Annotations: 7WZ6

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	HLH, helix-loop-helix DNA-binding domain	8076580	3001962	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)
B	7tm_1	e7wz6B1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: 7tm_1	ECOD (v294.1)
A	7tm_1	e7wz6A1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: 7tm_1	ECOD (v294.1)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00010	Helix-loop-helix DNA-binding domain (HLH)	Helix-loop-helix DNA-binding domain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	Myoblast determination protein 1	sequence-specific DNA binding DNA binding binding nucleic acid binding chromatin binding promoter-specific chromatin binding DNA-binding transcription factor activity, RNA polymerase II-specific transcription regulator activity DNA-binding transcription factor activity sequence-specific double-stranded DNA binding transcription cis-regulatory region binding double-stranded DNA binding cis-regulatory region sequence-specific DNA binding transcription regulatory region nucleic acid binding sequence-specific DNA binding DNA binding binding nucleic acid binding chromatin binding promoter-specific chromatin binding DNA-binding transcription factor activity, RNA polymerase II-specific transcription regulator activity DNA-binding transcription factor activity sequence-specific double-stranded DNA binding transcription cis-regulatory region binding double-stranded DNA binding cis-regulatory region sequence-specific DNA binding transcription regulatory region nucleic acid binding ubiquitin protein ligase binding protein binding ubiquitin-like protein ligase binding enzyme binding DNA-binding transcription activator activity, RNA polymerase II-specific DNA-binding transcription activator activity transcription factor binding bHLH transcription factor binding DNA-binding transcription factor binding RNA polymerase II-specific DNA-binding transcription factor binding RNA polymerase II transcription regulatory region sequence-specific DNA binding RNA polymerase II cis-regulatory region sequence-specific DNA binding identical protein binding protein homodimerization activity protein dimerization activity chromatin DNA binding E-box binding nuclear receptor binding	developmental process regulation of biological process regulation of cellular process regulation of developmental process cellular developmental process biological regulation positive regulation of biological process regulation of cell differentiation positive regulation of myoblast differentiation muscle structure development positive regulation of developmental process positive regulation of cell differentiation cell differentiation anatomical structure development developmental process regulation of biological process regulation of cellular process regulation of developmental process cellular developmental process biological regulation positive regulation of biological process regulation of cell differentiation positive regulation of myoblast differentiation muscle structure development positive regulation of developmental process positive regulation of cell differentiation cell differentiation anatomical structure development regulation of myoblast differentiation cellular process myoblast differentiation positive regulation of cellular process myotube cell development cell development muscle cell differentiation myotube differentiation striated muscle cell development muscle cell development striated muscle cell differentiation regulation of biosynthetic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of gene expression biosynthetic process regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process regulation of metabolic process heart development multicellular organismal process cardiac muscle tissue development cardiac muscle cell differentiation animal organ development tissue development cardiocyte differentiation striated muscle tissue development circulatory system development multicellular organism development muscle tissue development system development muscle organ development skeletal muscle cell differentiation skeletal muscle tissue development skeletal muscle organ development cell fate determination myoblast fate determination cell fate commitment myoblast fate commitment cellular response to stimulus cellular response to nutrient levels response to nutrient levels response to stimulus cellular response to stress response to stress response to starvation cellular response to starvation striated muscle adaptation system process muscle adaptation skeletal muscle adaptation skeletal muscle fiber adaptation muscle system process myoblast fusion cell-cell fusion syncytium formation by cell-cell fusion positive regulation of cellular component organization regulation of cellular component organization regulation of syncytium formation by plasma membrane fusion cellular component organization cellular component organization or biogenesis positive regulation of myoblast fusion regulation of myoblast fusion positive regulation of syncytium formation by plasma membrane fusion positive regulation of DNA-templated transcription RNA metabolic process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase II positive regulation of biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of transcription by RNA polymerase II primary metabolic process positive regulation of transcription by RNA polymerase II nucleobase-containing compound biosynthetic process nucleic acid metabolic process positive regulation of RNA metabolic process positive regulation of RNA biosynthetic process regulation of DNA-templated transcription skeletal muscle fiber development positive regulation of muscle cell differentiation regulation of muscle cell differentiation alternative mRNA splicing, via spliceosome regulation of mRNA splicing, via spliceosome mRNA processing RNA processing regulation of mRNA processing RNA splicing regulation of RNA splicing mRNA metabolic process RNA splicing, via transesterification reactions regulation of alternative mRNA splicing, via spliceosome mRNA splicing, via spliceosome RNA splicing, via transesterification reactions with bulged adenosine as nucleophile regulation of mRNA metabolic process positive regulation of snRNA transcription by RNA polymerase II snRNA metabolic process regulation of snRNA transcription by RNA polymerase II snRNA transcription by RNA polymerase II snRNA transcription cellular response to chemical stimulus cellular response to oxygen levels response to chemical response to oxygen levels response to abiotic stimulus positive regulation of skeletal muscle tissue regeneration tissue regeneration regulation of growth skeletal muscle tissue regeneration regulation of response to external stimulus developmental growth regeneration regulation of multicellular organismal process positive regulation of developmental growth regulation of multicellular organismal development regulation of developmental growth growth response to external stimulus positive regulation of growth regulation of response to stimulus regulation of skeletal muscle tissue regeneration response to peptide cellular response to tumor necrosis factor response to cytokine cellular response to cytokine stimulus response to tumor necrosis factor positive regulation of skeletal muscle tissue development regulation of skeletal muscle tissue development regulation of cell development positive regulation of muscle organ development regulation of skeletal muscle fiber development positive regulation of skeletal muscle fiber development positive regulation of striated muscle tissue development positive regulation of cell development regulation of striated muscle tissue development positive regulation of muscle tissue development positive regulation of multicellular organismal process regulation of muscle tissue development regulation of striated muscle cell differentiation regulation of myotube differentiation positive regulation of striated muscle cell differentiation regulation of muscle organ development myotube differentiation involved in skeletal muscle regeneration response to lipid response to oxygen-containing compound cellular response to oxygen-containing compound cellular response to lipid response to estradiol cellular response to estradiol stimulus myoblast proliferation negative regulation of cell population proliferation cell population proliferation negative regulation of biological process regulation of myoblast proliferation regulation of cell population proliferation negative regulation of cellular process negative regulation of myoblast proliferation response to endogenous stimulus response to glucocorticoid cellular response to glucocorticoid stimulus cellular response to corticosteroid stimulus cellular response to endogenous stimulus response to corticosteroid response to hormone response to steroid hormone cellular response to steroid hormone stimulus cellular response to hormone stimulus	protein-containing complex transcription regulator complex cellular anatomical structure intracellular anatomical structure cytoplasm intracellular organelle organelle membraneless organelle intracellular membraneless organelle chromatin chromosome membrane-bounded organelle nucleus membrane-enclosed lumen protein-containing complex transcription regulator complex cellular anatomical structure intracellular anatomical structure cytoplasm intracellular organelle organelle membraneless organelle intracellular membraneless organelle chromatin chromosome membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen contractile muscle fiber supramolecular fiber myofibril supramolecular polymer supramolecular complex euchromatin
A	Isoform E47 of Transcription factor E2-alpha	sequence-specific DNA binding DNA binding binding nucleic acid binding DNA-binding transcription factor activity, RNA polymerase II-specific transcription regulator activity DNA-binding transcription factor activity sequence-specific double-stranded DNA binding transcription cis-regulatory region binding double-stranded DNA binding cis-regulatory region sequence-specific DNA binding transcription regulatory region nucleic acid binding protein binding kinase binding sequence-specific DNA binding DNA binding binding nucleic acid binding DNA-binding transcription factor activity, RNA polymerase II-specific transcription regulator activity DNA-binding transcription factor activity sequence-specific double-stranded DNA binding transcription cis-regulatory region binding double-stranded DNA binding cis-regulatory region sequence-specific DNA binding transcription regulatory region nucleic acid binding protein binding kinase binding mitogen-activated protein kinase kinase kinase binding enzyme binding protein kinase binding DNA-binding transcription activator activity, RNA polymerase II-specific DNA-binding transcription activator activity transcription factor binding bHLH transcription factor binding DNA-binding transcription factor binding identical protein binding vitamin D response element binding RNA polymerase II transcription regulatory region sequence-specific DNA binding RNA polymerase II cis-regulatory region sequence-specific DNA binding DNA-binding transcription repressor activity, RNA polymerase II-specific DNA-binding transcription repressor activity RNA polymerase II-specific DNA-binding transcription factor binding PDZ domain binding protein domain specific binding chromatin binding protein heterodimerization activity protein dimerization activity protein homodimerization activity E-box binding	response to stimulus response to chemical response to xenobiotic stimulus regulation of protein stability biological regulation regulation of biological quality protein stabilization developmental process multicellular organismal process cellular developmental process hemopoiesis B cell activation cell activation cell development response to stimulus response to chemical response to xenobiotic stimulus regulation of protein stability biological regulation regulation of biological quality protein stabilization developmental process multicellular organismal process cellular developmental process hemopoiesis B cell activation cell activation cell development B cell lineage commitment mononuclear cell differentiation lymphocyte differentiation lymphocyte activation leukocyte activation B cell differentiation cell differentiation immune system process anatomical structure development cellular process cell fate commitment leukocyte differentiation regulation of biosynthetic process regulation of biological process regulation of cellular process positive regulation of biological process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process positive regulation of macromolecule biosynthetic process regulation of gene expression positive regulation of metabolic process biosynthetic process positive regulation of gene expression positive regulation of biosynthetic process regulation of macromolecule biosynthetic process metabolic process positive regulation of macromolecule metabolic process macromolecule metabolic process regulation of metabolic process positive regulation of cellular process T cell differentiation in thymus T cell activation T cell differentiation 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 primary metabolic process nucleobase-containing compound biosynthetic process nucleic acid metabolic process regulation of DNA-templated transcription multicellular organism development nervous system development system development positive regulation of cell population proliferation positive regulation of B cell proliferation regulation of leukocyte activation regulation of cell activation leukocyte proliferation positive regulation of lymphocyte activation positive regulation of cell activation regulation of B cell proliferation lymphocyte proliferation regulation of B cell activation positive regulation of leukocyte activation positive regulation of mononuclear cell proliferation regulation of immune system process regulation of multicellular organismal process positive regulation of immune system process regulation of lymphocyte proliferation regulation of leukocyte proliferation cell population proliferation positive regulation of lymphocyte proliferation B cell proliferation positive regulation of B cell activation regulation of cell population proliferation mononuclear cell proliferation positive regulation of leukocyte proliferation regulation of mononuclear cell proliferation positive regulation of multicellular organismal process regulation of lymphocyte activation negative regulation of biological process negative regulation of RNA biosynthetic process transcription by RNA polymerase II negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process negative regulation of macromolecule metabolic process regulation of transcription by RNA polymerase II negative regulation of DNA-templated transcription negative regulation of transcription by RNA polymerase II negative regulation of metabolic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process negative regulation of RNA metabolic process natural killer cell activation natural killer cell differentiation positive regulation of DNA-templated transcription positive regulation of transcription by RNA polymerase II positive regulation of RNA metabolic process positive regulation of RNA biosynthetic process cell cycle regulation of cell cycle positive regulation of cell cycle anatomical structure morphogenesis embryonic morphogenesis embryo development gastrulation regulation of developmental process regulation of cell differentiation positive regulation of neuron differentiation positive regulation of developmental process neurogenesis neuron differentiation positive regulation of cell differentiation generation of neurons regulation of neuron differentiation regulation of cell cycle phase transition regulation of cell cycle process cell cycle phase transition regulation of cell cycle G1/S phase transition cell cycle G1/S phase transition mitotic cell cycle regulation of mitotic cell cycle phase transition regulation of mitotic cell cycle regulation of G1/S transition of mitotic cell cycle mitotic cell cycle process G1/S transition of mitotic cell cycle cell cycle process mitotic cell cycle phase transition immune system development immunoglobulin production somatic cell DNA recombination somatic recombination of immunoglobulin gene segments V(D)J recombination somatic diversification of immune receptors production of molecular mediator of immune response DNA recombination DNA metabolic process somatic diversification of immunoglobulins immunoglobulin V(D)J recombination somatic diversification of immune receptors via germline recombination within a single locus animal organ development hematopoietic or lymphoid organ development tissue development Peyer's patch development mucosa-associated lymphoid tissue development biological process involved in interspecies interaction between organisms response to lipid response to other organism response to oxygen-containing compound response to external stimulus response to lipopolysaccharide response to biotic stimulus response to bacterium response to external biotic stimulus response to molecule of bacterial origin cellular component organization chromatin organization chromatin remodeling cellular component organization or biogenesis	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol protein-containing complex transcription regulator complex intracellular organelle organelle membraneless organelle intracellular membraneless organelle chromatin chromosome RNA polymerase II transcription regulator complex membrane-bounded organelle cellular anatomical structure intracellular anatomical structure cytoplasm cytosol protein-containing complex transcription regulator complex intracellular organelle organelle membraneless organelle intracellular membraneless organelle chromatin chromosome RNA polymerase II transcription regulator complex membrane-bounded organelle nucleus nuclear protein-containing complex intracellular membrane-bounded organelle protein-DNA complex nucleosome membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen euchromatin

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR022032	Myogenic determination factor 5	Domain
B	IPR036638	Helix-loop-helix DNA-binding domain superfamily	Homologous Superfamily
B	IPR002546	Myogenic muscle-specific protein, N-terminal	Domain
B	IPR039704	Myogenic factor	Family
B	IPR011598	Myc-type, basic helix-loop-helix (bHLH) domain	Domain
A	IPR051098	Neuronal Differentiation E-box Binding Transcription Factors	Family
A	IPR036638	Helix-loop-helix DNA-binding domain superfamily	Homologous Superfamily
A	IPR011598	Myc-type, basic helix-loop-helix (bHLH) domain	Domain

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.