Annotations: 2K3G

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2k3ga_	Small proteins	Snake toxin-like	Snake toxin-like	Extracellular domain of cell surface receptors	BMP receptor Ia ectodomain	(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)
A	SCOP2B Superfamily	Snake toxin-like	8042167	3000545	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	PF01064	e2k3gA1	A: few secondary structure elements	X: Snake toxin-like (From Topology)	H: Snake toxin-like (From Topology)	T: Snake toxin-like	F: PF01064	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.10.60.10	Mainly Beta	Ribbon	CD59	CD59	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF01064	Activin types I and II receptor domain (Activin_recp)	Activin types I and II receptor domain	This Pfam entry consists of both TGF-beta receptor types. This is an alignment of the hydrophilic cysteine-rich ligand-binding domains, Both receptor types, (type I and II) posses a 9 amino acid cysteine box, with the the consensus CCX{4-5}CN. The t ...	This Pfam entry consists of both TGF-beta receptor types. This is an alignment of the hydrophilic cysteine-rich ligand-binding domains, Both receptor types, (type I and II) posses a 9 amino acid cysteine box, with the the consensus CCX{4-5}CN. The type I receptors also possess 7 extracellular residues preceding the cysteine box.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Bone morphogenetic protein receptor type-1A	BMP binding protein binding binding cytokine binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding BMP binding protein binding binding cytokine binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding cation binding metal ion binding identical protein binding protein homodimerization activity protein dimerization activity SMAD binding protein serine/threonine kinase activity catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups BMP receptor activity molecular transducer activity signaling receptor activity transmembrane receptor protein serine/threonine kinase activity transmembrane receptor protein kinase activity transmembrane signaling receptor activity transforming growth factor beta receptor activity, type I transforming growth factor beta receptor activity	cellular response to stimulus positive regulation of cell communication cell surface receptor protein serine/threonine kinase signaling pathway regulation of cellular process positive regulation of signal transduction response to stimulus signaling regulation of transmembrane receptor protein serine/threonine kinase signaling pathway positive regulation of biological process regulation of signal transduction intracellular signal transduction cell communication positive regulation of response to stimulus regulation of intracellular signal transduction intracellular signaling cassette cellular response to stimulus positive regulation of cell communication cell surface receptor protein serine/threonine kinase signaling pathway regulation of cellular process positive regulation of signal transduction response to stimulus signaling regulation of transmembrane receptor protein serine/threonine kinase signaling pathway positive regulation of biological process regulation of signal transduction intracellular signal transduction cell communication positive regulation of response to stimulus regulation of intracellular signal transduction intracellular signaling cassette signal transduction enzyme-linked receptor protein signaling pathway positive regulation of cellular process regulation of biological process regulation of signaling cell surface receptor signaling pathway biological regulation positive regulation of intracellular signal transduction positive regulation of transmembrane receptor protein serine/threonine kinase signaling pathway SMAD protein signal transduction regulation of response to stimulus regulation of cell communication cellular process regulation of SMAD protein signal transduction positive regulation of SMAD protein signal transduction positive regulation of signaling regulation of cellular senescence cellular metabolic process cellular senescence regulation of cellular metabolic process cellular response to stress response to stress metabolic process regulation of metabolic process developmental process multicellular organism development multicellular organismal process dorsal/ventral pattern formation dorsal/ventral axis specification anatomical structure development pattern specification process axis specification regionalization heart development cardiac chamber morphogenesis animal organ development heart morphogenesis ventricular septum development circulatory system development anatomical structure morphogenesis cardiac septum development cardiac septum morphogenesis ventricular septum morphogenesis cardiac chamber development animal organ morphogenesis cardiac ventricle development system development negative regulation of locomotion regulation of cell motility regulation of smooth muscle cell migration negative regulation of biological process smooth muscle cell migration muscle cell migration negative regulation of smooth muscle cell migration regulation of locomotion regulation of cell migration negative regulation of cellular process negative regulation of cell motility cell migration cell motility locomotion negative regulation of cell migration cellular biosynthetic 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 regulation of biosynthetic 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 macromolecule metabolic process positive regulation of cellular biosynthetic process reproductive process sex differentiation developmental process involved in reproduction anatomical structure regression male sex differentiation Mullerian duct regression regulation of growth positive regulation of cell population proliferation regulation of cardiac muscle tissue growth regulation of developmental process developmental growth cardiac muscle cell proliferation organ growth striated muscle tissue development positive regulation of developmental process positive regulation of cardiac muscle cell proliferation regulation of organ growth regulation of heart growth regulation of cardiac muscle cell proliferation muscle cell proliferation regulation of multicellular organismal process cardiac muscle tissue growth muscle tissue development positive regulation of developmental growth striated muscle cell proliferation positive regulation of heart growth heart growth regulation of multicellular organismal development cell population proliferation regulation of developmental growth cardiac muscle tissue development positive regulation of organ growth growth tissue development positive regulation of growth regulation of cell population proliferation positive regulation of cardiac muscle tissue growth positive regulation of multicellular organismal process cellular developmental process negative regulation of developmental 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 cell differentiation regulation of biomineral tissue development regulation of bone mineralization positive regulation of ossification positive regulation of biomineral tissue development ossification biomineral tissue development bone mineralization positive regulation of bone mineralization regulation of ossification mesenchyme morphogenesis endocardial cushion morphogenesis mesenchyme development endocardial cushion formation tissue morphogenesis endocardial cushion development anatomical structure formation involved in morphogenesis regulation of transforming growth factor beta production regulation of transforming growth factor beta2 production positive regulation of transforming growth factor beta2 production cytokine production regulation of cytokine production transforming growth factor beta production transforming growth factor beta2 production positive regulation of transforming growth factor beta production positive regulation of cytokine production head development forebrain development endocrine system development pituitary gland development gland development brain development diencephalon development nervous system development central nervous system development regulation of primary metabolic process nucleobase-containing compound metabolic process DNA-templated transcription 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 primary metabolic process positive regulation of RNA metabolic process organic cyclic compound metabolic process organic cyclic compound biosynthetic process regulation of DNA-templated transcription positive regulation of DNA-templated transcription RNA metabolic process positive regulation of miRNA transcription positive regulation of miRNA metabolic process RNA biosynthetic process nucleic acid biosynthetic process miRNA transcription regulation of RNA biosynthetic process nucleobase-containing compound biosynthetic process nucleic acid metabolic process positive regulation of RNA biosynthetic process ncRNA metabolic process regulation of miRNA transcription embryo development ending in birth or egg hatching chordate embryonic development embryo development in utero embryonic development embryonic organ development outflow tract septum morphogenesis outflow tract morphogenesis lateral mesoderm development mesoderm development mesodermal cell differentiation lateral mesodermal cell fate specification mesoderm morphogenesis lateral mesoderm morphogenesis regulation of mesodermal cell fate specification regulation of lateral mesodermal cell fate specification regulation of mesodermal cell differentiation mesodermal cell fate commitment lateral mesoderm formation mesoderm formation regulation of anatomical structure morphogenesis mesodermal cell fate specification formation of primary germ layer regulation of animal organ morphogenesis regulation of cell fate commitment embryonic morphogenesis cell fate specification lateral mesodermal cell differentiation gastrulation cell fate commitment involved in formation of primary germ layer regulation of cell fate specification lateral mesodermal cell fate commitment cell fate commitment phosphorylation phosphate-containing compound metabolic process phosphorus metabolic process somatic stem cell population maintenance maintenance of cell number stem cell population maintenance cardiac muscle cell development cell development cardiac pacemaker cell development muscle cell development atrioventricular node development atrioventricular node cell development cardiac cell development cardiac conduction system development atrioventricular node cell differentiation cardiac muscle cell differentiation cardiocyte differentiation striated muscle cell differentiation cardiac pacemaker cell differentiation cardiac septum cell differentiation regulation of neurogenesis regulation of cell development regulation of nervous system development negative regulation of neurogenesis neurogenesis negative regulation of nervous system development negative regulation of cell development negative regulation of multicellular organismal process connective tissue development skeletal system development chondrocyte differentiation cartilage development atrioventricular valve development heart valve development mitral valve morphogenesis heart valve morphogenesis mitral valve development atrioventricular valve morphogenesis blood vessel morphogenesis tube development artery development pharyngeal arch artery morphogenesis vasculature development tube morphogenesis pharyngeal system development artery morphogenesis blood vessel development cardiac right ventricle morphogenesis cardiac ventricle morphogenesis transcription by RNA polymerase II regulation of transcription by RNA polymerase II positive regulation of transcription by RNA polymerase II neural plate pattern specification neural plate regionalization neural plate mediolateral regionalization cellular response to growth factor stimulus 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 ventricular cardiac muscle tissue morphogenesis ventricular cardiac muscle tissue development ventricular trabecula myocardium morphogenesis muscle organ development muscle tissue morphogenesis cardiac muscle tissue morphogenesis heart trabecula morphogenesis trabecula morphogenesis muscle organ morphogenesis osteoblast differentiation heart formation animal organ formation cellular response to BMP stimulus response to BMP BMP signaling pathway angiogenesis immune response immune system process somitogenesis epithelium development segmentation anterior/posterior pattern specification somite development odontogenesis of dentin-containing tooth odontogenesis generation of neurons central nervous system neuron differentiation neuron differentiation respiratory tube development lung development respiratory system development paraxial mesoderm structural organization mesoderm structural organization paraxial mesoderm development anatomical structure arrangement paraxial mesoderm morphogenesis regulation of vascular associated smooth muscle cell proliferation positive regulation of vascular associated smooth muscle cell proliferation regulation of smooth muscle cell proliferation smooth muscle cell proliferation positive regulation of smooth muscle cell proliferation vascular associated smooth muscle cell proliferation positive regulation of mesenchymal cell proliferation regulation of mesenchymal cell proliferation mesenchymal cell proliferation positive regulation of epithelial cell proliferation regulation of epithelial cell proliferation epithelial cell proliferation tricuspid valve development tricuspid valve morphogenesis regulation of osteoblast differentiation positive regulation of osteoblast differentiation positive regulation of cell differentiation fibrous ring of heart morphogenesis endoderm development mesendoderm development negative regulation of cellular metabolic process negative regulation of macromolecule metabolic process negative regulation of metabolic process negative regulation of cellular biosynthetic process negative regulation of gene expression negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process stem cell development neural crest cell differentiation neural crest cell development stem cell differentiation mesenchymal cell differentiation positive regulation of cardiac ventricle development regulation of cardiac ventricle development ventricular compact myocardium morphogenesis limb development appendage development appendage morphogenesis hindlimb morphogenesis limb morphogenesis roof of mouth development aorta morphogenesis aorta development dorsal aorta morphogenesis dorsal aorta development embryonic limb morphogenesis embryonic appendage morphogenesis embryonic digit morphogenesis ectoderm development	cell periphery cell surface membrane plasma membrane cellular anatomical entity external side of plasma membrane side of membrane protein-containing complex plasma membrane protein complex plasma membrane signaling receptor complex membrane protein complex HFE-transferrin receptor complex receptor complex somatodendritic compartment cell periphery cell surface membrane plasma membrane cellular anatomical entity external side of plasma membrane side of membrane protein-containing complex plasma membrane protein complex plasma membrane signaling receptor complex membrane protein complex HFE-transferrin receptor complex receptor complex somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection cell body neuronal cell body

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR000472	Activin types I and II receptor domain	Domain
A	IPR000719	Protein kinase domain	Domain
A	IPR003605	GS domain	Domain
A	IPR000333	Ser/Thr protein kinase, TGFB receptor	Family
A	IPR017441	Protein kinase, ATP binding site	Binding Site
A	IPR045860	Snake toxin-like superfamily	Homologous Superfamily
A	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
A	IPR008271	Serine/threonine-protein kinase, active site	Active Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P36894	polyposis syndrome, hereditary mixed, 2 generalized juvenile polyposis/juvenile polyposis coli juvenile polyposis syndrome Craniofacial Abnormalities polyposis syndrome, hereditary mixed, 1 malignant ependymoma pilocytic astrocytoma psoriasis astrocytic tumor cancer osteosarcoma atypical teratoid rhabdoid tumor colorectal cancer gastric adenocarcinoma Lynch syndrome polyposis syndrome, hereditary mixed, 2 generalized juvenile polyposis/juvenile polyposis coli juvenile polyposis syndrome Craniofacial Abnormalities polyposis syndrome, hereditary mixed, 1 malignant ependymoma pilocytic astrocytoma psoriasis astrocytic tumor cancer osteosarcoma atypical teratoid rhabdoid tumor colorectal cancer gastric adenocarcinoma Lynch syndrome ovarian cancer Cowden disease familial colorectal cancer type X

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 R01GM133198.