1KQL

Crystal structure of the C-terminal region of striated muscle alpha-tropomyosin at 2.7 angstrom resolution

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1kqla_	Coiled coil proteins	Parallel coiled-coil	Tropomyosin	Tropomyosin	Tropomyosin	baker's yeast, Norway rat (Saccharomyces cerevisiae ) [TaxId: 4932 ], baker's yeast, Norway rat (Rattus norvegicus ) [TaxId: 10116 ],	SCOPe (2.08)
B	d1kqlb_	Coiled coil proteins	Parallel coiled-coil	Tropomyosin	Tropomyosin	Tropomyosin	baker's yeast, Norway rat (Saccharomyces cerevisiae ) [TaxId: 4932 ], baker's yeast, Norway rat (Rattus norvegicus ) [TaxId: 10116 ],	SCOPe (2.08)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.5.170	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
B	1.20.5.170	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00261	Tropomyosin (Tropomyosin)	Tropomyosin	-	Coiled-coil
A, B	PF07716	Basic region leucine zipper (bZIP_2)	Basic region leucine zipper	-	Coiled-coil

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Fusion Protein of and striated muscle alpha-tropomyosin and the GCN4 leucine zipper	TFIID-class transcription factor complex binding transcription factor binding basal transcription machinery binding protein-containing complex binding protein binding binding basal RNA polymerase II transcription machinery binding general transcription initiation factor binding RNA polymerase II general transcription initiation factor binding RNA polymerase II-specific DNA-binding transcription factor binding DNA-binding transcription factor binding DNA binding sequence-specific DNA binding double-stranded DNA binding TFIID-class transcription factor complex binding transcription factor binding basal transcription machinery binding protein-containing complex binding protein binding binding basal RNA polymerase II transcription machinery binding general transcription initiation factor binding RNA polymerase II general transcription initiation factor binding RNA polymerase II-specific DNA-binding transcription factor binding DNA-binding transcription factor binding DNA binding sequence-specific DNA binding double-stranded DNA binding nucleic acid 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 organic cyclic compound binding transcription regulatory region nucleic acid binding RNA polymerase II cis-regulatory region sequence-specific DNA binding chromatin binding transcription regulator activity DNA-binding transcription factor activity mediator complex binding DNA-binding transcription factor activity, RNA polymerase II-specific DNA-binding transcription activator activity, RNA polymerase II-specific DNA-binding transcription activator activity identical protein binding cytoskeletal protein binding actin binding actin filament binding protein heterodimerization activity protein dimerization activity protein homodimerization activity disordered domain specific binding protein domain specific binding	response to nutrient levels response to stimulus response to stress response to amino acid starvation response to starvation positive regulation of cellular response to amino acid starvation cellular response to stimulus regulation of response to nutrient levels regulation of cellular process positive regulation of biological process regulation of cellular response to stress cellular response to amino acid starvation positive regulation of response to stimulus cellular response to stress response to nutrient levels response to stimulus response to stress response to amino acid starvation response to starvation positive regulation of cellular response to amino acid starvation cellular response to stimulus regulation of response to nutrient levels regulation of cellular process positive regulation of biological process regulation of cellular response to stress cellular response to amino acid starvation positive regulation of response to stimulus cellular response to stress regulation of response to stress positive regulation of cellular process regulation of biological process biological regulation cellular response to starvation cellular response to nutrient levels regulation of response to stimulus cellular process regulation of cellular response to amino acid starvation positive regulation of response to nutrient levels transcription preinitiation complex assembly positive regulation of macromolecule biosynthetic process regulation of primary metabolic process cellular component biogenesis nucleobase-containing compound metabolic process DNA-templated transcription positive regulation of metabolic process regulation of DNA-templated transcription initiation regulation of RNA metabolic process cellular component assembly transcription by RNA polymerase II organic substance biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process transcription initiation at RNA polymerase II promoter regulation of transcription by RNA polymerase II positive regulation of nucleobase-containing compound metabolic process cellular metabolic process primary metabolic process regulation of cellular metabolic process positive regulation of transcription by RNA polymerase II positive regulation of DNA-templated transcription initiation positive regulation of RNA metabolic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process organic cyclic compound biosynthetic process RNA polymerase II preinitiation complex assembly metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process regulation of RNA polymerase II transcription preinitiation complex assembly regulation of cellular component organization positive regulation of cellular component organization cellular biosynthetic process positive regulation of DNA-templated transcription RNA metabolic process positive regulation of cellular metabolic process cellular component organization protein-DNA complex organization RNA biosynthetic process nucleic acid biosynthetic process regulation of protein-containing complex assembly positive regulation of protein-containing complex assembly organic substance metabolic process positive regulation of biosynthetic process protein-containing complex assembly cellular component organization or biogenesis regulation of RNA biosynthetic process regulation of biosynthetic process positive regulation of RNA polymerase II transcription preinitiation complex assembly protein-containing complex organization positive regulation of cellular component biogenesis positive regulation of transcription initiation by RNA polymerase II protein-DNA complex assembly regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression regulation of cellular component biogenesis macromolecule biosynthetic process DNA-templated transcription initiation nucleic acid metabolic process regulation of cellular biosynthetic process positive regulation of RNA biosynthetic process regulation of transcription initiation by RNA polymerase II positive regulation of cellular biosynthetic process protein localization localization cellular localization protein localization to organelle cellular macromolecule localization macromolecule localization protein localization to nuclear periphery protein localization to nucleus amino acid biosynthetic process amino acid metabolic process cellular response to nitrogen compound response to organic substance nitrogen catabolite regulation of transcription regulation of nitrogen utilization intracellular nitrogen homeostasis nitrogen catabolite activation of transcription from RNA polymerase II promoter response to organonitrogen compound response to nitrogen compound cellular response to organonitrogen compound chemical homeostasis response to chemical homeostatic process cellular response to endogenous stimulus nitrogen catabolite activation of transcription intracellular chemical homeostasis cellular response to organic substance nitrogen catabolite regulation of transcription from RNA polymerase II promoter response to endogenous stimulus response to nutrient nitrogen utilization cellular response to chemical stimulus cellular homeostasis cellular response to nutrient signaling signal transduction intracellular signal transduction cell communication negative regulation of biological process negative regulation of cellular metabolic process negative regulation of RNA biosynthetic process negative regulation of nucleobase-containing compound metabolic process negative regulation of DNA-templated transcription negative regulation of transcription by RNA polymerase II negative regulation of metabolic process negative regulation of cellular biosynthetic process negative regulation of macromolecule biosynthetic process negative regulation of RNA metabolic process negative regulation of cellular process negative regulation of macromolecule metabolic process negative regulation of biosynthetic process regulation of ribosomal protein gene transcription by RNA polymerase II negative regulation of ribosomal protein gene transcription by RNA polymerase II regulation of vascular associated smooth muscle cell migration negative regulation of locomotion vascular associated smooth muscle cell migration regulation of cell motility negative regulation of vascular associated smooth muscle cell migration regulation of smooth muscle cell migration smooth muscle cell migration muscle cell migration negative regulation of smooth muscle cell migration regulation of locomotion regulation of cell migration negative regulation of cell motility cell migration cell motility locomotion negative regulation of cell migration multicellular organismal process system process muscle filament sliding actin filament-based process actin-mediated cell contraction actin filament-based movement muscle contraction muscle system process actin-myosin filament sliding developmental process multicellular organism development embryo development ending in birth or egg hatching chordate embryonic development anatomical structure development embryo development in utero embryonic development regulation of developmental process regulation of cell shape cell morphogenesis regulation of cell morphogenesis anatomical structure morphogenesis regulation of biological quality regulation of anatomical structure morphogenesis cell adhesion positive regulation of cell adhesion regulation of cell adhesion cellular response to oxidative stress response to oxygen-containing compound cellular response to chemical stress cellular response to oxygen-containing compound response to reactive oxygen species cellular response to reactive oxygen species response to oxidative stress regulation of cellular component size protein-containing complex disassembly regulation of protein-containing complex disassembly actin filament depolymerization regulation of actin filament depolymerization actin filament capping negative regulation of supramolecular fiber organization negative regulation of actin filament polymerization cellular component disassembly negative regulation of cellular component organization actin filament organization regulation of organelle organization negative regulation of protein depolymerization negative regulation of protein-containing complex assembly regulation of protein polymerization regulation of supramolecular fiber organization supramolecular fiber organization regulation of cytoskeleton organization regulation of actin filament-based process negative regulation of protein-containing complex disassembly negative regulation of protein polymerization regulation of actin filament polymerization actin polymerization or depolymerization protein polymerization regulation of actin filament organization actin cytoskeleton organization actin filament polymerization regulation of protein depolymerization negative regulation of cytoskeleton organization regulation of actin polymerization or depolymerization organelle organization negative regulation of organelle organization regulation of actin filament length regulation of actin cytoskeleton organization negative regulation of actin filament depolymerization protein depolymerization cytoskeleton organization regulation of anatomical structure size wound healing response to wounding plasma membrane bounded cell projection organization ruffle organization cell projection organization heart process circulatory system process cardiac muscle contraction heart contraction blood circulation striated muscle contraction ventricular cardiac muscle tissue morphogenesis heart morphogenesis striated muscle tissue development muscle structure development ventricular cardiac muscle tissue development cardiac chamber development animal organ morphogenesis muscle tissue development muscle organ development system development heart development cardiac chamber morphogenesis cardiac muscle tissue development animal organ development tissue development muscle tissue morphogenesis circulatory system development tissue morphogenesis cardiac ventricle morphogenesis cardiac muscle tissue morphogenesis cardiac ventricle development muscle organ morphogenesis positive regulation of molecular function regulation of molecular function regulation of ATP-dependent activity positive regulation of ATP-dependent activity positive regulation of organelle organization regulation of actin filament bundle assembly positive regulation of actin filament bundle assembly actin filament bundle organization positive regulation of stress fiber assembly stress fiber assembly actomyosin structure organization positive regulation of cytoskeleton organization positive regulation of supramolecular fiber organization regulation of stress fiber assembly contractile actin filament bundle assembly regulation of actomyosin structure organization actin filament bundle assembly cellular developmental process cellular component assembly involved in morphogenesis non-membrane-bounded organelle assembly cell development muscle cell differentiation striated muscle cell development cellular anatomical entity morphogenesis muscle cell development cell differentiation sarcomere organization organelle assembly myofibril assembly anatomical structure formation involved in morphogenesis striated muscle cell differentiation regulation of vascular associated smooth muscle cell proliferation negative regulation of cell population proliferation cell population proliferation regulation of smooth muscle cell proliferation negative regulation of vascular associated smooth muscle cell proliferation smooth muscle cell proliferation negative regulation of smooth muscle cell proliferation regulation of cell population proliferation muscle cell proliferation vascular associated smooth muscle cell proliferation regulation of systemic arterial blood pressure mediated by a chemical signal regulation of heart contraction regulation of system process positive regulation of blood pressure positive regulation of blood circulation regulation of systemic arterial blood pressure by norepinephrine-epinephrine positive regulation of blood pressure by epinephrine-norepinephrine regulation of multicellular organismal process regulation of heart rate regulation of heart rate by chemical signal regulation of blood pressure positive regulation of heart rate positive regulation of heart rate by epinephrine-norepinephrine positive regulation of heart contraction regulation of blood circulation regulation of systemic arterial blood pressure positive regulation of heart rate by epinephrine positive regulation of multicellular organismal process	RNA polymerase II transcription regulator complex membrane-bounded organelle protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex transcription regulator complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle organelle ruffle cell leading edge plasma membrane RNA polymerase II transcription regulator complex membrane-bounded organelle protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex transcription regulator complex intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle organelle ruffle cell leading edge plasma membrane membrane leading edge membrane plasma membrane bounded cell projection cell periphery cell projection ruffle membrane plasma membrane region cell projection membrane cytoskeleton intracellular non-membrane-bounded organelle actin cytoskeleton non-membrane-bounded organelle cytoplasm contractile muscle fiber supramolecular fiber myofibril supramolecular polymer supramolecular complex bleb actin filament bundle actomyosin stress fiber contractile actin filament bundle polymeric cytoskeletal fiber actin filament

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR004827	Basic-leucine zipper domain	Domain
A, B	IPR046347	Basic-leucine zipper domain superfamily	Homologous Superfamily
A, B	IPR000533	Tropomyosin	Family

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.