VSP1_BOTAN
ID VSP1_BOTAN Reviewed; 119 AA.
AC P0DJG3;
DT 18-APR-2012, integrated into UniProtKB/Swiss-Prot.
DT 18-APR-2012, sequence version 1.
DT 03-AUG-2022, entry version 26.
DE RecName: Full=Thrombin-like enzyme TLBan;
DE Short=SVTLE TLBan;
DE EC=3.4.21.-;
DE AltName: Full=Fibrinogen-clotting enzyme;
DE AltName: Full=Snake venom serine protease;
DE Short=SVSP;
DE Flags: Fragments;
OS Bothrocophias andianus (Andean lancehead) (Bothrops andianus).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Lepidosauria; Squamata; Bifurcata; Unidentata; Episquamata; Toxicofera;
OC Serpentes; Colubroidea; Viperidae; Crotalinae; Bothrocophias.
OX NCBI_TaxID=1144373;
RN [1]
RP PROTEIN SEQUENCE, FUNCTION, ACTIVITY REGULATION, BIOPHYSICOCHEMICAL
RP PROPERTIES, SUBUNIT, GLYCOSYLATION, SIALIC ACID, AND MASS SPECTROMETRY.
RC TISSUE=Venom;
RX PubMed=22155303; DOI=10.1016/j.toxicon.2011.11.018;
RA Valeriano-Zapana J.A., Segovia-Cruz F.S., Rojas-Hualpa J.M.,
RA Martins-de-Souza D., Ponce-Soto L.A., Marangoni S.;
RT "Functional and structural characterization of a new serine protease with
RT thrombin-like activity TLBan from Bothrops andianus (Andean Lancehead)
RT snake venom.";
RL Toxicon 59:231-240(2012).
CC -!- FUNCTION: Thrombin-like snake venom serine protease, with high clotting
CC activity in vitro. Has also fibrinogenolytic ability, showing a fast
CC degradation of fibrinogen Aalpha chain (FGA), a slow degradation of
CC Bbeta chain (FGB) and no degradation of gamma chain. Also causes
CC platelet aggregation in platelet rich plasma (PRP) and washed platelet
CC suspension. {ECO:0000269|PubMed:22155303}.
CC -!- ACTIVITY REGULATION: Strongly inhibited by PMSF and slightly inhibited
CC by EDTA and soybean trypsin inhibitor. {ECO:0000269|PubMed:22155303}.
CC -!- BIOPHYSICOCHEMICAL PROPERTIES:
CC Kinetic parameters:
CC KM=0.79 M for N-alpha-benzoyl-DL-Arg-p-nitroanilide (DL-BApNA)
CC {ECO:0000269|PubMed:22155303};
CC Vmax=0.54 nmol/min/mg enzyme with N-alpha-benzoyl-DL-Arg-p-
CC nitroanilide (DL-BApNA) as substrate {ECO:0000269|PubMed:22155303};
CC pH dependence:
CC Optimum pH is 8.0. {ECO:0000269|PubMed:22155303};
CC Temperature dependence:
CC Optimum temperature is 45 degrees Celsius.
CC {ECO:0000269|PubMed:22155303};
CC -!- SUBUNIT: Monomer. {ECO:0000269|PubMed:22155303}.
CC -!- SUBCELLULAR LOCATION: Secreted.
CC -!- TISSUE SPECIFICITY: Expressed by the venom gland.
CC -!- PTM: Contains both N-linked carbohydrates and sialic acid.
CC {ECO:0000269|PubMed:22155303}.
CC -!- MASS SPECTROMETRY: Mass=25835.65; Method=MALDI;
CC Evidence={ECO:0000269|PubMed:22155303};
CC -!- SIMILARITY: Belongs to the peptidase S1 family. Snake venom subfamily.
CC {ECO:0000255|PROSITE-ProRule:PRU00274}.
CC -!- CAUTION: Ile, Leu, Gln and Lys residues were impossible to discriminate
CC with the method employed and are all assigned by comparison with
CC orthologs. {ECO:0000305}.
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DR AlphaFoldDB; P0DJG3; -.
DR SMR; P0DJG3; -.
DR GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR GO; GO:0004252; F:serine-type endopeptidase activity; IEA:InterPro.
DR GO; GO:0090729; F:toxin activity; IEA:UniProtKB-KW.
DR GO; GO:0006508; P:proteolysis; IEA:UniProtKB-KW.
DR Gene3D; 2.40.10.10; -; 2.
DR InterPro; IPR001357; BRCT_dom.
DR InterPro; IPR009003; Peptidase_S1_PA.
DR InterPro; IPR043504; Peptidase_S1_PA_chymotrypsin.
DR InterPro; IPR001254; Trypsin_dom.
DR Pfam; PF00089; Trypsin; 1.
DR SMART; SM00020; Tryp_SPc; 1.
DR SUPFAM; SSF50494; SSF50494; 1.
DR PROSITE; PS50240; TRYPSIN_DOM; 1.
PE 1: Evidence at protein level;
KW Blood coagulation cascade activating toxin; Direct protein sequencing;
KW Disulfide bond; Fibrinogenolytic toxin; Glycoprotein;
KW Hemostasis impairing toxin; Hydrolase;
KW Platelet aggregation activating toxin; Protease; Secreted; Serine protease;
KW Sialic acid; Toxin.
FT CHAIN 1..119
FT /note="Thrombin-like enzyme TLBan"
FT /id="PRO_0000416596"
FT DOMAIN 1..112
FT /note="Peptidase S1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00274"
FT ACT_SITE 40
FT /note="Charge relay system"
FT /evidence="ECO:0000250"
FT ACT_SITE 59
FT /note="Charge relay system"
FT /evidence="ECO:0000250"
FT DISULFID 7..?
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00274"
FT DISULFID 25..?
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00274"
FT DISULFID 54..118
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00274"
FT DISULFID 91..?
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00274"
FT NON_CONS 21..22
FT /evidence="ECO:0000305"
FT NON_CONS 40..41
FT /evidence="ECO:0000305"
FT NON_CONS 58..59
FT /evidence="ECO:0000305"
FT NON_CONS 93..94
FT /evidence="ECO:0000305"
SQ SEQUENCE 119 AA; 13356 MW; C040280888C2EA1F CRC64;
VIGGDECNIN EHPFLVALYY STFFCGMTLI NQEWVLTAAH ESEKFPKEKY FIFCPNNKDI
MLIRLDKPVS NSEHIAPLSL PSSPPSVGSV CRKPALYTKV FDYLLWIQSI IAGNTATCP