Annotations: 7KO7

Structure of the native cardiac thin filament at pCa=5.8 having upper Tn in Ca2+ free state and lower Tn in Ca2+ bound state

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
V	SCOP2B Superfamily	EF-hand	8104309	3001983	SCOP2B (2022-06-29)
CA [auth c]	SCOP2B Superfamily	EF-hand	8104309	3001983	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)
V	Omp85	e7ko7V1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)
CA [auth c]	Omp85	e7ko7c1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)
U	AAA_lid_RFC1	e7ko7U1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: AAA_lid_RFC1	ECOD (v295.2)
BA [auth b]	AAA_lid_RFC1	e7ko7b1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: AAA_lid_RFC1	ECOD (v295.2)
Z	Omp85	e7ko7Z1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)
Y	Omp85	e7ko7Y1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)
X		e7ko7X1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F:	ECOD (v295.2)
W		e7ko7W1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F:	ECOD (v295.2)
S	Omp85	e7ko7S1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)
R	Omp85	e7ko7R1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)
Q		e7ko7Q1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F:	ECOD (v295.2)
P		e7ko7P1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F:	ECOD (v295.2)
O	Omp85	e7ko7O1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)
N	Omp85	e7ko7N1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)
M	Omp85	e7ko7M1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)
L	Omp85	e7ko7L1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)
K	Omp85	e7ko7K1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)
J	Omp85	e7ko7J1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)
I	Omp85	e7ko7I1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)
H	Omp85	e7ko7H1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)
G	Omp85	e7ko7G1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)
F	Omp85	e7ko7F1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)
E	Omp85	e7ko7E1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)
D	Omp85	e7ko7D1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)
C	Omp85	e7ko7C1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)
B	Omp85	e7ko7B1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)
A	Omp85	e7ko7A1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: Omp85	ECOD (v295.2)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
CA [auth c], V	PF13833	EF-hand domain pair (EF-hand_8)	EF-hand domain pair		Domain
CA [auth c], V	PF13499	EF-hand domain pair (EF-hand_7)	EF-hand domain pair		Domain
AA [auth a], T	PF00992	Troponin (Troponin)	Troponin	-	Family
P, Q, R, S, W P, Q, R, S, W, X, Y, Z	PF00261	Tropomyosin (Tropomyosin)	Tropomyosin	-	Coiled-coil
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N, O	PF13833	EF-hand domain pair (EF-hand_8)	EF-hand domain pair		Domain
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N, O	PF00022	Actin (Actin)	Actin	-	Family
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N, O	PF00992	Troponin (Troponin)	Troponin	-	Family
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N, O	PF13499	EF-hand domain pair (EF-hand_7)	EF-hand domain pair		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
CA [auth c], V	Troponin C	cytoskeletal protein binding protein binding binding troponin T binding cation binding ion binding calcium ion binding metal ion binding small molecule binding actin binding protein-containing complex binding actin filament binding identical protein binding protein homodimerization activity cytoskeletal protein binding protein binding binding troponin T binding cation binding ion binding calcium ion binding metal ion binding small molecule binding actin binding protein-containing complex binding actin filament binding identical protein binding protein homodimerization activity protein dimerization activity calcium-dependent protein binding troponin I binding	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 cardiac muscle cell contraction actin filament-based movement actin filament-based process cellular process 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 cardiac muscle cell contraction actin filament-based movement actin filament-based process cellular process actin-mediated cell contraction multicellular organismal movement musculoskeletal movement nervous system process neuromuscular process skeletal 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 animal gross anatomical part developmental process muscle organ morphogenesis regulation of localization cellular localization regulation of cellular process regulation of actin filament-based process transport muscle filament sliding regulation of system process localization establishment of localization in cell regulation of multicellular organismal process regulation of biological quality regulation of intracellular transport actin-myosin filament sliding regulation of biological process regulation of transport regulation of muscle filament sliding speed biological regulation intracellular transport regulation of muscle system process establishment of localization regulation of muscle contraction regulation of cellular localization regulation of actin filament-based movement regulation of muscle filament sliding	striated muscle thin filament protein-containing complex intracellular anatomical structure myofilament intracellular membraneless organelle actin cytoskeleton sarcomere intracellular organelle cellular anatomical structure troponin complex cytoskeleton organelle membraneless organelle contractile muscle fiber striated muscle thin filament protein-containing complex intracellular anatomical structure myofilament intracellular membraneless organelle actin cytoskeleton sarcomere intracellular organelle cellular anatomical structure troponin complex cytoskeleton organelle membraneless organelle contractile muscle fiber cardiac Troponin complex cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex
BA [auth b], U	Troponin I, cardiac muscle	-	-	striated muscle thin filament protein-containing complex intracellular anatomical structure myofilament intracellular membraneless organelle actin cytoskeleton sarcomere intracellular organelle cellular anatomical structure troponin complex cytoskeleton organelle membraneless organelle contractile muscle fiber striated muscle thin filament protein-containing complex intracellular anatomical structure myofilament intracellular membraneless organelle actin cytoskeleton sarcomere intracellular organelle cellular anatomical structure troponin complex cytoskeleton organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex
AA [auth a], T	Troponin T, cardiac muscle	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 animal gross anatomical part developmental process 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 cell development membraneless organelle assembly 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 intracellular membraneless organelle actin cytoskeleton sarcomere intracellular organelle cellular anatomical structure troponin complex cytoskeleton organelle membraneless organelle contractile muscle fiber striated muscle thin filament protein-containing complex intracellular anatomical structure myofilament intracellular membraneless organelle actin cytoskeleton sarcomere intracellular organelle cellular anatomical structure troponin complex cytoskeleton organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex cardiac myofibril cardiac Troponin complex
P, Q, R, S, W P, Q, R, S, W, X, Y, Z	Tropomyosin alpha-1 chain	-	-	-
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N, O	Actin, alpha skeletal muscle	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide 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 animal gross anatomical part developmental process myotube cell 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 animal gross anatomical part developmental process 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 biosynthetic process regulation of biological process regulation of cellular process biological regulation 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 cellular component assembly involved in morphogenesis skeletal myofibril assembly membraneless organelle 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 cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium intracellular anatomical structure actin filament bundle intracellular membraneless organelle actin cytoskeleton actomyosin intracellular organelle cytoskeleton organelle membraneless organelle cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium intracellular anatomical structure actin filament bundle intracellular membraneless organelle actin cytoskeleton actomyosin intracellular organelle cytoskeleton organelle membraneless organelle stress fiber contractile actin filament bundle cytoplasm cytosol polymeric cytoskeletal fiber actin filament supramolecular fiber supramolecular polymer supramolecular complex cell body striated muscle thin filament myofilament sarcomere contractile muscle fiber myofibril actin-based cell projection filopodium

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
CA [auth c], V	IPR050230	Calmodulin/Myosin light chain/Troponin C-like	Family
CA [auth c], V	IPR018247	EF-Hand 1, calcium-binding site	Binding Site
CA [auth c], V	IPR002048	EF-hand domain	Domain
CA [auth c], V	IPR011992	EF-hand domain pair	Homologous Superfamily
BA [auth b], U	IPR001978	Troponin	Family
BA [auth b], U	IPR050875	Troponin I	Family
BA [auth b], U	IPR021666	Troponin I residues 1-32	Family
BA [auth b], U	IPR038077	Troponin domain superfamily	Homologous Superfamily
AA [auth a], T	IPR001978	Troponin	Family
AA [auth a], T	IPR027707	Troponin T	Family
AA [auth a], T	IPR038077	Troponin domain superfamily	Homologous Superfamily
P, Q, R, S, W P, Q, R, S, W, X, Y, Z	IPR000533	Tropomyosin	Family
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N, O	IPR020902	Actin/actin-like conserved site	Conserved Site
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N, O	IPR004001	Actin, conserved site	Conserved Site
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N, O	IPR043129	ATPase, nucleotide binding domain	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N, O	IPR004000	Actin family	Family