2MUB

Solution structure of the analgesic sea anemone peptide APETx2

External Resource: Annotation


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
APF07936e2mubA1 A: few secondary structure elementsX: Defensin-likeH: Defensin-relatedT: Defensin-relatedF: PF07936ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A2.20.20.10 Mainly Beta Single Sheet Anthopleurin-A Anthopleurin-ACATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF07936Potassium-channel blocking toxin (Defensin_4)Potassium-channel blocking toxinThis 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

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Toxin APETx2 -

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR012414BDS potassium channel toxinFamily
IPR023355Myotoxin/Anemone neurotoxin domain superfamilyHomologous Superfamily