2Z5I | pdb_00002z5i

Crystal structure of the head-to-tail junction of tropomyosin

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Med6	e2z5iA1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Med6	ECOD (v295)
B	Med6	e2z5iB1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Med6	ECOD (v295)
C	Med6	e2z5iC1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Med6	ECOD (v295)
D	Med6	e2z5iD1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Med6	ECOD (v295)
E	Med6	e2z5iE1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Med6	ECOD (v295)
F	Med6	e2z5iF1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Med6	ECOD (v295)
H	Med6	e2z5iH1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Med6	ECOD (v295)
G	Med6	e2z5iG1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Med6	ECOD (v295)
J	Med6	e2z5iJ1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Med6	ECOD (v295)
I	Med6	e2z5iI1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Med6	ECOD (v295)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	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)
C	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)
D	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)
E	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)
F	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)
H	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)
G	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, C, D, E A, B, C, D, E, F, G, H	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, C, D, E A, B, C, D, E, F, G, H	General control protein GCN4 and Tropomyosin alpha-1 chain	TFIID-class transcription factor complex binding transcription factor binding RNA polymerase binding protein binding binding RNA polymerase II complex binding general transcription initiation factor binding RNA polymerase core enzyme binding enzyme 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 TFIID-class transcription factor complex binding transcription factor binding RNA polymerase binding protein binding binding RNA polymerase II complex binding general transcription initiation factor binding RNA polymerase core enzyme binding enzyme 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 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 protein-containing complex binding 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 protein heterodimerization activity protein dimerization activity cytoskeletal protein binding troponin I binding actin binding actin filament binding protein homodimerization activity	response to nutrient levels response to stimulus response to stress response to amino acid starvation response to starvation cellular response to stimulus cellular response to nutrient levels cellular process positive regulation of cellular response to amino acid starvation 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 response to nutrient levels response to stimulus response to stress response to amino acid starvation response to starvation cellular response to stimulus cellular response to nutrient levels cellular process positive regulation of cellular response to amino acid starvation 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 regulation of response to stimulus 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 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 primary metabolic process positive regulation of transcription by RNA polymerase II positive regulation of DNA-templated transcription initiation positive regulation of RNA metabolic process regulation of gene expression 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 positive regulation of cellular component organization regulation of cellular component organization positive regulation of DNA-templated transcription RNA metabolic process cellular component organization protein-DNA complex organization RNA biosynthetic process nucleic acid biosynthetic process positive regulation of protein-containing complex assembly regulation of protein-containing complex assembly 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 positive regulation of RNA biosynthetic process regulation of transcription initiation by RNA polymerase II localization protein localization to organelle macromolecule localization protein localization to nuclear periphery protein localization to nucleus intracellular protein localization amino acid biosynthetic process amino acid metabolic process signaling signal transduction intracellular signal transduction cell communication negative regulation of biological process negative regulation of RNA biosynthetic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process negative regulation of macromolecule metabolic process 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 regulation of ribosomal protein gene transcription by RNA polymerase II negative regulation of ribosomal protein gene transcription by RNA polymerase II	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 intracellular organelle cellular anatomical structure organelle polymeric cytoskeletal fiber actin filament intracellular membraneless organelle 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 intracellular organelle cellular anatomical structure organelle polymeric cytoskeletal fiber actin filament intracellular membraneless organelle actin cytoskeleton cytoskeleton membraneless organelle supramolecular fiber supramolecular polymer supramolecular complex
I, J	Tropomyosin alpha-1 chain and General control protein GCN4	TFIID-class transcription factor complex binding transcription factor binding RNA polymerase binding protein binding binding RNA polymerase II complex binding general transcription initiation factor binding RNA polymerase core enzyme binding enzyme 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 TFIID-class transcription factor complex binding transcription factor binding RNA polymerase binding protein binding binding RNA polymerase II complex binding general transcription initiation factor binding RNA polymerase core enzyme binding enzyme 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 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 protein-containing complex binding 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 protein heterodimerization activity protein dimerization activity cytoskeletal protein binding troponin I binding actin binding actin filament binding protein homodimerization activity	response to nutrient levels response to stimulus response to stress response to amino acid starvation response to starvation cellular response to stimulus cellular response to nutrient levels cellular process positive regulation of cellular response to amino acid starvation 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 response to nutrient levels response to stimulus response to stress response to amino acid starvation response to starvation cellular response to stimulus cellular response to nutrient levels cellular process positive regulation of cellular response to amino acid starvation 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 regulation of response to stimulus 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 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 primary metabolic process positive regulation of transcription by RNA polymerase II positive regulation of DNA-templated transcription initiation positive regulation of RNA metabolic process regulation of gene expression 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 positive regulation of cellular component organization regulation of cellular component organization positive regulation of DNA-templated transcription RNA metabolic process cellular component organization protein-DNA complex organization RNA biosynthetic process nucleic acid biosynthetic process positive regulation of protein-containing complex assembly regulation of protein-containing complex assembly 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 positive regulation of RNA biosynthetic process regulation of transcription initiation by RNA polymerase II localization protein localization to organelle macromolecule localization protein localization to nuclear periphery protein localization to nucleus intracellular protein localization amino acid biosynthetic process amino acid metabolic process signaling signal transduction intracellular signal transduction cell communication negative regulation of biological process negative regulation of RNA biosynthetic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process negative regulation of macromolecule metabolic process 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 regulation of ribosomal protein gene transcription by RNA polymerase II negative regulation of ribosomal protein gene transcription by RNA polymerase II	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 intracellular organelle cellular anatomical structure organelle polymeric cytoskeletal fiber actin filament intracellular membraneless organelle 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 intracellular organelle cellular anatomical structure organelle polymeric cytoskeletal fiber actin filament intracellular membraneless organelle actin cytoskeleton cytoskeleton membraneless organelle supramolecular fiber supramolecular polymer supramolecular complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F, G, H	IPR004827	Basic-leucine zipper domain	Domain
A, B, C, D, E A, B, C, D, E, F, G, H	IPR050946	AP-1 Transcription Factor bZIP	Family
A, B, C, D, E A, B, C, D, E, F, G, H	IPR046347	Basic-leucine zipper domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G, H	IPR000533	Tropomyosin	Family
I, J	IPR004827	Basic-leucine zipper domain	Domain
I, J	IPR050946	AP-1 Transcription Factor bZIP	Family
I, J	IPR046347	Basic-leucine zipper domain superfamily	Homologous Superfamily
I, J	IPR000533	Tropomyosin	Family

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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.