Annotations: 9MON

Structure of native murine cardiac thin filament at pCa=5.8 in Ca2+-bound fully activated state (upper strand)

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)
J	SCOP2B Superfamily	Troponin coil-coiled subunits	8094321	3001782	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	EF-hand	8093724	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)
G	Beta-Casp	e9monG1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
F	Beta-Casp	e9monF1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
E	Beta-Casp	e9monE1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
D	Beta-Casp	e9monD1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
C	Beta-Casp	e9monC1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
B	Beta-Casp	e9monB1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
A	Beta-Casp	e9monA1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
L, M, N, O	PF00261	Tropomyosin (Tropomyosin)	Tropomyosin	-	Coiled-coil
J, K	PF00992	Troponin (Troponin)	Troponin	-	Family
I	PF00992	Troponin (Troponin)	Troponin	-	Family
H	PF13833	EF-hand domain pair (EF-hand_8)	EF-hand domain pair		Domain
H	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
L, M, N, O	Tropomyosin alpha-1 chain	cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding protein heterodimerization activity protein dimerization activity identical protein binding protein homodimerization activity structural constituent of cytoskeleton structural molecule activity disordered domain specific binding protein domain specific binding	regulation of vascular associated smooth muscle cell migration negative regulation of locomotion regulation of biological process vascular associated smooth muscle cell migration regulation of cell motility regulation of cellular process negative regulation of vascular associated smooth muscle cell migration regulation of smooth muscle cell migration biological regulation negative regulation of biological process smooth muscle cell migration muscle cell migration negative regulation of smooth muscle cell migration regulation of locomotion regulation of cell migration regulation of vascular associated smooth muscle cell migration negative regulation of locomotion regulation of biological process vascular associated smooth muscle cell migration regulation of cell motility regulation of cellular process negative regulation of vascular associated smooth muscle cell migration regulation of smooth muscle cell migration biological regulation negative regulation of biological process smooth muscle cell migration muscle cell migration negative regulation of smooth muscle cell migration regulation of locomotion regulation of cell migration negative regulation of cellular process negative regulation of cell motility cell migration cellular process 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 positive regulation of biological process positive regulation of cellular process regulation of cellular component size protein-containing complex disassembly regulation of protein-containing complex disassembly actin filament depolymerization regulation of actin filament depolymerization cellular component biogenesis actin filament capping cellular component assembly 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 cellular component organization regulation of actin filament-based process cellular component organization regulation of protein-containing complex assembly negative regulation of protein-containing complex disassembly protein-containing complex assembly negative regulation of protein polymerization cellular component organization or biogenesis regulation of actin filament polymerization actin polymerization or depolymerization protein polymerization regulation of actin filament organization actin cytoskeleton organization actin filament polymerization protein-containing complex organization regulation of protein depolymerization negative regulation of cytoskeleton organization regulation of actin polymerization or depolymerization regulation of cellular component biogenesis 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 stimulus response to stress 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 organelle organization positive regulation of cellular component 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 cellular component biogenesis 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 cell development membraneless organelle assembly 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	ruffle cell leading edge plasma membrane membrane leading edge membrane plasma membrane bounded cell projection cell periphery cell projection cellular anatomical structure ruffle membrane plasma membrane region cell projection membrane intracellular organelle intracellular anatomical structure ruffle cell leading edge plasma membrane membrane leading edge membrane plasma membrane bounded cell projection cell periphery cell projection cellular anatomical structure ruffle membrane plasma membrane region cell projection membrane intracellular organelle intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle actin cytoskeleton cytoplasm cytosol striated muscle thin filament protein-containing complex myofilament muscle thin filament tropomyosin sarcomere 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
J, K	Isoform A2 of Troponin T, cardiac muscle	cytoskeletal protein binding troponin C binding protein binding binding troponin I binding protein-macromolecule adaptor activity molecular adaptor activity tropomyosin binding actin binding protein-containing complex binding structural constituent of cytoskeleton structural molecule activity identical protein 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 developmental process heart development 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 developmental process heart development multicellular organism development anatomical structure development animal organ development circulatory system development system development response to stimulus response to metal ion response to chemical response to calcium ion cardiac atrium morphogenesis heart morphogenesis striated muscle tissue development muscle structure development cardiac chamber development animal organ morphogenesis muscle tissue development muscle organ development cardiac chamber morphogenesis atrial cardiac muscle tissue morphogenesis cardiac muscle tissue development cardiac atrium development tissue development atrial cardiac muscle tissue development muscle tissue morphogenesis anatomical structure morphogenesis tissue morphogenesis cardiac muscle tissue morphogenesis muscle organ morphogenesis negative regulation of ATP-dependent activity regulation of ATP-dependent activity regulation of molecular function negative regulation of molecular function muscle filament sliding actin filament-based process cellular process actin-mediated cell contraction actin filament-based movement muscle contraction muscle system process actin-myosin filament sliding biological process involved in interspecies interaction between organisms response to other organism response to bacterium response to external stimulus response to external biotic stimulus response to biotic stimulus cellular component organization organelle organization actin cytoskeleton organization actin filament organization actin crosslink formation cellular component organization or biogenesis supramolecular fiber organization cytoskeleton organization cardiac muscle contraction striated muscle contraction ventricular cardiac muscle tissue morphogenesis ventricular cardiac muscle tissue development cardiac ventricle morphogenesis cardiac ventricle development positive regulation of molecular function positive regulation of ATP-dependent activity regulation of localization cellular localization regulation of cellular process regulation of actin filament-based process transport localization establishment of localization in cell regulation of biological quality regulation of intracellular transport regulation of transport regulation of muscle filament sliding speed 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 cellular developmental process cellular component assembly involved in morphogenesis cell development membraneless organelle assembly muscle cell differentiation cellular component biogenesis striated muscle cell development cellular anatomical entity morphogenesis cellular component assembly muscle cell development cell differentiation sarcomere organization actomyosin structure organization organelle assembly myofibril assembly anatomical structure formation involved in morphogenesis striated muscle cell differentiation	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
I	Troponin I, cardiac muscle	protein binding binding protein domain specific binding cytoskeletal protein binding actin binding protein-containing complex binding actin filament binding troponin C binding troponin T binding kinase binding enzyme binding protein kinase binding molecular function inhibitor activity channel regulator activity protein binding binding protein domain specific binding cytoskeletal protein binding actin binding protein-containing complex binding actin filament binding troponin C binding troponin T binding kinase binding enzyme binding protein kinase binding molecular function inhibitor activity channel regulator activity transporter inhibitor activity calcium channel inhibitor activity ion channel inhibitor activity ion channel regulator activity molecular function regulator activity calcium channel regulator activity transporter regulator activity channel inhibitor activity calcium-dependent protein binding	developmental process heart development multicellular organism development multicellular organismal process anatomical structure development animal organ development circulatory system development system development system process muscle contraction muscle system process striated muscle contraction regulation of biological process regulation of muscle contraction developmental process heart development multicellular organism development multicellular organismal process anatomical structure development animal organ development circulatory system development system development system process muscle contraction muscle system process striated muscle contraction regulation of biological process regulation of muscle contraction regulation of system process biological regulation regulation of multicellular organismal process regulation of muscle system process multicellular organismal movement musculoskeletal movement nervous system process neuromuscular process skeletal muscle contraction inorganic ion homeostasis intracellular calcium ion homeostasis homeostatic process calcium ion homeostasis cellular homeostasis chemical homeostasis intracellular monoatomic cation homeostasis monoatomic ion homeostasis intracellular chemical homeostasis monoatomic cation homeostasis intracellular monoatomic ion homeostasis smooth muscle contraction regulation of smooth muscle contraction muscle filament sliding actin filament-based process cellular process actin-mediated cell contraction actin filament-based movement actin-myosin filament sliding heart process circulatory system process heart contraction blood circulation cellular developmental process blood vessel morphogenesis tube development vasculogenesis vasculature development anatomical structure morphogenesis tube morphogenesis cell differentiation blood vessel development regulation of systemic arterial blood pressure by ischemic conditions regulation of blood pressure regulation of systemic arterial blood pressure regulation of biological quality nervous system process involved in regulation of systemic arterial blood pressure cardiac 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 cardiac chamber morphogenesis cardiac muscle tissue development tissue development muscle tissue morphogenesis tissue morphogenesis cardiac ventricle morphogenesis cardiac muscle tissue morphogenesis cardiac ventricle development muscle organ morphogenesis cellular response to stimulus regulation of cellular process response to stimulus signaling regulation of heart contraction intracellular signal transduction cell communication intracellular signaling cassette signal transduction regulation of cardiac muscle contraction by calcium ion signaling regulation of cardiac muscle contraction regulation of blood circulation regulation of striated muscle contraction calcium-mediated signaling	intracellular anatomical structure intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber supramolecular polymer supramolecular complex striated muscle thin filament protein-containing complex myofilament intracellular anatomical structure intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber supramolecular polymer supramolecular complex striated muscle thin filament protein-containing complex myofilament actin cytoskeleton sarcomere troponin complex cytoskeleton myofibril cardiac myofibril cardiac Troponin complex
H	Troponin C, slow skeletal and cardiac muscles	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	multicellular organismal process system process nervous system process neuromuscular process skeletal muscle contraction muscle contraction respiratory gaseous exchange by respiratory system muscle system process striated muscle contraction multicellular organismal movement musculoskeletal movement diaphragm contraction respiratory system process involuntary skeletal muscle contraction multicellular organismal process system process nervous system process neuromuscular process skeletal muscle contraction muscle contraction respiratory gaseous exchange by respiratory system muscle system process striated muscle contraction multicellular organismal movement musculoskeletal movement diaphragm contraction respiratory system process involuntary skeletal muscle contraction regulation of biological process regulation of muscle contraction regulation of system process biological regulation regulation of multicellular organismal process regulation of muscle system process regulation of muscle adaptation striated muscle adaptation response to stimulus transition between fast and slow fiber regulation of skeletal muscle adaptation muscle adaptation regulation of response to stimulus skeletal muscle adaptation heart process circulatory system process cardiac muscle contraction heart contraction blood circulation cardiac muscle cell contraction actin filament-based movement actin filament-based process cellular process actin-mediated cell contraction response to metal ion response to chemical 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-myosin filament sliding regulation of localization cellular localization regulation of cellular process regulation of actin filament-based process transport localization establishment of localization in cell regulation of biological quality regulation of intracellular transport regulation of transport regulation of muscle filament sliding speed intracellular transport establishment of localization regulation of cellular localization regulation of actin filament-based movement regulation of muscle filament sliding	intracellular anatomical structure intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber supramolecular polymer supramolecular complex sarcomere myofibril striated muscle thin filament intracellular anatomical structure intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber supramolecular polymer supramolecular complex sarcomere myofibril striated muscle thin filament protein-containing complex myofilament actin cytoskeleton troponin complex cytoskeleton cardiac Troponin complex
A, B, C, D, E A, B, C, D, E, F, G	Actin, alpha cardiac muscle 1	hydrolase activity catalytic activity 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 hydrolase activity catalytic activity 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 cytoskeletal protein binding protein binding myosin binding polypeptide conformation or assembly isomerase activity isomerase activity cytoskeletal motor activity microfilament motor activity macromolecular conformation isomerase activity ATP-dependent activity	response to stimulus response to chemical response to xenobiotic stimulus 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 response to stimulus response to chemical response to xenobiotic stimulus 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 heart development cardiac muscle tissue development heart morphogenesis muscle tissue morphogenesis striated muscle tissue development circulatory system development muscle structure development multicellular organism development cardiac muscle tissue morphogenesis muscle organ development muscle tissue development muscle organ morphogenesis system development regulation of biological process regulation of cellular process negative regulation of programmed cell death regulation of apoptotic process biological regulation negative regulation of biological process regulation of programmed cell death cell death negative regulation of apoptotic process negative regulation of cellular process cellular process apoptotic process programmed cell death regulation of biosynthetic 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 cellular developmental process cellular component assembly involved in morphogenesis skeletal myofibril assembly 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 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 striated muscle cell differentiation supramolecular fiber organization cytoskeleton organization cytoplasmic actin-based contraction involved in cell motility cell motility actin-mediated cell contraction actin filament-based movement response to alcohol response to oxygen-containing compound response to ethanol actin-myosin filament sliding heart process system process circulatory system process heart contraction blood circulation cardiac muscle contraction muscle contraction muscle system process striated muscle contraction cardiac muscle cell development cardiac cell development cardiac muscle cell differentiation cardiocyte differentiation cardiac myofibril assembly	cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium intracellular organelle intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle actin cytoskeleton cytoplasm synapse cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium intracellular organelle intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle actin cytoskeleton cytoplasm synapse cell junction glutamatergic synapse sarcomere contractile muscle fiber supramolecular fiber myofibril supramolecular polymer supramolecular complex polymeric cytoskeletal fiber actin filament cell body I band actin-based cell projection filopodium

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
L, M, N, O	IPR000533	Tropomyosin	Family
J, K	IPR001978	Troponin	Family
J, K	IPR038077	Troponin domain superfamily	Homologous Superfamily
J, K	IPR027707	Troponin T	Family
I	IPR001978	Troponin	Family
I	IPR050875	Troponin I	Family
I	IPR038077	Troponin domain superfamily	Homologous Superfamily
I	IPR021666	Troponin I residues 1-32	Family
H	IPR050230	Calmodulin/Myosin light chain/Troponin C-like	Family
H	IPR018247	EF-Hand 1, calcium-binding site	Binding Site
H	IPR002048	EF-hand domain	Domain
H	IPR011992	EF-hand domain pair	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G	IPR020902	Actin/actin-like conserved site	Conserved Site
A, B, C, D, E A, B, C, D, E, F, G	IPR043129	ATPase, nucleotide binding domain	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G	IPR004001	Actin, conserved site	Conserved Site
A, B, C, D, E A, B, C, D, E, F, G	IPR004000	Actin family	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.