Annotations: 2AXK

Solution structure of discrepin, a scorpion venom toxin blocking K+ channels.

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Protein Modification Annotation

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Short-chain scorpion toxins	8073811	4003142	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Scorpion toxin-like	8073812	3000309	SCOP2 (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		e2axkA1	A: alpha arrays	X: Globin-like	H: Globin-like	T: Globin-like	F:	ECOD (v295.2)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	discrepin	molecular function inhibitor activity potassium channel regulator activity channel regulator activity transporter inhibitor activity ion channel inhibitor activity ion channel regulator activity potassium channel inhibitor activity molecular function regulator activity transporter regulator activity channel inhibitor activity toxin activity	biological process involved in interspecies interaction between organisms venom-mediated inhibition of voltage-gated potassium channel activity venom-mediated perturbation of voltage-gated potassium channel activity venom-mediated perturbation of ion channel activity venom-mediated perturbation of biological process modulation of process of another organism venom-mediated suppression of platelet aggregation venom-mediated perturbation of blood circulation venom-mediated perturbation of hemostasis	cellular anatomical structure extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036574	Knottin, scorpion toxin-like superfamily	Homologous Superfamily
A	IPR001947	Scorpion short chain toxin, potassium channel inhibitor	Family

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A	PCA	Parent Component: GLN : AA0031 : 2-pyrrolidone-5-carboxylic acid (Gln) MOD:00040 , 2-pyrrolidone-5-carboxylic acid (Glu) MOD:00420