Annotations: 7RXQ

Crystal structure of junctophilin-2 in complex with a CaV1.1 peptide

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	AAA_lid_RFC1	e7rxqA1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: AAA_lid_RFC1	ECOD (v295)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02493	MORN repeat (MORN)	MORN repeat	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	Voltage-dependent L-type calcium channel subunit alpha-1S	protein binding binding transmembrane transporter binding calcium channel activity monoatomic cation transmembrane transporter activity voltage-gated calcium channel activity gated channel activity monoatomic ion channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity calcium ion transmembrane transporter activity protein binding binding transmembrane transporter binding calcium channel activity monoatomic cation transmembrane transporter activity voltage-gated calcium channel activity gated channel activity monoatomic ion channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity calcium ion transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity high voltage-gated calcium channel activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity calmodulin binding cation binding ion binding metal ion binding small molecule binding	import into cell calcium ion transmembrane import into cytosol transport monoatomic ion transmembrane transport import across plasma membrane establishment of localization inorganic cation import across plasma membrane calcium ion transport metal ion transport monoatomic cation transmembrane transport transmembrane transport localization calcium ion import across plasma membrane inorganic ion import across plasma membrane monoatomic ion transport import into cell calcium ion transmembrane import into cytosol transport monoatomic ion transmembrane transport import across plasma membrane establishment of localization inorganic cation import across plasma membrane calcium ion transport metal ion transport monoatomic cation transmembrane transport transmembrane transport localization calcium ion import across plasma membrane inorganic ion import across plasma membrane monoatomic ion transport cellular process calcium ion import calcium ion import into cytosol monoatomic cation transport calcium ion transmembrane transport release of sequestered calcium ion into cytosol multicellular organismal process system process muscle contraction muscle system process cellular response to nitrogen compound cellular response to stimulus response to stimulus cellular response to caffeine response to nitrogen compound response to purine-containing compound response to alkaloid cellular response to chemical stimulus response to chemical cellular response to alkaloid cellular response to purine-containing compound response to caffeine regulation of calcium ion transport regulation of localization regulation of cellular process regulation of monoatomic ion transmembrane transport regulation of calcium ion transmembrane transport regulation of metal ion transport regulation of biological process regulation of transport regulation of release of sequestered calcium ion into cytosol regulation of monoatomic ion transport biological regulation regulation of transmembrane transport regulation of monoatomic cation transmembrane transport regulation of system process positive regulation of biological process regulation of muscle system process regulation of muscle contraction positive regulation of muscle contraction positive regulation of multicellular organismal process regulation of multicellular organismal process	protein-containing complex plasma membrane protein complex sarcolemma voltage-gated calcium channel complex plasma membrane membrane membrane protein complex cation channel complex transporter complex cell periphery cellular anatomical structure transmembrane transporter complex T-tubule L-type voltage-gated calcium channel complex protein-containing complex plasma membrane protein complex sarcolemma voltage-gated calcium channel complex plasma membrane membrane membrane protein complex cation channel complex transporter complex cell periphery cellular anatomical structure transmembrane transporter complex T-tubule L-type voltage-gated calcium channel complex calcium channel complex monoatomic ion channel complex
A	Junctophilin-2 N-terminal fragment	phosphatidylinositol-3,5-bisphosphate binding ion binding binding anion binding phosphatidylinositol bisphosphate binding phospholipid binding lipid binding phosphatidylinositol phosphate binding small molecule binding DNA-binding transcription factor activity, RNA polymerase II-specific DNA-binding transcription repressor activity, RNA polymerase II-specific transcription regulator activity DNA-binding transcription repressor activity DNA-binding transcription factor activity phosphatidylinositol-3,5-bisphosphate binding ion binding binding anion binding phosphatidylinositol bisphosphate binding phospholipid binding lipid binding phosphatidylinositol phosphate binding small molecule binding DNA-binding transcription factor activity, RNA polymerase II-specific DNA-binding transcription repressor activity, RNA polymerase II-specific transcription regulator activity DNA-binding transcription repressor activity DNA-binding transcription factor activity phosphatidic acid binding phosphatidylinositol-4,5-bisphosphate binding DNA binding nucleic acid binding phosphatidylinositol-3,4,5-trisphosphate binding phosphatidylinositol-4-phosphate binding phosphatidylinositol-5-phosphate binding phosphatidylinositol-3-phosphate binding modified amino acid binding phosphatidylserine binding	calcium ion transmembrane import into cytosol transport monoatomic ion transmembrane transport positive regulation of cytosolic calcium ion concentration biological regulation establishment of localization calcium ion transport metal ion transport monoatomic cation transmembrane transport transmembrane transport localization monoatomic ion transport cellular process regulation of biological quality calcium ion transmembrane import into cytosol transport monoatomic ion transmembrane transport positive regulation of cytosolic calcium ion concentration biological regulation establishment of localization calcium ion transport metal ion transport monoatomic cation transmembrane transport transmembrane transport localization monoatomic ion transport cellular process regulation of biological quality monoatomic cation transport calcium ion transport into cytosol calcium ion transmembrane transport regulation of calcium ion transport regulation of localization regulation of cellular process sarcoplasmic reticulum calcium ion transport regulation of monoatomic ion transmembrane transport release of sequestered calcium ion into cytosol by sarcoplasmic reticulum regulation of calcium ion transmembrane transport regulation of metal ion transport release of sequestered calcium ion into cytosol by endoplasmic reticulum regulation of biological process regulation of transport regulation of release of sequestered calcium ion into cytosol regulation of monoatomic ion transport release of sequestered calcium ion into cytosol regulation of transmembrane transport regulation of monoatomic cation transmembrane transport regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process metabolic process macromolecule metabolic process inorganic ion homeostasis chemical homeostasis homeostatic process monoatomic ion homeostasis calcium ion homeostasis monoatomic cation homeostasis developmental process regulation of muscle tissue development heart development multicellular organismal process regulation of developmental process cardiac muscle tissue development animal organ development regulation of striated muscle tissue development tissue development striated muscle tissue development circulatory system development muscle structure development multicellular organism development regulation of muscle organ development regulation of cardiac muscle tissue development anatomical structure development muscle tissue development muscle organ development animal gross anatomical part developmental process system development cellular response to stimulus heart process system process response to stimulus signaling regulation of heart contraction regulation of system process cardiac muscle contraction intracellular signal transduction cell communication striated muscle contraction circulatory system process intracellular signaling cassette regulation of multicellular organismal process signal transduction blood circulation regulation of cardiac muscle contraction by calcium ion signaling regulation of cardiac muscle contraction muscle contraction muscle system process regulation of muscle system process regulation of blood circulation regulation of striated muscle contraction calcium-mediated signaling regulation of muscle contraction heart contraction	membrane-bounded organelle intracellular anatomical structure organelle subcompartment membrane intracellular membrane-bounded organelle endomembrane system sarcoplasm endoplasmic reticulum subcompartment intracellular organelle cellular anatomical structure bounding membrane of organelle organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum membrane-bounded organelle intracellular anatomical structure organelle subcompartment membrane intracellular membrane-bounded organelle endomembrane system sarcoplasm endoplasmic reticulum subcompartment intracellular organelle cellular anatomical structure bounding membrane of organelle organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum sarcoplasmic reticulum sarcoplasmic reticulum membrane cytoplasm junctional sarcoplasmic reticulum membrane organelle membrane endoplasmic reticulum membrane intracellular membraneless organelle Z disc sarcomere I band membraneless organelle contractile muscle fiber supramolecular fiber myofibril supramolecular polymer supramolecular complex cell periphery plasma membrane protein-containing complex junctional membrane complex nucleus

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR005821	Ion transport domain	Domain
B	IPR005446	Voltage-dependent calcium channel, L-type, alpha-1 subunit	Family
B	IPR014873	Voltage-dependent calcium channel, alpha-1 subunit, IQ domain	Domain
B	IPR050599	Voltage-dependent calcium channel alpha-1 subunit	Family
B	IPR005450	Voltage-dependent calcium channel, L-type, alpha-1S subunit	Family
B	IPR002077	Voltage-dependent calcium channel, alpha-1 subunit	Family
B	IPR031649	Voltage-dependent L-type calcium channel, IQ-associated domain	Domain
B	IPR027359	Voltage-dependent channel domain superfamily	Homologous Superfamily
A	IPR017191	Junctophilin	Family
A	IPR003409	MORN repeat	Repeat

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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.

7RXQ | pdb_00007rxq

Crystal structure of junctophilin-2 in complex with a CaV1.1 peptide

External Resource: Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Protein Family Annotation Pfam Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage