Detail Information for IndEnz0002013648
IED ID IndEnz0002013648
Enzyme Type ID protease013648
Protein Name Kunitz-type serine protease inhibitor Hg1
Delta-KTx 1.1
Gene Name
Organism Hoffmannihadrurus gertschi (Scorpion) (Hadrurus gertschi)
Taxonomic Lineage cellular organisms Eukaryota Opisthokonta Metazoa Eumetazoa Bilateria Protostomia Ecdysozoa Panarthropoda Arthropoda Chelicerata Arachnida Scorpiones Iurida Iuroidea Caraboctonidae Hadrurinae Hadrurus Hoffmannihadrurus gertschi (Scorpion) (Hadrurus gertschi)
Enzyme Sequence MIIFYGLFSILVLTSINIAEAGHHNRVNCLLPPKTGPCKGSFARYYFDIETGSCKAFIYGGCEGNSNNFSEKHHCEKRCRGFRKFGGK
Enzyme Length 88
Uniprot Accession Number P0C8W3
Absorption
Active Site
Activity Regulation
Binding Site
Calcium Binding
catalytic Activity
DNA Binding
EC Number
Enzyme Function FUNCTION: Dual-function toxin that completely inhibits the activity of trypsin at a molar ratio of 1:1 (dissociation constant of 107 nM) and that inhibits mKv1.3/KCNA3 potassium channel currents with an IC(50) of 6.2 nM (where 1 uM inhibits 80% of currents). Also has weak inhibitory activity against mKv1.1/KCNA1 (where 1 uM inhibits less than 50% of currents), hKv1.2/KCNA2 (where 1 uM inhibits less than 50% of currents), and hKCa2.3/KCNN3. {ECO:0000269|PubMed:22354971}.
Temperature Dependency
PH Dependency
Pathway
nucleotide Binding
Features Chain (1); Disulfide bond (3); Domain (1); Glycosylation (1); Mutagenesis (4); Signal peptide (1); Site (2)
Keywords Disulfide bond;Glycoprotein;Ion channel impairing toxin;Potassium channel impairing toxin;Protease inhibitor;Secreted;Serine protease inhibitor;Signal;Toxin;Voltage-gated potassium channel impairing toxin
Interact With
Induction
Subcellular Location SUBCELLULAR LOCATION: Secreted {ECO:0000250}.
Modified Residue
Post Translational Modification
Signal Peptide SIGNAL 1..21; /evidence=ECO:0000255
Structure 3D
Cross Reference PDB -
Mapped Pubmed ID -
Motif
Gene Encoded By
Mass 9,855
Kinetics
Metal Binding
Rhea ID
Cross Reference Brenda