Annotations: 4R9P

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Sema	e4r9pA1	A: a/b three-layered sandwiches	X: MocoBD/DmpA-related	H: MocoBD/DmpA-related	T: Retrovirus capsid protein-C	F: Sema	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.200.10	Mainly Beta	Sandwich	Tumour Suppressor Smad4		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF03166	MH2 domain (MH2)	MH2 domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	RE28239p	-	multicellular organismal process regulation of biological process biological regulation regulation of multicellular organismal process developmental process animal organ development trachea morphogenesis multicellular organism development anatomical structure morphogenesis trachea development anatomical structure development respiratory system development animal organ morphogenesis system development multicellular organismal process regulation of biological process biological regulation regulation of multicellular organismal process developmental process animal organ development trachea morphogenesis multicellular organism development anatomical structure morphogenesis trachea development anatomical structure development respiratory system development animal organ morphogenesis system development regulation of developmental process regulation of cellular process RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of gene expression biosynthetic process cellular process metabolic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process chitin-based embryonic cuticle biosynthetic process chitin-based cuticle development cuticle development post-embryonic development	cytoplasmic side of apical plasma membrane cytoplasmic side of membrane membrane plasma membrane side of membrane cell periphery cellular anatomical structure apical part of cell cytoplasmic side of plasma membrane plasma membrane region apical plasma membrane intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR001132	SMAD domain	Domain
A	IPR017855	SMAD-like domain superfamily	Homologous Superfamily
A	IPR008984	SMAD/FHA domain superfamily	Homologous Superfamily

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.