6ZBI | pdb_00006zbi

Ternary complex of Calmodulin bound to 2 molecules of NHE1

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d6zbia_	All alpha proteins	EF Hand-like	EF-hand	Calmodulin-like	Calmodulin	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	EF-hand	8033438	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)
A	EF-hand_7_8	e6zbiA1	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: EF-hand_7_8	ECOD (1.6)
A	EF-hand_7_5	e6zbiA2	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: EF-hand_7_5	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.238.10	Mainly Alpha	Orthogonal Bundle	Recoverin	domain 1	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B, C	PF16644	Regulatory region of Na+/H+ exchanger NHE binds to calmodulin (NEXCaM_BD)	Regulatory region of Na+/H+ exchanger NHE binds to calmodulin	NEXCaM_BD is a coiled-coil domain found as part of the regulatory, C-terminal region of the 12-14 TM sodium/proton exchangers (NHEs)2 of the solute carrier 9 (SLC9) family in all animal kingdoms. The C- lobe of CaM binds the first alpha-helix of the ...	NEXCaM_BD is a coiled-coil domain found as part of the regulatory, C-terminal region of the 12-14 TM sodium/proton exchangers (NHEs)2 of the solute carrier 9 (SLC9) family in all animal kingdoms. The C- lobe of CaM binds the first alpha-helix of the NHE, or NEXCaM_BD region, and the N-lobe of CaM binds the second helix of NEXCaM_BD[1].	Domain
A	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
B, C	Sodium/hydrogen exchanger 1	binding phospholipid binding lipid binding protein-macromolecule adaptor activity molecular adaptor activity monoatomic cation transmembrane transporter activity metal cation:monoatomic cation antiporter activity proton transmembrane transporter activity sodium:proton antiporter activity sodium ion transmembrane transporter activity secondary active transmembrane transporter activity antiporter activity metal cation:proton antiporter activity active transmembrane transporter activity binding phospholipid binding lipid binding protein-macromolecule adaptor activity molecular adaptor activity monoatomic cation transmembrane transporter activity metal cation:monoatomic cation antiporter activity proton transmembrane transporter activity sodium:proton antiporter activity sodium ion transmembrane transporter activity secondary active transmembrane transporter activity antiporter activity metal cation:proton antiporter activity active transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity protein binding calmodulin binding identical protein binding cation binding ion binding calcium ion binding metal ion binding small molecule binding protein phosphatase binding phosphatase binding protein phosphatase 2B binding enzyme binding phosphatidylinositol-4,5-bisphosphate binding anion binding phosphatidylinositol bisphosphate binding phosphatidylinositol phosphate binding phosphatidylinositol binding calcium-dependent protein binding potassium ion transmembrane transporter activity potassium:proton antiporter activity solute:potassium antiporter activity	cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly cellular process cellular component organization or biogenesis monoatomic cation transmembrane transport transmembrane transport localization transport proton transmembrane transport monoatomic ion transmembrane transport cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly cellular process cellular component organization or biogenesis monoatomic cation transmembrane transport transmembrane transport localization transport proton transmembrane transport monoatomic ion transmembrane transport monoatomic ion transport monoatomic cation transport establishment of localization regulation of cellular process regulation of cellular component organization cell-substrate junction assembly cell adhesion cell junction assembly regulation of cell-substrate junction organization focal adhesion assembly regulation of biological process regulation of cell-substrate adhesion regulation of cell adhesion biological regulation cell-substrate adhesion regulation of cellular component biogenesis regulation of cell junction assembly cell junction organization cell-matrix adhesion regulation of cell-matrix adhesion cell-substrate junction organization regulation of focal adhesion assembly regulation of cell-substrate junction assembly positive regulation of mitochondrial membrane permeability regulation of membrane permeability positive regulation of membrane permeability regulation of biological quality regulation of mitochondrial membrane permeability potassium ion transmembrane transport metal ion transport potassium ion transport heart process multicellular organismal process system process regulation of heart contraction regulation of system process circulatory system process regulation of blood circulation positive regulation of the force of heart contraction regulation of multicellular organismal process heart contraction regulation of the force of heart contraction blood circulation response to decreased oxygen levels cellular response to stimulus response to stimulus cellular response to oxygen levels cellular response to hypoxia cellular response to decreased oxygen levels cellular response to chemical stimulus cellular response to stress response to hypoxia response to stress response to chemical response to oxygen levels response to abiotic stimulus positive regulation of programmed cell death regulation of apoptotic process positive regulation of biological process regulation of programmed cell death cell death positive regulation of apoptotic process apoptotic process programmed cell death positive regulation of cellular process sodium ion export across plasma membrane sodium ion transmembrane transport export from cell export across plasma membrane sodium ion transport developmental process heart development cellular developmental process cardiac muscle tissue development cardiac muscle cell differentiation animal organ development muscle cell differentiation tissue development cardiocyte differentiation striated muscle tissue development circulatory system development muscle structure development multicellular organism development cell differentiation anatomical structure development striated muscle cell differentiation muscle tissue development system development cell migration cell motility cellular response to antibiotic response to antibiotic muscle hypertrophy regulation of muscle adaptation positive regulation of cardiac muscle hypertrophy striated muscle hypertrophy regulation of muscle system process muscle system process regulation of cardiac muscle hypertrophy regulation of muscle hypertrophy muscle adaptation regulation of response to stimulus positive regulation of muscle hypertrophy cardiac muscle hypertrophy positive regulation of multicellular organismal process homeostatic process regulation of intracellular pH cellular homeostasis chemical homeostasis intracellular monoatomic cation homeostasis regulation of pH monoatomic ion homeostasis intracellular chemical homeostasis monoatomic cation homeostasis regulation of cellular pH intracellular monoatomic ion homeostasis response to electrical stimulus cellular response to electrical stimulus cellular response to abiotic stimulus cellular response to environmental stimulus response to pH response to acidic pH positive regulation of DNA-templated transcription 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 transcription by RNA polymerase II positive regulation of biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of transcription by RNA polymerase II primary metabolic process regulation of macromolecule metabolic process positive regulation of transcription by RNA polymerase II 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 metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process carbohydrate derivative catabolic process catabolic process hyaluronan catabolic process glycosaminoglycan metabolic process carbohydrate derivative metabolic process aminoglycan catabolic process macromolecule catabolic process glycosaminoglycan catabolic process hyaluronan metabolic process aminoglycan metabolic process signaling cardiac muscle contraction intracellular signal transduction cell communication striated muscle contraction intracellular signaling cassette signal transduction regulation of cardiac muscle contraction by calcium ion signaling regulation of cardiac muscle contraction muscle contraction regulation of striated muscle contraction calcium-mediated signaling regulation of muscle contraction sodium ion homeostasis inorganic ion homeostasis intracellular sodium ion homeostasis regulation of growth growth positive regulation of cell growth regulation of cell growth cell growth positive regulation of growth regulation of cytoskeleton organization regulation of actin filament-based process regulation of actin filament bundle assembly actin filament bundle organization actin filament-based process stress fiber assembly regulation of actin filament organization actin cytoskeleton organization actomyosin structure organization actin filament organization regulation of organelle organization regulation of stress fiber assembly organelle organization contractile actin filament bundle assembly regulation of actomyosin structure organization regulation of actin cytoskeleton organization actin filament bundle assembly regulation of supramolecular fiber organization supramolecular fiber organization cytoskeleton organization negative regulation of programmed cell death negative regulation of biological process negative regulation of apoptotic process negative regulation of cellular process cellular response to pH cellular response to acidic pH calcineurin-NFAT signaling cascade positive regulation of cell communication positive regulation of signal transduction regulation of signal transduction positive regulation of response to stimulus regulation of intracellular signal transduction regulation of calcineurin-mediated signaling positive regulation of calcineurin-NFAT signaling cascade regulation of calcium-mediated signaling positive regulation of calcium-mediated signaling regulation of calcineurin-NFAT signaling cascade regulation of signaling positive regulation of calcineurin-mediated signaling positive regulation of intracellular signal transduction regulation of cell communication calcineurin-mediated signaling positive regulation of signaling regulation of the force of heart contraction by cardiac conduction cardiac conduction response to epinephrine cellular response to epinephrine stimulus regulation of action potential positive regulation of action potential action potential regulation of membrane potential import into cell import across plasma membrane sodium ion import across plasma membrane inorganic cation import across plasma membrane inorganic ion import across plasma membrane regulation of cardiac muscle cell membrane potential response to mechanical stimulus response to external stimulus cellular response to mechanical stimulus cellular response to external stimulus maintenance of cell polarity establishment or maintenance of cell polarity cardiac muscle cell contraction actin filament-based movement actin-mediated cell contraction cellular response to cold response to cold response to temperature stimulus cellular response to nitrogen compound response to endogenous stimulus response to peptide hormone response to oxygen-containing compound cellular response to peptide hormone stimulus response to nitrogen compound cellular response to oxygen-containing compound cellular response to endogenous stimulus response to hormone response to insulin cellular response to insulin stimulus cellular response to hormone stimulus stem cell differentiation response to muscle stretch	cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium cell periphery sarcolemma plasma membrane membrane T-tubule extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium cell periphery sarcolemma plasma membrane membrane T-tubule extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle basal part of cell basal plasma membrane plasma membrane region basolateral plasma membrane intracellular anatomical structure cytoplasm perinuclear region of cytoplasm cell-cell junction intercalated disc anchoring junction cell junction cell-cell contact zone intracellular organelle mitochondrion intracellular membrane-bounded organelle focal adhesion cell-substrate junction apical part of cell apical plasma membrane cell surface ATPase dependent transmembrane transport complex cation-transporting ATPase complex protein-containing complex transmembrane transporter complex membrane protein complex transporter complex membrane microdomain membrane raft nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen
A	Calmodulin-1	cytoskeletal protein binding titin binding protein binding binding enzyme regulator activity protein phosphatase activator activity enzyme activator activity phosphatase activator activity molecular function activator activity phosphatase regulator activity molecular function regulator activity protein phosphatase regulator activity channel regulator activity ion channel regulator activity cytoskeletal protein binding titin binding protein binding binding enzyme regulator activity protein phosphatase activator activity enzyme activator activity phosphatase activator activity molecular function activator activity phosphatase regulator activity molecular function regulator activity protein phosphatase regulator activity channel regulator activity ion channel regulator activity calcium channel regulator activity transporter regulator activity molecular function inhibitor activity transporter inhibitor activity calcium channel inhibitor activity ion channel inhibitor activity channel inhibitor activity cyclase regulator activity cyclase activator activity adenylate cyclase regulator activity adenylate cyclase activator activity protein serine/threonine kinase activator activity kinase activator activity protein kinase activator activity protein kinase regulator activity kinase regulator activity cation binding ion binding calcium ion binding metal ion binding small molecule binding transmembrane transporter binding kinase binding enzyme binding protein kinase binding calcium-dependent protein binding	organelle localization by membrane tethering localization organelle localization cellular process membrane docking 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 organelle localization by membrane tethering localization organelle localization cellular process membrane docking 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 regulation of biological quality heart contraction blood circulation regulation of heart rate regulation of localization regulation of calcium ion transport negative regulation of ion transmembrane transporter activity regulation of cellular process negative regulation of calcium ion transmembrane transporter activity transport negative regulation of monoatomic ion transport monoatomic ion transmembrane transport negative regulation of biological process negative regulation of ryanodine-sensitive calcium-release channel activity regulation of transmembrane transporter activity negative regulation of transport regulation of monoatomic ion transmembrane transport negative regulation of transmembrane transport calcium ion transport metal ion transport regulation of calcium ion transmembrane transport monoatomic cation transmembrane transport negative regulation of monoatomic ion transmembrane transport negative regulation of release of sequestered calcium ion into cytosol negative regulation of cellular process monoatomic ion transport negative regulation of cation transmembrane transport monoatomic cation transport regulation of metal ion transport calcium ion transmembrane import into cytosol regulation of transport regulation of release of sequestered calcium ion into cytosol regulation of monoatomic ion transport negative regulation of transporter activity negative regulation of molecular function establishment of localization negative regulation of calcium ion transport transmembrane transport regulation of molecular function release of sequestered calcium ion into cytosol regulation of transmembrane transport regulation of ryanodine-sensitive calcium-release channel activity regulation of monoatomic cation transmembrane transport negative regulation of calcium ion transmembrane transport calcium ion transmembrane transport response to stimulus response to metal ion response to chemical response to calcium ion sarcoplasmic reticulum calcium ion transport release of sequestered calcium ion into cytosol by sarcoplasmic reticulum release of sequestered calcium ion into cytosol by endoplasmic reticulum regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum negative regulation of voltage-gated calcium channel activity regulation of voltage-gated calcium channel activity negative regulation of high voltage-gated calcium channel activity cellular component disassembly catabolic process protein-containing complex organization macroautophagy autophagy protein-containing complex disassembly cellular component organization autophagosome maturation autophagosome membrane docking metabolic process cellular component organization or biogenesis process utilizing autophagic mechanism cellular response to interferon-beta response to peptide response to interferon-beta response to cytokine cellular response to cytokine stimulus regulation of cytokinesis regulation of cell cycle process cytokinesis regulation of cell division cell division cell cycle regulation of cell cycle cell cycle process cellular response to stimulus cardiac muscle contraction intracellular signal transduction cell communication intracellular signaling cassette signal transduction regulation of cardiac muscle contraction muscle contraction regulation of striated muscle contraction calcium-mediated signaling regulation of muscle contraction signaling regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion striated muscle contraction regulation of cardiac muscle contraction by calcium ion signaling muscle system process regulation of muscle system process mitochondrion-endoplasmic reticulum membrane tethering import into cell cellular localization presynaptic endocytosis vesicle-mediated transport vesicle-mediated transport in synapse establishment of localization in cell endocytosis cell cycle G2/M phase transition mitotic cell cycle process G2/M transition of mitotic cell cycle cell cycle phase transition mitotic cell cycle mitotic cell cycle phase transition cell communication by electrical coupling involved in cardiac conduction cell communication by electrical coupling regulation of cell communication by electrical coupling involved in cardiac conduction cardiac conduction regulation of cell communication cell communication involved in cardiac conduction regulation of cell communication by electrical coupling export across plasma membrane negative regulation of calcium ion export across plasma membrane regulation of calcium ion export across plasma membrane calcium ion export across plasma membrane export from cell biological process involved in interspecies interaction between organisms immune response response to other organism defense response response to type II interferon defense response to symbiont response to external stimulus cellular response to type II interferon response to biotic stimulus immune system process defense response to other organism response to stress innate immune response response to external biotic stimulus calcineurin-mediated signaling developmental process head development animal organ development brain development nervous system development substantia nigra development multicellular organism development central nervous system development midbrain development anatomical structure development neural nucleus development system development positive regulation of cell communication cell surface receptor signaling pathway via STAT positive regulation of signal transduction positive regulation of biological process positive regulation of receptor signaling pathway via STAT regulation of signal transduction positive regulation of receptor signaling pathway via JAK-STAT positive regulation of response to stimulus regulation of receptor signaling pathway via JAK-STAT positive regulation of cellular process regulation of signaling cell surface receptor signaling pathway regulation of response to stimulus regulation of receptor signaling pathway via STAT cell surface receptor signaling pathway via JAK-STAT positive regulation of signaling regulation of intracellular signal transduction regulation of calcium-mediated signaling regulation of action potential regulation of cardiac muscle cell action potential action potential cardiac muscle cell action potential regulation of membrane potential G protein-coupled receptor signaling pathway modulation of chemical synaptic transmission long-term synaptic potentiation synaptic signaling regulation of synaptic plasticity trans-synaptic signaling cell-cell signaling positive regulation of synaptic transmission chemical synaptic transmission regulation of trans-synaptic signaling anterograde trans-synaptic signaling detection of stimulus detection of chemical stimulus detection of calcium ion	intracellular organelle cellular anatomical structure intracellular anatomical structure cytoskeleton spindle organelle membraneless organelle intracellular membraneless organelle spindle pole microtubule cytoskeleton cytoplasm cytosol membrane-bounded organelle cell projection intracellular organelle cellular anatomical structure intracellular anatomical structure cytoskeleton spindle organelle membraneless organelle intracellular membraneless organelle spindle pole microtubule cytoskeleton cytoplasm cytosol membrane-bounded organelle cell projection sperm midpiece cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection protein-containing complex transmembrane transporter complex membrane membrane protein complex cation channel complex transporter complex calcium channel complex monoatomic ion channel complex axon synapse neuron projection axon terminus presynapse distal axon calyx of Held cell junction neuron projection terminus sarcomere contractile muscle fiber supramolecular fiber myofibril supramolecular polymer supramolecular complex intracellular vesicle transport vesicle membrane endomembrane system bounding membrane of organelle cytoplasmic vesicle vesicle membrane synaptic vesicle synaptic vesicle membrane vesicle transport vesicle exocytic vesicle membrane intracellular membrane-bounded organelle cytoplasmic vesicle membrane secretory vesicle organelle membrane exocytic vesicle myelin sheath centrosome microtubule organizing center presynaptic cytosol cell periphery plasma membrane catalytic complex nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen voltage-gated potassium channel complex plasma membrane protein complex potassium channel complex extracellular region polymeric cytoskeletal fiber spindle microtubule microtubule

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B, C	IPR001970	Sodium/hydrogen exchanger 1-like	Family
B, C	IPR018422	Cation/H+ exchanger, CPA1 family	Family
B, C	IPR006153	Cation/H+ exchanger, transmembrane domain	Domain
B, C	IPR032103	Sodium/hydrogen exchanger, regulatory region	Domain
B, C	IPR004709	Na+/H+ exchanger	Family
A	IPR002048	EF-hand domain	Domain
A	IPR050230	Calmodulin/Myosin light chain/Troponin C-like	Family
A	IPR018247	EF-Hand 1, calcium-binding site	Binding Site
A	IPR011992	EF-hand domain pair	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B, C	Pharos: P19634	Lichtenstein-Knorr syndrome Barrett esophagus hypertrophic cardiomyopathy Diabetes Mellitus, Experimental congestive heart failure pancreatic intraductal papillary-mucinous neoplasm heart failure ischemia reperfusion injury pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia neurodegenerative disease pancreatic intraductal papillary-mucinous carcinoma
A	Pharos: P0DP23	long QT syndrome catecholaminergic polymorphic ventricular tachycardia Alzheimer disease long QT syndrome 14 cocaine abuse Weight Gain cannabis dependence cocaine dependence phencyclidine abuse catecholaminergic polymorphic ventricular tachycardia 4 rheumatoid arthritis glioblastoma subependymal giant cell astrocytoma large cell medulloblastoma lung adenocarcinoma long QT syndrome catecholaminergic polymorphic ventricular tachycardia Alzheimer disease long QT syndrome 14 cocaine abuse Weight Gain cannabis dependence cocaine dependence phencyclidine abuse catecholaminergic polymorphic ventricular tachycardia 4 rheumatoid arthritis glioblastoma subependymal giant cell astrocytoma large cell medulloblastoma lung adenocarcinoma malignant colon neoplasm malignant pancreatic neoplasm astrocytic tumor myopathy osteosarcoma pituitary cancer Crohn disease primitive neuroectodermal tumor familial long QT syndrome schizophrenia lung cancer malignant ependymoma atypical teratoid rhabdoid tumor nasopharyngeal carcinoma ovarian cancer catecholaminergic polymorphic ventricular tachycardia 2 Pick disease plasma cell myeloma exocrine pancreatic carcinoma psoriasis sinusitis hepatocellular carcinoma ulcerative colitis lymphoplasmacytic lymphoma malignant glioma amyotrophic lateral sclerosis medulloblastoma breast cancer oligodendroglioma pilocytic astrocytoma

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.