8DD0

The structure of the native cardiac thin filament junction region

External Resource: Annotation

Domain Annotation: ECOD Classification
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	Actin_1st	e8dd0A2	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: Actin_1st	ECOD (1.6)
A	Actin_2nd	e8dd0A1	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: Actin_2nd	ECOD (1.6)
B	Actin_1st	e8dd0B1	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: Actin_1st	ECOD (1.6)
B	Actin_2nd	e8dd0B2	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: Actin_2nd	ECOD (1.6)
C	Actin_1st	e8dd0C1	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: Actin_1st	ECOD (1.6)
C	Actin_2nd	e8dd0C2	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: Actin_2nd	ECOD (1.6)
D	Actin_1st	e8dd0D1	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: Actin_1st	ECOD (1.6)
D	Actin_2nd	e8dd0D2	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: Actin_2nd	ECOD (1.6)
E	Actin_1st	e8dd0E2	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: Actin_1st	ECOD (1.6)
E	Actin_2nd	e8dd0E1	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: Actin_2nd	ECOD (1.6)
F	Actin_1st	e8dd0F2	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: Actin_1st	ECOD (1.6)
F	Actin_2nd	e8dd0F1	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: Actin_2nd	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
G, H, I, J, L G, H, I, J, L, M, N, O	PF00261	Tropomyosin (Tropomyosin)	Tropomyosin	-	Coiled-coil
K, P	PF00992	Troponin (Troponin)	Troponin	-	Family

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	Actin, alpha cardiac muscle 1	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 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 hydrolase activity catalytic activity	developmental process mesenchyme migration multicellular organismal process mesenchyme morphogenesis animal organ development mesenchyme development tissue development tissue morphogenesis anatomical structure morphogenesis tissue migration anatomical structure development animal organ morphogenesis myotube cell development skeletal muscle fiber development developmental process mesenchyme migration multicellular organismal process mesenchyme morphogenesis animal organ development mesenchyme development tissue development tissue morphogenesis anatomical structure morphogenesis tissue migration anatomical structure development animal organ morphogenesis myotube cell development skeletal muscle fiber development cellular developmental process skeletal muscle tissue development cell development muscle cell differentiation myotube differentiation striated muscle tissue development muscle structure development skeletal muscle organ development striated muscle cell development muscle cell development cell differentiation cellular process muscle tissue development muscle organ development striated muscle cell differentiation 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 positive regulation of 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 cellular component assembly involved in morphogenesis non-membrane-bounded organelle assembly skeletal myofibril assembly cellular component organization cellular component biogenesis cellular anatomical entity morphogenesis cellular component assembly actin filament-based process cellular component organization or biogenesis skeletal muscle thin filament assembly actin cytoskeleton organization actomyosin structure organization organelle assembly actin filament organization organelle organization myofibril assembly anatomical structure formation involved in morphogenesis supramolecular fiber organization cytoskeleton organization	cell projection cell leading edge cellular anatomical entity plasma membrane bounded cell projection lamellipodium intracellular anatomical structure actin filament bundle actin cytoskeleton actomyosin intracellular organelle cytoskeleton organelle intracellular non-membrane-bounded organelle stress fiber cell projection cell leading edge cellular anatomical entity plasma membrane bounded cell projection lamellipodium intracellular anatomical structure actin filament bundle actin cytoskeleton actomyosin intracellular organelle cytoskeleton organelle intracellular non-membrane-bounded organelle stress fiber contractile actin filament bundle non-membrane-bounded organelle polymeric cytoskeletal fiber actin filament supramolecular fiber supramolecular polymer supramolecular complex cell body striated muscle thin filament myofilament sarcomere contractile muscle fiber cytoplasm myofibril actin-based cell projection filopodium
G, H, I, J, L G, H, I, J, L, M, N, O	Tropomyosin alpha-1 chain	protein heterodimerization activity protein binding binding protein dimerization activity cytoskeletal protein binding actin binding protein-containing complex binding actin filament binding identical protein binding protein homodimerization activity	cellular component organization organelle organization actin cytoskeleton organization actin filament organization actin filament-based process cellular process cellular component organization or biogenesis supramolecular fiber organization cytoskeleton organization heart process multicellular organismal process system process circulatory system process cardiac muscle contraction cellular component organization organelle organization actin cytoskeleton organization actin filament organization actin filament-based process cellular process cellular component organization or biogenesis supramolecular fiber organization cytoskeleton organization heart process multicellular organismal process system process circulatory system process cardiac muscle contraction heart contraction muscle contraction muscle system process blood circulation striated muscle contraction	polymeric cytoskeletal fiber intracellular anatomical structure actin filament cellular anatomical entity actin cytoskeleton intracellular organelle cytoskeleton organelle intracellular non-membrane-bounded organelle supramolecular fiber supramolecular polymer supramolecular complex non-membrane-bounded organelle cytoplasm
K, P	Troponin T2, cardiac type	cytoskeletal protein binding protein binding binding tropomyosin binding actin binding troponin C binding troponin I binding	heart process multicellular organismal process system process regulation of biological process regulation of heart contraction regulation of system process biological regulation circulatory system process regulation of blood circulation regulation of multicellular organismal process heart contraction blood circulation response to stimulus response to metal ion heart process multicellular organismal process system process regulation of biological process regulation of heart contraction regulation of system process biological regulation circulatory system process regulation of blood circulation regulation of multicellular organismal process heart contraction blood circulation response to stimulus response to metal ion response to chemical response to calcium ion regulation of muscle contraction muscle contraction regulation of muscle system process muscle system process cardiac muscle contraction striated muscle contraction ventricular cardiac muscle tissue morphogenesis heart morphogenesis striated muscle tissue development muscle structure development multicellular organism development ventricular cardiac muscle tissue development anatomical structure development cardiac chamber development animal organ morphogenesis muscle tissue development muscle organ development system development developmental process heart development cardiac chamber morphogenesis cardiac muscle tissue development animal organ development tissue development muscle tissue morphogenesis circulatory system development anatomical structure morphogenesis tissue morphogenesis cardiac ventricle morphogenesis cardiac muscle tissue morphogenesis cardiac ventricle development muscle organ morphogenesis muscle filament sliding actin filament-based process cellular process actin-mediated cell contraction actin filament-based movement actin-myosin filament sliding cellular developmental process cellular component assembly involved in morphogenesis non-membrane-bounded organelle assembly cell development muscle cell differentiation cellular component organization cellular component biogenesis striated muscle cell development cellular anatomical entity morphogenesis cellular component assembly muscle cell development cell differentiation sarcomere organization cellular component organization or biogenesis actomyosin structure organization actin cytoskeleton organization organelle assembly myofibril assembly organelle organization anatomical structure formation involved in morphogenesis striated muscle cell differentiation supramolecular fiber organization cytoskeleton organization	striated muscle thin filament protein-containing complex intracellular anatomical structure myofilament cellular anatomical entity actin cytoskeleton sarcomere intracellular organelle troponin complex cytoskeleton organelle intracellular non-membrane-bounded organelle contractile muscle fiber cytoplasm striated muscle thin filament protein-containing complex intracellular anatomical structure myofilament cellular anatomical entity actin cytoskeleton sarcomere intracellular organelle troponin complex cytoskeleton organelle intracellular non-membrane-bounded organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex non-membrane-bounded organelle cardiac myofibril cardiac Troponin complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F	IPR020902	Actin/actin-like conserved site	Conserved Site
A, B, C, D, E A, B, C, D, E, F	IPR004001	Actin, conserved site	Conserved Site
A, B, C, D, E A, B, C, D, E, F	IPR043129	ATPase, nucleotide binding domain	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR004000	Actin family	Family
G, H, I, J, L G, H, I, J, L, M, N, O	IPR000533	Tropomyosin	Family
K, P	IPR001978	Troponin	Family
K, P	IPR027707	Troponin T	Family
K, P	IPR038077	Troponin domain superfamily	Homologous Superfamily

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.