2MKP | pdb_00002mkp

N domain of cardiac troponin C bound to the switch fragment of fast skeletal troponin I at pH 6

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth C]	EF-hand_7_5	e2mkpC1	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: EF-hand_7_5	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth C]	PF13833	EF-hand domain pair (EF-hand_8)	EF-hand domain pair		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B [auth I]	Troponin I, fast skeletal muscle	cytoskeletal protein binding protein binding binding troponin T binding actin binding	multicellular organismal movement musculoskeletal movement multicellular organismal process system process nervous system process neuromuscular process skeletal muscle contraction muscle contraction muscle system process striated muscle contraction heart process circulatory system process cardiac muscle contraction heart contraction multicellular organismal movement musculoskeletal movement multicellular organismal process system process nervous system process neuromuscular process skeletal muscle contraction muscle contraction muscle system process striated muscle contraction heart process circulatory system process cardiac muscle contraction heart contraction blood circulation regulation of cellular process positive regulation of DNA-templated transcription positive regulation of biological process RNA metabolic process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process positive regulation of biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process positive regulation of cellular process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of biological process biological regulation primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process positive regulation of RNA metabolic process regulation of gene expression biosynthetic process positive regulation of RNA biosynthetic process cellular process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol striated muscle thin filament protein-containing complex myofilament intracellular membraneless organelle actin cytoskeleton sarcomere intracellular organelle troponin complex cytoskeleton organelle cellular anatomical structure intracellular anatomical structure cytoplasm cytosol striated muscle thin filament protein-containing complex myofilament intracellular membraneless organelle actin cytoskeleton sarcomere intracellular organelle troponin complex cytoskeleton organelle membraneless organelle contractile muscle fiber supramolecular fiber myofibril supramolecular polymer supramolecular complex membrane-bounded organelle nucleus intracellular membrane-bounded organelle
A [auth C]	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 response to metal ion response to chemical regulation of ATP-dependent activity regulation of molecular function 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 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 sarcomere intracellular organelle cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex striated muscle thin filament intracellular anatomical structure intracellular membraneless organelle sarcomere intracellular organelle cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex striated muscle thin filament protein-containing complex myofilament actin cytoskeleton troponin complex cytoskeleton cytosol cardiac Troponin complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B [auth I]	IPR001978	Troponin	Family
B [auth I]	IPR050875	Troponin I	Family
B [auth I]	IPR038077	Troponin domain superfamily	Homologous Superfamily
A [auth C]	IPR050230	Calmodulin/Myosin light chain/Troponin C-like	Family
A [auth C]	IPR018247	EF-Hand 1, calcium-binding site	Binding Site
A [auth C]	IPR002048	EF-hand domain	Domain
A [auth C]	IPR011992	EF-hand domain pair	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B [auth I]	Pharos: P48788	myopathy digitotalar dysmorphism distal arthrogryposis type 2B1 Sheldon-hall syndrome distal arthrogryposis ulcerative colitis arthrogryposis breast carcinoma diabetes mellitus Distal arthrogryposis type 2B inflammatory bowel disease muscular disease pterygium atopic eczema breast fibroadenoma myopathy digitotalar dysmorphism distal arthrogryposis type 2B1 Sheldon-hall syndrome distal arthrogryposis ulcerative colitis arthrogryposis breast carcinoma diabetes mellitus Distal arthrogryposis type 2B inflammatory bowel disease muscular disease pterygium atopic eczema breast fibroadenoma interstitial cystitis breast cancer hypertensive disorder muscle tissue disease psoriasis
A [auth C]	Pharos: P63316	dilated cardiomyopathy 1Z hypertrophic cardiomyopathy 13 dilated cardiomyopathy cardiomyopathy pituitary cancer congestive heart failure endometriosis Hodgkins lymphoma interstitial cystitis lung carcinoma mood disorder psoriasis Charcot-Marie-Tooth disease familial dilated cardiomyopathy hypertrophic cardiomyopathy dilated cardiomyopathy 1Z hypertrophic cardiomyopathy 13 dilated cardiomyopathy cardiomyopathy pituitary cancer congestive heart failure endometriosis Hodgkins lymphoma interstitial cystitis lung carcinoma mood disorder psoriasis Charcot-Marie-Tooth disease familial dilated cardiomyopathy hypertrophic cardiomyopathy lung adenocarcinoma malignant colon neoplasm non-small cell lung carcinoma Conduction disorder of the heart familial isolated dilated cardiomyopathy lung cancer malignant mesothelioma

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.