ID   VSP2_PROFL              Reviewed;         260 AA.
AC   O13057;
DT   04-MAY-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-JUL-1997, sequence version 1.
DT   03-AUG-2022, entry version 94.
DE   RecName: Full=Snake venom serine protease 2;
DE            Short=SVSP 2;
DE            EC=3.4.21.-;
DE   Flags: Precursor;
GN   Name=TLF2;
OS   Protobothrops flavoviridis (Habu) (Trimeresurus flavoviridis).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Lepidosauria; Squamata; Bifurcata; Unidentata; Episquamata; Toxicofera;
OC   Serpentes; Colubroidea; Viperidae; Crotalinae; Protobothrops.
OX   NCBI_TaxID=88087;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RC   TISSUE=Venom gland;
RX   PubMed=8941719; DOI=10.1016/s0014-5793(96)01144-1;
RA   Deshimaru M., Ogawa T., Nakashima K., Nobuhisa I., Chijiwa T.,
RA   Shimohigashi Y., Fukumaki Y., Niwa M., Yamashina I., Hattori S., Ohno M.;
RT   "Accelerated evolution of crotalinae snake venom gland serine proteases.";
RL   FEBS Lett. 397:83-88(1996).
CC   -!- FUNCTION: Snake venom serine protease that may act in the hemostasis
CC       system of the prey. {ECO:0000250}.
CC   -!- SUBUNIT: Monomer. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Secreted {ECO:0000250}.
CC   -!- TISSUE SPECIFICITY: Expressed by the venom gland.
CC   -!- SIMILARITY: Belongs to the peptidase S1 family. Snake venom subfamily.
CC       {ECO:0000255|PROSITE-ProRule:PRU00274}.
CC   -!- CAUTION: Arg-67 is present instead of the conserved His which is
CC       expected to be an active site residue. {ECO:0000305}.
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DR   EMBL; D67079; BAA19977.1; -; mRNA.
DR   AlphaFoldDB; O13057; -.
DR   SMR; O13057; -.
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   CDD; cd00190; Tryp_SPc; 1.
DR   Gene3D; 2.40.10.10; -; 2.
DR   InterPro; IPR009003; Peptidase_S1_PA.
DR   InterPro; IPR043504; Peptidase_S1_PA_chymotrypsin.
DR   InterPro; IPR001314; Peptidase_S1A.
DR   InterPro; IPR001254; Trypsin_dom.
DR   Pfam; PF00089; Trypsin; 1.
DR   PRINTS; PR00722; CHYMOTRYPSIN.
DR   SMART; SM00020; Tryp_SPc; 1.
DR   SUPFAM; SSF50494; SSF50494; 1.
DR   PROSITE; PS50240; TRYPSIN_DOM; 1.
PE   2: Evidence at transcript level;
KW   Disulfide bond; Glycoprotein; Hemostasis impairing toxin; Hydrolase;
KW   Protease; Secreted; Serine protease; Signal; Toxin; Zymogen.
FT   SIGNAL          1..18
FT                   /evidence="ECO:0000250"
FT   PROPEP          19..24
FT                   /evidence="ECO:0000250"
FT                   /id="PRO_0000028387"
FT   CHAIN           25..260
FT                   /note="Snake venom serine protease 2"
FT                   /id="PRO_0000028388"
FT   DOMAIN          25..251
FT                   /note="Peptidase S1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00274"
FT   CARBOHYD        123
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        124
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   DISULFID        31..165
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00274"
FT   DISULFID        52..68
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00274"
FT   DISULFID        100..258
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00274"
FT   DISULFID        144..212
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00274"
FT   DISULFID        176..191
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00274"
FT   DISULFID        202..227
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00274"
SQ   SEQUENCE   260 AA;  28641 MW;  D0D0A5394CBF9B4A CRC64;
     MVLIRVLANL LILQLFYAQK SSELIIGGDE CNINEHRFLV ALYTFRSRRL HCGGILINQE
     WVLSAARCNR KNIRIQLGMH STNVINEDVQ TRVPKEKFFC LSSKTHTRWN KDIMLIRLNS
     PVNNSTHIAP VSLPSNPPSL GSVCRVMGWG TISATKETHP DVPHCANINI LDYSVCRAAY
     ARLPATSRTL CAGILEGGKD SCKADSGGPL ICNGEIQGIV SRGGHSCGQP RKPGLYTKVF
     DHLDWIKSII AGNKDAICPP