2LB1

Structure of the second domain of human Smurf1 in complex with a human Smad1 derived peptide

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Protein Modification Annotation

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	WW domain	8081422	4002695	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	WW domain	8081423	3001621	SCOP2 (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	PF00397	e2lb1A1	A: beta meanders	X: WW domain-like	H: WW domain (From Topology)	T: WW domain	F: PF00397	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00397	WW domain (WW)	WW domain	The WW domain is a protein module with two highly conserved tryptophans that binds proline-rich peptide motifs in vitro.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	E3 ubiquitin-protein ligase SMURF1	SMAD binding protein binding binding R-SMAD binding activin receptor binding receptor serine/threonine kinase binding signaling receptor binding transmembrane receptor protein serine/threonine kinase binding phospholipid binding lipid binding aminoacyltransferase activity ubiquitin-like protein transferase activity catalytic activity, acting on a protein acyltransferase activity SMAD binding protein binding binding R-SMAD binding activin receptor binding receptor serine/threonine kinase binding signaling receptor binding transmembrane receptor protein serine/threonine kinase binding phospholipid binding lipid binding aminoacyltransferase activity ubiquitin-like protein transferase activity catalytic activity, acting on a protein acyltransferase activity ubiquitin-like protein ligase activity ubiquitin protein ligase activity transferase activity catalytic activity ubiquitin-protein transferase activity transforming growth factor beta receptor binding cytokine receptor binding I-SMAD binding	developmental process cellular developmental process cell differentiation cellular process cellular response to stimulus cellular response to BMP stimulus regulation of biological process cell surface receptor protein serine/threonine kinase signaling pathway regulation of cellular process cellular response to growth factor stimulus cell surface receptor signaling pathway response to stimulus signaling response to endogenous stimulus developmental process cellular developmental process cell differentiation cellular process cellular response to stimulus cellular response to BMP stimulus regulation of biological process cell surface receptor protein serine/threonine kinase signaling pathway regulation of cellular process cellular response to growth factor stimulus cell surface receptor signaling pathway response to stimulus signaling response to endogenous stimulus biological regulation cell communication cellular response to endogenous stimulus response to BMP transforming growth factor beta receptor superfamily signaling pathway signal transduction response to growth factor BMP signaling pathway enzyme-linked receptor protein signaling pathway activin receptor signaling pathway negative regulation of signaling regulation of transmembrane receptor protein serine/threonine kinase signaling pathway negative regulation of biological process regulation of signal transduction negative regulation of cell communication negative regulation of activin receptor signaling pathway negative regulation of cellular process regulation of signaling negative regulation of response to stimulus negative regulation of signal transduction regulation of response to stimulus regulation of cell communication regulation of activin receptor signaling pathway negative regulation of transmembrane receptor protein serine/threonine kinase signaling pathway protein localization cellular localization establishment of protein localization nitrogen compound transport nucleocytoplasmic transport transport nuclear transport organic substance transport intracellular transport protein export from nucleus establishment of localization localization protein transport establishment of localization in cell cellular macromolecule localization macromolecule localization nuclear export intracellular protein transport catabolic process positive regulation of protein metabolic process proteolysis involved in protein catabolic process positive regulation of biological process macromolecule catabolic process regulation of ubiquitin-dependent protein catabolic process regulation of primary metabolic process positive regulation of metabolic process organic substance metabolic process positive regulation of ubiquitin-dependent protein catabolic process regulation of proteolysis regulation of proteolysis involved in protein catabolic process modification-dependent macromolecule catabolic process proteolysis positive regulation of macromolecule metabolic process protein metabolic process organonitrogen compound catabolic process organonitrogen compound metabolic process regulation of protein metabolic process primary metabolic process regulation of macromolecule metabolic process protein catabolic process regulation of catabolic process positive regulation of proteolysis involved in protein catabolic process positive regulation of catabolic process modification-dependent protein catabolic process positive regulation of proteolysis metabolic process ubiquitin-dependent protein catabolic process macromolecule metabolic process regulation of metabolic process organic substance catabolic process axon extension multicellular organismal process positive regulation of nervous system development regulation of growth axonogenesis regulation of cellular component size developmental growth cell projection organization regulation of cell differentiation regulation of neurogenesis neuron projection development regulation of cell development positive regulation of developmental process multicellular organism development cell projection morphogenesis neuron differentiation neuron projection morphogenesis anatomical structure development positive regulation of cell projection organization regulation of biological quality positive regulation of developmental growth system development regulation of cell projection organization positive regulation of cell development nervous system development developmental growth involved in morphogenesis generation of neurons positive regulation of multicellular organismal process regulation of neuron projection development regulation of cellular component organization positive regulation of cellular component organization regulation of developmental process plasma membrane bounded cell projection morphogenesis cell development cell growth cell morphogenesis regulation of axon extension cellular component organization regulation of nervous system development neurogenesis regulation of extent of cell growth positive regulation of cell differentiation regulation of axonogenesis positive regulation of neurogenesis regulation of multicellular organismal process positive regulation of axon extension cellular component organization or biogenesis positive regulation of cellular process positive regulation of axonogenesis regulation of anatomical structure morphogenesis regulation of cell size neuron projection extension regulation of multicellular organismal development regulation of developmental growth plasma membrane bounded cell projection organization developmental cell growth growth positive regulation of cell growth axon development regulation of cell growth cell morphogenesis involved in neuron differentiation anatomical structure morphogenesis positive regulation of growth neuron development regulation of plasma membrane bounded cell projection organization regulation of anatomical structure size protein localization to cell periphery protein localization to plasma membrane localization within membrane protein localization to membrane protein targeting to vacuole involved in autophagy protein targeting autophagy establishment of protein localization to vacuole cellular catabolic process process utilizing autophagic mechanism protein targeting to vacuole cellular metabolic process protein localization to vacuole establishment of protein localization to organelle protein localization to organelle vacuolar transport protein ubiquitination macromolecule modification post-translational protein modification protein modification process protein modification by small protein conjugation protein modification by small protein conjugation or removal negative regulation of cellular response to growth factor stimulus negative regulation of BMP signaling pathway regulation of BMP signaling pathway regulation of cellular response to growth factor stimulus proteasomal protein catabolic process proteasome-mediated ubiquitin-dependent protein catabolic process Wnt signaling pathway, planar cell polarity pathway non-canonical Wnt signaling pathway Wnt signaling pathway protein polyubiquitination negative regulation of transforming growth factor beta receptor signaling pathway cellular response to transforming growth factor beta stimulus regulation of transforming growth factor beta receptor signaling pathway regulation of cellular response to transforming growth factor beta stimulus response to transforming growth factor beta transforming growth factor beta receptor signaling pathway substrate localization to autophagosome autophagosome assembly organelle assembly vacuole organization macroautophagy autophagosome organization cellular component biogenesis organelle organization cellular component assembly membrane organization engulfment of target by autophagosome membrane invagination ectoderm development tissue development regulation of cell morphogenesis positive regulation of dendrite extension dendrite extension regulation of dendrite extension receptor catabolic process receptor metabolic process	extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space cellular anatomical entity vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol cell periphery extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space cellular anatomical entity vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen nuclear lumen somatodendritic compartment cell body neuronal cell body axon cell projection neuron projection plasma membrane bounded cell projection
B	Mothers against decapentaplegic homolog 1	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 primary metabolic process nucleobase-containing compound biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription organic cyclic compound metabolic process nucleic acid biosynthetic process organic cyclic compound biosynthetic process regulation of primary 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 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	IPR035983	HECT, E3 ligase catalytic domain	Homologous Superfamily
A	IPR036020	WW domain superfamily	Homologous Superfamily
A	IPR000008	C2 domain	Domain
A	IPR000569	HECT domain	Domain
A	IPR024928	E3 ubiquitin-protein ligase, SMURF1 type	Family
A	IPR035892	C2 domain superfamily	Homologous Superfamily
A	IPR001202	WW domain	Domain
B	IPR036578	SMAD MH1 domain superfamily	Homologous Superfamily
B	IPR017855	SMAD-like domain superfamily	Homologous Superfamily
B	IPR013019	MAD homology, MH1	Domain
B	IPR013790	Dwarfin	Family
B	IPR003619	MAD homology 1, Dwarfin-type	Domain
B	IPR008984	SMAD/FHA domain superfamily	Homologous Superfamily
B	IPR001132	SMAD domain, Dwarfin-type	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q9HCE7	acute myeloid leukemia non-small cell lung carcinoma tuberculosis inflammatory bowel disease pancreatic intraductal papillary-mucinous neoplasm ulcerative colitis lung cancer subependymal giant cell astrocytoma
B	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

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
B	NH2	RESID: AA0081 , AA0083 , AA0084 , AA0086 , AA0087 , AA0088 , AA0090 , AA0091 , AA0092 , AA0093 , AA0095 , AA0096 , AA0097 , AA0098 , AA0099 , AA0100 PSI-MOD : L-alanine amide MOD:00090 , L-asparagine amide MOD:00092 , L-aspartic acid 1-amide MOD:00093 , L-glutamine amide MOD:00095 , L-glutamic acid 1-amide MOD:00096 , glycine amide MOD:00097 , L-isoleucine amide MOD:00099 , L-leucine amide MOD:00100 , L-lysine amide MOD:00101 , L-methionine amide MOD:00102 , L-proline amide MOD:00104 , L-serine amide MOD:00105 , L-threonine amide MOD:00106 , L-tryptophan amide MOD:00107 , L-tyrosine amide MOD:00108 , L-valine amide MOD:00109

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.