Annotations: 3TRQ

Crystal structure of native rabbit skeletal calsequestrin

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
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)
A	SCOP2B Superfamily	Thioredoxin-like	8044369	3000031	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Thioredoxin-like	8044371	3000031	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Thioredoxin-like	8044370	3000031	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	DHDPS	e3trqA1	A: alpha arrays	X: Alpha-beta plaits	H: Phage tail protein-like	T: Transmembrane protein 14A	F: DHDPS	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.30.10	Alpha Beta	3-Layer(aba) Sandwich	Glutaredoxin	Glutaredoxin	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF01216	Calsequestrin (Calsequestrin)	Calsequestrin	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Calsequestrin-1	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding calcium ion binding potassium ion binding alkali metal ion binding identical protein binding protein binding protein homodimerization activity protein dimerization activity	cellular component organization cellular component biogenesis protein polymerization cellular component assembly protein-containing complex organization protein-containing complex assembly cellular process cellular component organization or biogenesis regulation of store-operated calcium entry regulation of calcium ion transport regulation of localization regulation of biological process transport regulation of transport cellular component organization cellular component biogenesis protein polymerization cellular component assembly protein-containing complex organization protein-containing complex assembly cellular process cellular component organization or biogenesis regulation of store-operated calcium entry regulation of calcium ion transport regulation of localization regulation of biological process transport regulation of transport regulation of monoatomic ion transport biological regulation establishment of localization calcium ion transport metal ion transport localization store-operated calcium entry monoatomic ion transport monoatomic cation transport regulation of metal ion transport positive regulation of cation transmembrane transport positive regulation of calcium ion transport regulation of cellular process monoatomic ion transmembrane transport positive regulation of biological process regulation of monoatomic ion transmembrane transport regulation of calcium ion transmembrane transport monoatomic cation transmembrane transport positive regulation of monoatomic ion transport positive regulation of calcium ion transmembrane transport positive regulation of transmembrane transport positive regulation of monoatomic ion transmembrane transport positive regulation of release of sequestered calcium ion into cytosol positive regulation of cellular process calcium ion transmembrane import into cytosol regulation of release of sequestered calcium ion into cytosol transmembrane transport release of sequestered calcium ion into cytosol regulation of transmembrane transport positive regulation of transport regulation of monoatomic cation transmembrane transport calcium ion transmembrane transport regulation of transmembrane transporter activity positive regulation of molecular function regulation of store-operated calcium channel activity positive regulation of store-operated calcium channel activity positive regulation of cation channel activity regulation of molecular function positive regulation of transporter activity positive regulation of ion transmembrane transporter activity cellular response to stimulus multicellular organismal process system process response to stimulus regulation of system process sarcoplasmic reticulum calcium ion transport release of sequestered calcium ion into cytosol by sarcoplasmic reticulum intracellular signal transduction cell communication multicellular organismal movement regulation of skeletal muscle contraction by regulation of release of sequestered calcium ion intracellular signaling cassette signal transduction regulation of skeletal muscle contraction by calcium ion signaling release of sequestered calcium ion into cytosol by endoplasmic reticulum skeletal muscle contraction muscle contraction regulation of striated muscle contraction regulation of muscle contraction calcium-mediated signaling signaling striated muscle contraction musculoskeletal movement regulation of skeletal muscle contraction regulation of multicellular organismal process nervous system process neuromuscular process muscle system process regulation of muscle system process regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum cellular developmental process cellular component assembly involved in morphogenesis cell development membraneless organelle assembly muscle cell differentiation muscle structure development striated muscle cell development cellular anatomical entity morphogenesis muscle cell development cell differentiation sarcomere organization anatomical structure development actin filament-based process developmental process actomyosin structure organization actin cytoskeleton organization organelle assembly anatomical structure morphogenesis myofibril assembly organelle organization anatomical structure formation involved in morphogenesis striated muscle cell differentiation supramolecular fiber organization animal gross anatomical part developmental process cytoskeleton organization	intracellular anatomical structure intracellular membraneless organelle Z disc sarcomere intracellular organelle I band cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer intracellular anatomical structure intracellular membraneless organelle Z disc sarcomere intracellular organelle I band cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex membrane-bounded organelle organelle subcompartment membrane intracellular membrane-bounded organelle endomembrane system sarcoplasm endoplasmic reticulum subcompartment bounding membrane of organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum sarcoplasmic reticulum sarcoplasmic reticulum membrane organelle membrane endoplasmic reticulum membrane membrane-enclosed lumen sarcoplasmic reticulum lumen intracellular organelle lumen endoplasmic reticulum lumen organelle lumen mitochondrion mitochondrial matrix

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR041858	Calsequestrin, middle TRX-fold domain	Domain
A	IPR001393	Calsequestrin	Family
A	IPR041860	Calsequestrin, C-terminal TRX-fold domain	Domain
A	IPR018233	Calsequestrin, conserved site	Conserved Site
A	IPR036249	Thioredoxin-like superfamily	Homologous Superfamily
A	IPR041859	Calsequestrin, N-terminal TRX-fold domain	Domain

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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.