Annotations: 3J9P

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth D]	Ank_2	e3j9pD1	A: alpha superhelices	X: Repetitive alpha hairpins	H: Ankyrin repeat (From Topology)	T: Ankyrin repeat	F: Ank_2	ECOD (1.6)
A [auth D]	Ion_trans_1	e3j9pD2	A: alpha complex topology	X: Voltage-gated ion channels (From Topology)	H: Voltage-gated ion channels (From Topology)	T: Voltage-gated ion channels	F: Ion_trans_1	ECOD (1.6)
B [auth A]	Ank_2	e3j9pA1	A: alpha superhelices	X: Repetitive alpha hairpins	H: Ankyrin repeat (From Topology)	T: Ankyrin repeat	F: Ank_2	ECOD (1.6)
B [auth A]	Ion_trans_1	e3j9pA2	A: alpha complex topology	X: Voltage-gated ion channels (From Topology)	H: Voltage-gated ion channels (From Topology)	T: Voltage-gated ion channels	F: Ion_trans_1	ECOD (1.6)
C [auth B]	Ank_2	e3j9pB1	A: alpha superhelices	X: Repetitive alpha hairpins	H: Ankyrin repeat (From Topology)	T: Ankyrin repeat	F: Ank_2	ECOD (1.6)
C [auth B]	Ion_trans_1	e3j9pB2	A: alpha complex topology	X: Voltage-gated ion channels (From Topology)	H: Voltage-gated ion channels (From Topology)	T: Voltage-gated ion channels	F: Ion_trans_1	ECOD (1.6)
D [auth C]	Ank_2	e3j9pC1	A: alpha superhelices	X: Repetitive alpha hairpins	H: Ankyrin repeat (From Topology)	T: Ankyrin repeat	F: Ank_2	ECOD (1.6)
D [auth C]	Ion_trans_1	e3j9pC2	A: alpha complex topology	X: Voltage-gated ion channels (From Topology)	H: Voltage-gated ion channels (From Topology)	T: Voltage-gated ion channels	F: Ion_trans_1	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth D], B [auth A], C [auth B], D [auth C]	PF00023	Ankyrin repeat (Ank)	Ankyrin repeat	-	Repeat
A [auth D], B [auth A], C [auth B], D [auth C]	PF00520	Ion transport protein (Ion_trans)	Ion transport protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth D], B [auth A], C [auth B], D [auth C]	Maltose-binding periplasmic protein, Transient receptor potential cation channel subfamily A member 1 chimera	transporter activity carbohydrate transmembrane transporter activity transmembrane transporter activity oligosaccharide binding binding disaccharide binding carbohydrate binding maltose binding calcium channel activity monoatomic cation transmembrane transporter activity intracellularly ligand-gated monoatomic ion channel activity gated channel activity monoatomic ion channel activity intracellularly gated calcium channel activity transporter activity carbohydrate transmembrane transporter activity transmembrane transporter activity oligosaccharide binding binding disaccharide binding carbohydrate binding maltose binding calcium channel activity monoatomic cation transmembrane transporter activity intracellularly ligand-gated monoatomic ion channel activity gated channel activity monoatomic ion channel activity intracellularly gated calcium channel activity ligand-gated channel activity ligand-gated monoatomic ion channel activity monoatomic cation channel activity passive transmembrane transporter activity calcium ion transmembrane transporter activity inorganic molecular entity transmembrane transporter activity channel activity ligand-gated calcium channel activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity metal ion transmembrane transporter activity ligand-gated monoatomic cation channel activity temperature-gated ion channel activity temperature-gated cation channel activity identical protein binding protein binding	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process cell chemotaxis chemotaxis response to external stimulus cellular response to chemical stimulus taxis response to chemical cell migration cell motility cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process cell chemotaxis chemotaxis response to external stimulus cellular response to chemical stimulus taxis response to chemical cell migration cell motility locomotion localization transport organic substance transport carbohydrate transport oligosaccharide transport disaccharide transport establishment of localization maltose transport polysaccharide localization dextrin transport macromolecule localization maltodextrin transmembrane transport polysaccharide transport response to organic substance response to disaccharide response to oxygen-containing compound detection of maltose stimulus detection of stimulus response to carbohydrate detection of chemical stimulus detection of disaccharide stimulus response to maltose detection of carbohydrate stimulus response to xenobiotic stimulus multicellular organismal process multicellular organismal response to stress response to pain detection of external stimulus detection of stimulus involved in sensory perception of pain system process detection of mechanical stimulus involved in sensory perception of pain nervous system process response to mechanical stimulus sensory perception of pain detection of mechanical stimulus involved in sensory perception sensory perception of mechanical stimulus detection of abiotic stimulus sensory perception detection of mechanical stimulus response to abiotic stimulus detection of stimulus involved in sensory perception response to cold response to temperature stimulus monoatomic ion transport thermoception sensory perception of temperature stimulus protein-containing complex organization protein homotetramerization cellular component organization cellular component biogenesis cellular component assembly protein complex oligomerization protein tetramerization protein-containing complex assembly protein homooligomerization cellular component organization or biogenesis sensory perception of chemical stimulus detection of chemical stimulus involved in sensory perception of pain detection of chemical stimulus involved in sensory perception inorganic ion homeostasis intracellular calcium ion homeostasis homeostatic process calcium ion homeostasis cellular homeostasis chemical homeostasis intracellular monoatomic cation homeostasis monoatomic ion homeostasis intracellular chemical homeostasis monoatomic cation homeostasis intracellular monoatomic ion homeostasis monoatomic ion transmembrane transport inorganic ion transmembrane transport calcium ion transport metal ion transport inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport monoatomic cation transport calcium ion transmembrane transport cellular response to oxidative stress cellular response to chemical stress cellular response to oxygen-containing compound cellular response to hydrogen peroxide response to reactive oxygen species response to inorganic substance response to hydrogen peroxide response to oxidative stress cellular response to reactive oxygen species regulation of biological process regulation of cellular process cell surface receptor signaling pathway signaling biological regulation signal transduction cell communication cellular response to organic substance response to organic cyclic compound	ATPase dependent transmembrane transport complex protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex cellular anatomical entity transporter complex ATP-binding cassette (ABC) transporter complex cell periphery transmembrane transporter complex ATP-binding cassette (ABC) transporter complex, substrate-binding subunit-containing maltose transport complex periplasmic space ATPase dependent transmembrane transport complex protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex cellular anatomical entity transporter complex ATP-binding cassette (ABC) transporter complex cell periphery transmembrane transporter complex ATP-binding cassette (ABC) transporter complex, substrate-binding subunit-containing maltose transport complex periplasmic space outer membrane-bounded periplasmic space cell envelope stereocilium bundle cluster of actin-based cell projections

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth D], B [auth A], C [auth B], D [auth C]	IPR006061	Solute-binding family 1, conserved site	Conserved Site
A [auth D], B [auth A], C [auth B], D [auth C]	IPR006060	Maltose/Cyclodextrin ABC transporter, substrate-binding protein	Family
A [auth D], B [auth A], C [auth B], D [auth C]	IPR006059	Bacterial-type extracellular solute-binding protein	Family
A [auth D], B [auth A], C [auth B], D [auth C]	IPR036770	Ankyrin repeat-containing domain superfamily	Homologous Superfamily
A [auth D], B [auth A], C [auth B], D [auth C]	IPR002110	Ankyrin repeat	Repeat
A [auth D], B [auth A], C [auth B], D [auth C]	IPR005821	Ion transport domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth D], B [auth A], C [auth B], D [auth C]	Pharos: O75762	familial episodic pain syndrome with predominantly upper body involvement overactive bladder Bronchial Hyperreactivity asthma pain agnosia pancreatic intraductal papillary-mucinous carcinoma cutaneous melanoma malignant colon neoplasm osteosarcoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia ulcerative colitis malignant mesothelioma ovarian cancer psoriasis gastric carcinoma

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A [auth D], B [auth A], C [auth B], D [auth C]	OPM	Transmembrane	Alpha-helical polytopic	Ion channel (VIC) superfamily	Transient receptor potential channels

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A [auth D], B [auth A], C [auth B], D [auth C]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A [auth D], B [auth A], C [auth B], D [auth C]	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A [auth D], B [auth A], C [auth B], D [auth C]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Channels: Transient Receptor Potential (TRP)	TRPA1 transient receptor potential channel (wasabi receptor)

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.