1KHU

Smad1 crystal structure reveals the details of BMP signaling pathway

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
C	d1khuc_	All beta proteins	SMAD/FHA domain	SMAD/FHA domain	SMAD domain	Smad1	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D	d1khud_	All beta proteins	SMAD/FHA domain	SMAD/FHA domain	SMAD domain	Smad1	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d1khua_	All beta proteins	SMAD/FHA domain	SMAD/FHA domain	SMAD domain	Smad1	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1khub_	All beta proteins	SMAD/FHA domain	SMAD/FHA domain	SMAD domain	Smad1	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C	SCOP2B Superfamily	SMAD/FHA domain-like	8038245	3000137	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	SMAD/FHA domain-like	8038245	3000137	SCOP2B (2022-06-29)
A	SCOP2 Family	SMAD domain	8025866	4002600	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	SMAD/FHA domain-like	8038245	3000137	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	SMAD/FHA domain-like	8038245	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)
C	MH2	e1khuC1	A: beta sandwiches	X: SMAD/FHA domain (From Topology)	H: SMAD/FHA domain (From Topology)	T: SMAD/FHA domain	F: MH2	ECOD (1.6)
D	MH2	e1khuD1	A: beta sandwiches	X: SMAD/FHA domain (From Topology)	H: SMAD/FHA domain (From Topology)	T: SMAD/FHA domain	F: MH2	ECOD (1.6)
A	MH2	e1khuA1	A: beta sandwiches	X: SMAD/FHA domain (From Topology)	H: SMAD/FHA domain (From Topology)	T: SMAD/FHA domain	F: MH2	ECOD (1.6)
B	MH2	e1khuB1	A: beta sandwiches	X: SMAD/FHA domain (From Topology)	H: SMAD/FHA domain (From Topology)	T: SMAD/FHA domain	F: MH2	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C	2.60.200.10	Mainly Beta	Sandwich	Tumour Suppressor Smad4		CATH (4.3.0)
D	2.60.200.10	Mainly Beta	Sandwich	Tumour Suppressor Smad4		CATH (4.3.0)
A	2.60.200.10	Mainly Beta	Sandwich	Tumour Suppressor Smad4		CATH (4.3.0)
B	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, B, C, D	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, B, C, D	SMAD1	co-SMAD binding SMAD binding protein binding binding RNA binding primary miRNA binding organic cyclic compound binding nucleic acid binding DNA-binding transcription factor activity, RNA polymerase II-specific transcription regulator activity DNA-binding transcription factor activity I-SMAD binding enzyme binding DEAD/H-box RNA helicase binding co-SMAD binding SMAD binding protein binding binding RNA binding primary miRNA binding organic cyclic compound binding nucleic acid binding DNA-binding transcription factor activity, RNA polymerase II-specific transcription regulator activity DNA-binding transcription factor activity I-SMAD binding enzyme binding DEAD/H-box RNA helicase binding ubiquitin protein ligase binding ubiquitin-like protein ligase binding DNA-binding transcription activator activity, RNA polymerase II-specific DNA-binding transcription activator activity cation binding ion binding metal ion binding small molecule binding identical protein binding DNA binding sequence-specific DNA binding double-stranded DNA binding RNA polymerase II transcription regulatory region sequence-specific DNA binding cis-regulatory region sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding transcription regulatory region nucleic acid binding RNA polymerase II cis-regulatory region sequence-specific DNA binding kinase binding protein kinase binding	developmental process multicellular organism development multicellular organismal process skeletal system development connective tissue development anatomical structure development animal organ development tissue development cartilage development system development head development brain development nervous system development central nervous system development developmental process multicellular organism development multicellular organismal process skeletal system development connective tissue development anatomical structure development animal organ development tissue development cartilage development system development head development brain development nervous system development central nervous system development hindbrain development heart development heart growth cell population proliferation developmental growth cardiac muscle tissue development cardiac muscle cell proliferation growth organ growth striated muscle tissue development circulatory system development muscle cell proliferation cellular process cardiac muscle tissue growth muscle tissue development striated muscle cell proliferation regulation of cellular process cellular biosynthetic process positive regulation of biological process positive regulation of cellular metabolic process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process organic substance metabolic process positive regulation of biosynthetic process organic substance biosynthetic process positive regulation of macromolecule metabolic process positive regulation of cellular process regulation of biosynthetic process regulation of biological process cellular metabolic process biological regulation regulation of cellular metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of cellular biosynthetic process regulation of gene expression biosynthetic process positive regulation of gene expression regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process regulation of metabolic process positive regulation of cellular biosynthetic process bone development regulation of developmental process cellular developmental process negative regulation of developmental process negative regulation of biological process negative regulation of muscle cell differentiation regulation of cell differentiation muscle cell differentiation muscle structure development regulation of muscle cell differentiation cell differentiation negative regulation of cellular process negative regulation of cell differentiation RNA metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process heterocycle metabolic process nitrogen compound metabolic process cellular nitrogen compound metabolic process primary metabolic process nucleobase-containing compound biosynthetic process heterocycle biosynthetic process nucleic acid metabolic process organic cyclic compound metabolic process aromatic compound biosynthetic process organic cyclic compound biosynthetic process cellular aromatic compound metabolic process regulation of ncRNA transcription regulation of primary metabolic process regulation of nitrogen compound metabolic process regulation of RNA metabolic process regulation of miRNA metabolic process regulation of nucleobase-containing compound metabolic process miRNA metabolic process positive regulation of nucleobase-containing compound metabolic process positive regulation of RNA metabolic process regulation of DNA-templated transcription positive regulation of DNA-templated transcription positive regulation of miRNA transcription positive regulation of miRNA metabolic process miRNA transcription regulation of RNA biosynthetic process ncRNA transcription positive regulation of nitrogen compound metabolic process positive regulation of RNA biosynthetic process ncRNA metabolic process regulation of miRNA transcription cellular response to stimulus response to stimulus signaling intracellular signal transduction cell communication intracellular signaling cassette MAPK cascade signal transduction ossification transcription by RNA polymerase II regulation of transcription by RNA polymerase II positive regulation of transcription by RNA polymerase II response to organic substance cellular response to chemical stimulus response to chemical cellular response to organic cyclic compound cellular response to organic substance response to organic cyclic compound cellular response to growth factor stimulus cell surface receptor protein serine/threonine kinase signaling pathway cell surface receptor signaling pathway cellular response to transforming growth factor beta stimulus response to endogenous stimulus cellular response to endogenous stimulus response to transforming growth factor beta transforming growth factor beta receptor signaling pathway response to growth factor transforming growth factor beta receptor superfamily signaling pathway enzyme-linked receptor protein signaling pathway regulation of cartilage development regulation of multicellular organismal development positive regulation of developmental process positive regulation of multicellular organismal process positive regulation of cartilage development regulation of multicellular organismal process midbrain development cellular response to BMP stimulus response to BMP BMP signaling pathway sexual reproduction reproductive process multicellular organismal reproductive process gamete generation osteoblast fate commitment cell fate commitment osteoblast differentiation anatomical structure morphogenesis formation of primary germ layer mesodermal cell differentiation mesoderm morphogenesis embryonic morphogenesis embryo development gastrulation cell fate commitment involved in formation of primary germ layer tissue morphogenesis anatomical structure formation involved in morphogenesis mesodermal cell fate commitment mesoderm formation mesoderm development ureteric bud development mesonephric epithelium development epithelium development kidney epithelium development mesonephros development tube development renal system development kidney development mesonephric tubule development SMAD protein signal transduction cardiac conduction system development negative regulation of cell population proliferation regulation of cell population proliferation regulation of osteoblast differentiation positive regulation of osteoblast differentiation positive regulation of cell differentiation regulation of sprouting angiogenesis angiogenesis regulation of vasculature development tube morphogenesis positive regulation of sprouting angiogenesis regulation of anatomical structure morphogenesis blood vessel development blood vessel morphogenesis positive regulation of angiogenesis sprouting angiogenesis vasculature development positive regulation of vasculature development regulation of angiogenesis negative regulation of cellular metabolic process RNA processing negative regulation of macromolecule metabolic process negative regulation of metabolic process negative regulation of cellular biosynthetic process regulatory ncRNA processing regulatory ncRNA-mediated gene silencing primary miRNA processing negative regulation of gene expression negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process miRNA processing defense response response to stress inflammatory response embryonic pattern specification pattern specification process homeostatic process	membrane cellular anatomical entity intracellular anatomical structure cytoplasm cytosol intracellular organelle protein-containing complex protein-DNA complex organelle intracellular non-membrane-bounded organelle chromatin chromosome non-membrane-bounded organelle RNA polymerase II transcription regulator complex membrane cellular anatomical entity intracellular anatomical structure cytoplasm cytosol intracellular organelle protein-containing complex protein-DNA complex organelle intracellular non-membrane-bounded organelle chromatin chromosome non-membrane-bounded organelle RNA polymerase II transcription regulator complex membrane-bounded organelle nucleus heteromeric SMAD protein complex nuclear protein-containing complex transcription regulator complex intracellular membrane-bounded organelle SMAD protein complex organelle inner membrane nuclear membrane endomembrane system organelle envelope nuclear inner membrane nuclear envelope organelle membrane membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen homomeric SMAD protein complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR036578	SMAD MH1 domain superfamily	Homologous Superfamily
A, B, C, D	IPR017855	SMAD-like domain superfamily	Homologous Superfamily
A, B, C, D	IPR013019	MAD homology, MH1	Domain
A, B, C, D	IPR013790	Dwarfin	Family
A, B, C, D	IPR003619	MAD homology 1, Dwarfin-type	Domain
A, B, C, D	IPR008984	SMAD/FHA domain superfamily	Homologous Superfamily
A, B, C, D	IPR001132	SMAD domain, Dwarfin-type	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C, D	Pharos: Q15797	psoriasis acute myeloid leukemia astrocytic tumor Emery-Dreifuss muscular dystrophy juvenile dermatomyositis medulloblastoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm pulmonary arterial hypertension adrenoleukodystrophy cystic fibrosis glioblastoma malignant ependymoma myopathy pancreatic ductal adenocarcinoma psoriasis acute myeloid leukemia astrocytic tumor Emery-Dreifuss muscular dystrophy juvenile dermatomyositis medulloblastoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm pulmonary arterial hypertension adrenoleukodystrophy cystic fibrosis glioblastoma malignant ependymoma myopathy pancreatic ductal adenocarcinoma Pick disease tuberculosis amyotrophic lateral sclerosis Duchenne muscular dystrophy idiopathic pulmonary arterial hypertension malignant glioma oligodendroglioma pancreatic intraductal papillary-mucinous carcinoma

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.