma ovarian cancer psoriasis autism spectrum disorder colorectal cancer endogenous depression lung carcinoma medulloblastoma primitive neuroectodermal tumor

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.