1H8B | pdb_00001h8b

EF-hands 3,4 from alpha-actinin / Z-repeat 7 from titin

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	d1h8ba_	All alpha proteins	EF Hand-like	EF-hand	EF-hand modules in multidomain proteins	alpha-Actinin	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	SCOP2 Family	EF-hand modules in multidomain proteins	8020623	4000949	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	EF-hand	8033003	3001983	SCOP2 (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	EFhand_Ca_insen	e1h8bA1	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: EFhand_Ca_insen	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 (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF08726	Ca2+ insensitive EF hand (EFhand_Ca_insen)	Ca2+ insensitive EF hand	EF hands are helix-loop-helix binding motifs involved in the regulation of many cellular processes. EF hands usually bind to Ca2+ ions which causes a major conformational change that allows the protein to interact with its designated targets. This ...	EF hands are helix-loop-helix binding motifs involved in the regulation of many cellular processes. EF hands usually bind to Ca2+ ions which causes a major conformational change that allows the protein to interact with its designated targets. This domain corresponds to an EF hand which has partially or entirely lost its calcium-binding properties. The calcium insensitive EF hand is still able to mediate protein-protein recognition [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	TITIN	cytoskeletal protein binding protein binding binding telethonin binding	multicellular organismal process cardiac muscle cell development cellular developmental process cell development muscle cell differentiation striated muscle tissue development muscle structure development multicellular organism development striated muscle cell development muscle cell development cell differentiation anatomical structure development cardiac cell development muscle tissue development multicellular organismal process cardiac muscle cell development cellular developmental process cell development muscle cell differentiation striated muscle tissue development muscle structure development multicellular organism development striated muscle cell development muscle cell development cell differentiation anatomical structure development cardiac cell development muscle tissue development system development developmental process heart development cardiac muscle tissue development animal organ development cardiac muscle cell differentiation tissue development cardiocyte differentiation circulatory system development cellular process striated muscle cell differentiation heart morphogenesis anatomical structure morphogenesis animal organ morphogenesis	intracellular anatomical structure intracellular membraneless organelle sarcomere intracellular organelle I band cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex
A	ALPHA-ACTININ 2, SKELETAL MUSCLE ISOFORM	cytoskeletal protein binding titin binding protein binding binding actin binding protein-containing complex binding actin filament binding structural molecule activity structural constituent of muscle structural constituent of postsynapse structural constituent of cytoskeleton structural constituent of synapse structural constituent of postsynaptic actin cytoskeleton FATZ binding cytoskeletal protein binding titin binding protein binding binding actin binding protein-containing complex binding actin filament binding structural molecule activity structural constituent of muscle structural constituent of postsynapse structural constituent of cytoskeleton structural constituent of synapse structural constituent of postsynaptic actin cytoskeleton FATZ binding identical protein binding cation binding ion binding calcium ion binding metal ion binding small molecule binding protein domain specific binding LIM domain binding transcription coactivator activity transcription regulator activity transcription coregulator activity protein-macromolecule adaptor activity molecular adaptor activity phosphatidylinositol-4,5-bisphosphate binding anion binding phosphatidylinositol bisphosphate binding phospholipid binding lipid binding phosphatidylinositol phosphate binding phosphatidylinositol binding transmembrane transporter binding titin Z domain binding cell adhesion molecule binding integrin binding signaling receptor binding transporter activator activity channel regulator activity molecular function activator activity molecular function regulator activity channel activator activity transporter regulator activity	regulation of localization regulation of biological process regulation of protein localization biological regulation negative regulation of biological process localization negative regulation of protein localization to cell surface protein localization to cell surface macromolecule localization regulation of protein localization to cell surface intracellular protein localization negative regulation of protein localization cellular response to stimulus cellular response to nitrogen compound regulation of localization regulation of biological process regulation of protein localization biological regulation negative regulation of biological process localization negative regulation of protein localization to cell surface protein localization to cell surface macromolecule localization regulation of protein localization to cell surface intracellular protein localization negative regulation of protein localization cellular response to stimulus cellular response to nitrogen compound phospholipase C-activating angiotensin-activated signaling pathway response to angiotensin regulation of cellular process response to stimulus signaling response to peptide hormone angiotensin-activated signaling pathway cellular response to angiotensin cell communication phospholipase C-activating G protein-coupled receptor signaling pathway cellular response to endogenous stimulus response to hormone signal transduction cellular response to hormone stimulus response to endogenous stimulus response to oxygen-containing compound cellular response to peptide hormone stimulus response to nitrogen compound cellular response to oxygen-containing compound cellular response to chemical stimulus response to chemical cellular process G protein-coupled receptor signaling pathway protein localization to cell periphery cellular localization protein localization to plasma membrane localization within membrane protein localization to membrane regulation of apoptotic process apoptotic process regulation of programmed cell death cell death programmed cell death transport positive regulation of biological process vesicle-mediated transport endocytic recycling establishment of localization in cell positive regulation of intracellular transport regulation of endocytic recycling positive regulation of cellular process regulation of intracellular transport regulation of transport positive regulation of endocytic recycling intracellular transport regulation of vesicle-mediated transport establishment of localization endosomal transport vesicle-mediated transport to the plasma membrane positive regulation of transport regulation of cellular localization cellular component organization organelle organization actin cytoskeleton organization actin filament-based process cellular component organization or biogenesis cytoskeleton organization regulation of potassium ion transport regulation of monoatomic ion transport metal ion transport positive regulation of potassium ion transport positive regulation of monoatomic ion transport monoatomic ion transport potassium ion transport monoatomic cation transport regulation of metal ion transport regulation of biological quality regulation of membrane potential cellular component biogenesis cellular component assembly plasma membrane bounded cell projection organization cell projection organization microspike assembly plasma membrane bounded cell projection assembly cell projection assembly cell adhesion focal adhesion assembly cell-substrate junction assembly cell-substrate adhesion cell junction organization cell-matrix adhesion cell junction assembly cell-substrate junction organization developmental process muscle structure development muscle cell development cellular developmental process cell differentiation anatomical structure development cell development muscle cell differentiation negative regulation of potassium ion transport negative regulation of monoatomic ion transport negative regulation of transport positive regulation of cation transmembrane transport monoatomic ion transmembrane transport regulation of transmembrane transporter activity regulation of monoatomic ion transmembrane transport monoatomic cation transmembrane transport positive regulation of molecular function positive regulation of transmembrane transport positive regulation of monoatomic ion transmembrane transport positive regulation of cation channel activity transmembrane transport regulation of molecular function regulation of transmembrane transport positive regulation of transporter activity positive regulation of ion transmembrane transporter activity regulation of monoatomic cation transmembrane transport multicellular organismal process cardiac muscle cell development striated muscle tissue development multicellular organism development striated muscle cell development cardiac cell development muscle tissue development system development heart development cardiac muscle tissue development animal organ development cardiac muscle cell differentiation tissue development cardiocyte differentiation circulatory system development striated muscle cell differentiation positive regulation of organelle organization regulation of cytoskeleton organization regulation of cellular component organization positive regulation of cellular component organization regulation of actin filament-based process regulation of cellular component size protein-containing complex disassembly positive regulation of actin filament depolymerization regulation of protein-containing complex disassembly actin filament depolymerization regulation of actin filament depolymerization positive regulation of protein-containing complex disassembly cellular component disassembly actin polymerization or depolymerization regulation of actin filament organization protein-containing complex organization regulation of protein depolymerization positive regulation of protein depolymerization positive regulation of cytoskeleton organization actin filament organization regulation of actin polymerization or depolymerization positive regulation of supramolecular fiber organization actin filament uncapping regulation of organelle organization regulation of actin filament length regulation of actin cytoskeleton organization regulation of supramolecular fiber organization supramolecular fiber organization protein depolymerization regulation of anatomical structure size cellular component assembly involved in morphogenesis membraneless organelle assembly cellular anatomical entity morphogenesis sarcomere organization actomyosin structure organization organelle assembly anatomical structure morphogenesis myofibril assembly anatomical structure formation involved in morphogenesis	postsynaptic specialization membrane postsynaptic specialization synapse membrane plasma membrane postsynaptic density membrane synaptic membrane cell periphery postsynaptic density postsynapse cellular anatomical structure neuron to neuron synapse organelle cell junction postsynaptic specialization membrane postsynaptic specialization synapse membrane plasma membrane postsynaptic density membrane synaptic membrane cell periphery postsynaptic density postsynapse cellular anatomical structure neuron to neuron synapse organelle cell junction postsynaptic membrane asymmetric synapse plasma membrane region cell projection pseudopodium plasma membrane bounded cell projection intracellular anatomical structure intracellular membraneless organelle Z disc sarcomere intracellular organelle I band membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region extracellular space vesicle extracellular membrane-bounded organelle cytosol glutamatergic synapse cytoskeleton neuron spine neuron projection dendritic spine somatodendritic compartment dendrite dendritic tree vesicle lumen intracellular vesicle membrane-enclosed lumen cytoplasmic vesicle lumen intracellular membrane-bounded organelle secretory granule lumen endomembrane system intracellular organelle lumen cytoplasmic vesicle organelle lumen secretory granule secretory vesicle platelet alpha granule platelet alpha granule lumen polymeric cytoskeletal fiber actin filament actin cytoskeleton postsynaptic density, intracellular component postsynaptic specialization, intracellular component actin-based cell projection filopodium anchoring junction focal adhesion cell-substrate junction postsynaptic cytoskeleton postsynaptic actin cytoskeleton cell cortex cortical cytoskeleton cortical actin cytoskeleton

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
B	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
B	IPR003598	Immunoglobulin subtype 2	Domain
B	IPR015129	Titin, Z repeat	Repeat
B	IPR003599	Immunoglobulin domain subtype	Domain
B	IPR007110	Immunoglobulin-like domain	Domain
B	IPR013098	Immunoglobulin I-set	Domain
A	IPR002048	EF-hand domain	Domain
A	IPR001589	Actinin-type actin-binding domain, conserved site	Conserved Site
A	IPR036872	CH domain superfamily	Homologous Superfamily
A	IPR002017	Spectrin repeat	Repeat
A	IPR001715	Calponin homology domain	Domain
A	IPR014837	EF-hand, Ca insensitive	Domain
A	IPR011992	EF-hand domain pair	Homologous Superfamily
A	IPR018159	Spectrin/alpha-actinin	Repeat

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P35609	dilated cardiomyopathy 1AA dilated cardiomyopathy cardiomyopathy hypertrophic cardiomyopathy medulloblastoma osteosarcoma pilocytic astrocytoma arrhythmogenic right ventricular cardiomyopathy atypical teratoid rhabdoid tumor Charcot-Marie-Tooth disease familial isolated dilated cardiomyopathy large cell medulloblastoma malignant ependymoma myopathy ovarian cancer dilated cardiomyopathy 1AA dilated cardiomyopathy cardiomyopathy hypertrophic cardiomyopathy medulloblastoma osteosarcoma pilocytic astrocytoma arrhythmogenic right ventricular cardiomyopathy atypical teratoid rhabdoid tumor Charcot-Marie-Tooth disease familial isolated dilated cardiomyopathy large cell medulloblastoma malignant ependymoma myopathy ovarian cancer primitive neuroectodermal tumor astrocytic tumor Conduction disorder of the heart familial dilated cardiomyopathy glioblastoma lung adenocarcinoma malignant glioma non-small cell lung carcinoma Pick disease psoriasis attention deficit hyperactivity disorder, inattentive type familial hypertrophic cardiomyopathy lung cancer

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.