2CRD | pdb_00002crd

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2crda_	Small proteins	Knottins (small inhibitors, toxins, lectins)	Scorpion toxin-like	Short-chain scorpion toxins	Charybdotoxin	(Leiurus hebraeus ) [TaxId: 2899558 ],	SCOPe (2.08)

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Short-chain scorpion toxins	8025825	4003142	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Scorpion toxin-like	8038204	3000309	SCOP2 (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Toxin_2	e2crdA1	A: beta barrels	X: EGF-like	H: EGF-related	T: EGF/Laminin	F: Toxin_2	ECOD (v294.2)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	CHARYBDOTOXIN	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 toxin activity	defense response to bacterium biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response response to bacterium response to stress response to external stimulus response to external biotic stimulus response to biotic stimulus defense response to fungus response to fungus cellular process disruption of cell in another organism defense response to bacterium biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response response to bacterium response to stress response to external stimulus response to external biotic stimulus response to biotic stimulus defense response to fungus response to fungus cellular process disruption of cell in another organism disruption of anatomical structure in another organism killing of cells of another organism cell killing	cellular anatomical structure extracellular region

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

Chains	External Link	Type	Class	Superfamily	Family
A	OPM	Monotopic/peripheral	Alpha + Beta monotopic/peripheral	Scorpion toxin-like knottin	Short-chain scorpion toxins

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

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.