Detail Information for IndEnz0010001517
IED ID IndEnz0010001517
Enzyme Type ID esterase001517
Protein Name Thrombin-like enzyme LMR-47
SVTLE LM-47
SVTLE LMR-47
EC 3.4.21.74
Fibrinogen-clotting enzyme
Gyroxin analog
Snake venom serine protease
SVSP
Venombin A
Fragment
Gene Name
Organism Lachesis muta rhombeata (Bushmaster)
Taxonomic Lineage cellular organisms Eukaryota Opisthokonta Metazoa Eumetazoa Bilateria Deuterostomia Chordata Craniata Vertebrata Gnathostomata (jawed vertebrates) Teleostomi Euteleostomi Sarcopterygii Dipnotetrapodomorpha Tetrapoda Amniota Sauropsida Sauria (diapsids) Lepidosauria (lepidosaurs) Squamata (squamates) Bifurcata (split-tongued squamates) Unidentata Episquamata Toxicofera Serpentes (snakes) Colubroidea Viperidae Crotalinae (pit vipers) Lachesis Lachesis muta (South American bushmaster) Lachesis muta rhombeata (Bushmaster)
Enzyme Sequence VIGGDECNINEHRFLVALYDGLSGTFLCGG
Enzyme Length 30
Uniprot Accession Number Q9PRP4
Absorption
Active Site
Activity Regulation ACTIVITY REGULATION: Inactivated by antipain, PMSF, TPCK, leupeptin, pepstatin, EDTA, and E-64 (trans-epoxysuccinylleucylamido(4-guanidino)butane).
Binding Site
Calcium Binding
catalytic Activity CATALYTIC ACTIVITY: Reaction=Selective cleavage of Arg-|-Xaa bond in fibrinogen, to form fibrin, and release fibrinopeptide A. The specificity of further degradation of fibrinogen varies with species origin of the enzyme.; EC=3.4.21.74;
DNA Binding
EC Number 3.4.21.74
Enzyme Function FUNCTION: Thrombin-like snake venom serine protease that specifically hydrolyzes the Aalpha chain of fibrinogen (FGA). Exhibits strong N-p-tosyl-L-arginine methyl esterase activity, and hydrolyzes tripeptide nitroanilide derivatives weakly or not at all.
Temperature Dependency
PH Dependency
Pathway
nucleotide Binding
Features Chain (1); Domain (1); Non-terminal residue (1)
Keywords Blood coagulation cascade activating toxin;Direct protein sequencing;Fibrinogenolytic toxin;Glycoprotein;Hemostasis impairing toxin;Hydrolase;Protease;Secreted;Serine protease;Toxin
Interact With
Induction
Subcellular Location SUBCELLULAR LOCATION: Secreted.
Modified Residue
Post Translational Modification PTM: Glycosylated. {ECO:0000269|PubMed:8783450}.
Signal Peptide
Structure 3D
Cross Reference PDB -
Mapped Pubmed ID -
Motif
Gene Encoded By
Mass 3,171
Kinetics BIOPHYSICOCHEMICAL PROPERTIES: Kinetic parameters: KM=12 uM for N-p-tosyl-L-arginine methyl ester (TAME) {ECO:0000269|PubMed:8783450}; KM=589 uM for NBz-Pro-Phe-Arg-pNA {ECO:0000269|PubMed:8783450}; KM=1320 uM for NBz-Val-Gly-Arg-pNA {ECO:0000269|PubMed:8783450}; KM=857 uM for NBz-DL-Arg-pNA {ECO:0000269|PubMed:8783450}; Vmax=877.0 nmol/sec/mg enzyme for N-p-tosyl-L-arginine methyl ester (TAME) {ECO:0000269|PubMed:8783450}; Vmax=51.0 nmol/sec/mg enzyme for NBz-Pro-Phe-Arg-pNA {ECO:0000269|PubMed:8783450}; Vmax=75.0 nmol/sec/mg enzyme for NBz-Val-Gly-Arg-pNA {ECO:0000269|PubMed:8783450}; Vmax=39.3 nmol/sec/mg enzyme for NBz-DL-Arg-pNA {ECO:0000269|PubMed:8783450};
Metal Binding
Rhea ID
Cross Reference Brenda