1BDS

DETERMINATION OF THE THREE-DIMENSIONAL SOLUTION STRUCTURE OF THE ANTIHYPERTENSIVE AND ANTIVIRAL PROTEIN BDS-I FROM THE SEA ANEMONE ANEMONIA SULCATA. A STUDY USING NUCLEAR MAGNETIC RESONANCE AND HYBRID DISTANCE GEOMETRY-DYNAMICAL SIMULATED ANNEALING

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

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1bdsa_	Small proteins	Defensin-like	Defensin-like	Defensin	BDs-I defensin	snake-locks sea anemone (Anemonia sulcata ) [TaxId: 6108 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Defensin-like	8038621	3000681	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	Defensin_4	e1bdsA1	A: few secondary structure elements	X: Defensin-like	H: Defensin-related	T: Defensin-related	F: Defensin_4	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.20.20.10	Mainly Beta	Single Sheet	Anthopleurin-A	Anthopleurin-A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF07936	Potassium-channel blocking toxin (Defensin_4)	Potassium-channel blocking toxin	This family features the antihypertensive and antiviral proteins BDS-I (Swiss:P11494) and BDS-II (Swiss:P59084) expressed by Anemonia sulcata. BDS-I is organised into a triple-stranded antiparallel beta-sheet, with an additional small antiparallel be ...	This family features the antihypertensive and antiviral proteins BDS-I (Swiss:P11494) and BDS-II (Swiss:P59084) expressed by Anemonia sulcata. BDS-I is organised into a triple-stranded antiparallel beta-sheet, with an additional small antiparallel beta-sheet at the N-terminus [1]. Both peptides are known to specifically block the Kv3.4 potassium channel, and thus bring about a decrease in blood pressure [2]. Moreover, they inhibit the cytopathic effects of mouse hepatitis virus strain MHV-A59 on mouse liver cells, by an unknown mechanism [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	BDS-I	molecular function inhibitor activity channel regulator activity transporter inhibitor activity ion channel inhibitor activity ion channel regulator activity molecular function regulator activity transporter regulator activity channel inhibitor activity potassium channel regulator activity sodium channel regulator activity toxin activity	multicellular organismal process system process circulatory system process regulation of blood pressure biological regulation regulation of biological quality blood circulation	extracellular region cellular anatomical entity cell periphery intracellular organelle cell cortex intracellular anatomical structure organelle intracellular non-membrane-bounded organelle nematocyst cytoplasm non-membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR012414	BDS potassium channel toxin	Family
A	IPR023355	Myotoxin/Anemone neurotoxin domain superfamily	Homologous Superfamily

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.