SL9B1_TRIST
ID SL9B1_TRIST Reviewed; 144 AA.
AC Q71RR2;
DT 16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT 05-JUL-2004, sequence version 1.
DT 25-MAY-2022, entry version 58.
DE RecName: Full=Snaclec coagulation factor IX/factor X-binding protein subunit B1;
DE Short=IX/X-bp subunit B1;
DE Flags: Precursor;
OS Trimeresurus stejnegeri (Chinese green tree viper) (Viridovipera
OS stejnegeri).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Lepidosauria; Squamata; Bifurcata; Unidentata; Episquamata; Toxicofera;
OC Serpentes; Colubroidea; Viperidae; Crotalinae; Trimeresurus.
OX NCBI_TaxID=39682;
RN [1]
RP NUCLEOTIDE SEQUENCE [MRNA].
RC TISSUE=Venom gland;
RA Lee W.-H., Liu H., Zhang Y.;
RT "Cloning and characterization of C-type lectins from Trimeresurus
RT stejnegeri venom.";
RL Submitted (MAR-2001) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Anticoagulant protein which binds to the gamma-
CC carboxyglutamic acid-domain regions of factors IX (F9) and factor X
CC (F10) in the presence of calcium with a 1 to 1 stoichiometry.
CC {ECO:0000250}.
CC -!- SUBUNIT: Heterodimer of subunits A and B1; disulfide-linked.
CC {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Secreted {ECO:0000250}.
CC -!- TISSUE SPECIFICITY: Expressed by the venom gland.
CC -!- MISCELLANEOUS: Calcium is required for ligand binding. {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the snaclec family. {ECO:0000305}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; AF354912; AAQ15154.1; -; mRNA.
DR EMBL; AF354913; AAQ15155.1; -; mRNA.
DR AlphaFoldDB; Q71RR2; -.
DR SMR; Q71RR2; -.
DR GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0090729; F:toxin activity; IEA:UniProtKB-KW.
DR Gene3D; 3.10.100.10; -; 1.
DR InterPro; IPR001304; C-type_lectin-like.
DR InterPro; IPR016186; C-type_lectin-like/link_sf.
DR InterPro; IPR018378; C-type_lectin_CS.
DR InterPro; IPR016187; CTDL_fold.
DR Pfam; PF00059; Lectin_C; 1.
DR SMART; SM00034; CLECT; 1.
DR SUPFAM; SSF56436; SSF56436; 1.
DR PROSITE; PS00615; C_TYPE_LECTIN_1; 1.
DR PROSITE; PS50041; C_TYPE_LECTIN_2; 1.
PE 2: Evidence at transcript level;
KW Blood coagulation cascade inhibiting toxin; Calcium; Disulfide bond;
KW Hemostasis impairing toxin; Metal-binding; Secreted; Signal; Toxin.
FT SIGNAL 1..23
FT /evidence="ECO:0000250"
FT CHAIN 24..144
FT /note="Snaclec coagulation factor IX/factor X-binding
FT protein subunit B1"
FT /id="PRO_0000356314"
FT DOMAIN 32..143
FT /note="C-type lectin"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00040"
FT DISULFID 25..36
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00040"
FT DISULFID 53..142
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00040"
FT DISULFID 98
FT /note="Interchain (with C-102 in subunit A)"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00040"
FT DISULFID 119..134
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00040"
SQ SEQUENCE 144 AA; 16709 MW; 2FDC57E5B12BBBA8 CRC64;
MGRFIFVSFG LLVVFLSLSG TAADCLSGWS SYEGHCYKPF NELKNWADAE NFCTQQQAGG
HLVSFQSSEE ADFVVKLAFQ TFDHSIFWMG LSNVWNQCNW QWSNAAMLRY KAWAEESYCV
YFKSTNNKWR SRSCRMMANF VCEF