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Entry version 119 (02 Jun 2021)
Sequence version 2 (01 Jul 1993)
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Protein

Beta-mammal/insect toxin Ts1

Gene
N/A
Organism
Tityus serrulatus (Brazilian scorpion)
Status
Reviewed-Annotation score:

Annotation score:5 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Voltage-gated sodium channels (Nav) gating-modifier. Acts both as alpha- and beta-toxin, since it affects not only activation but also inactivation of Nav channels (PubMed:25862296) (Probable).

Binds to Nav domain DII and impairs the four Nav channel voltage sensors movements (PubMed:17698594, PubMed:19005548).

Depending on Nav channel subtypes tested, can also bind Nav domains DIII (low affinity) and DIV (very low affinity) (PubMed:17698594, PubMed:19005548, PubMed:25624450).

Acts on almost all the Nav channels tested (mammalian Nav1.2/SCN2A, Nav1.3/SCN3A, Nav1.4/SCN4A, Nav1.5/SCN5A, Nav1.6/SCN8A, Nav1.9/SCN11A, and insect DmNav1) (PubMed:9048656, PubMed:17698594, PubMed:21670206, PubMed:24989851, PubMed:25862296, PubMed:31012002).

Is highly active against both mammals and insects (PubMed:17118417, PubMed:21549737).

Irreversibly modulates DmNav channels (PubMed:25862296).

Other Ts1 activities have been studied, such as immunomodulation, antimicrobial activity or exocrine secretion (Probable). This toxin exhibits an antifungal activity against filamentous fungi (PubMed:28634472).

In vitro, it has an important immunomodulatory effect on macrophages by stimulating the release of proinflammatory cytokines (PubMed:21549737).

It also shows an activity in exocrine secretion in pancreas, stomach and adrenal gland (PubMed:1993690, PubMed:9611141, PubMed:10347806).

Curated14 Publications

Miscellaneous

Is the main neurotoxin of the venom of T.serrulatus.
Does not show activity on Nav1.1/SCN1A, Nav1.7/SCN9A, Nav1.8/SCN10A and the bacterial NaChBac.1 Publication2 Publications

Caution

The 'mutant' Ts1-G was isolated from the venom before the last step maturation (i.e. amidation) thanks to a right purification technique (PubMed:24560880). It is indicated here as a mutant, since it does not correspond to the mature toxin.1 Publication

<p>This subsection of the 'Function' section describes biophysical and chemical properties, such as maximal absorption, kinetic parameters, pH dependence, redox potentials and temperature dependence.<p><a href='/help/biophysicochemical_properties' target='_top'>More...</a></p>pH dependencei

Optimum pH is 4.5-7.5. Is almost completely inactivated at pH 11.5.1 Publication

Temperature dependencei

Optimum temperature is 25-60 degrees Celsius. All temperatures tested are optimal.1 Publication

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection describes interesting single amino acid sites on the sequence that are not defined in any other subsection. This subsection can be displayed in different sections ('Function', 'PTM / Processing', 'Pathology and Biotech') according to its content.<p><a href='/help/site' target='_top'>More...</a></p>Sitei32important for activity1 Publication1
Sitei59important for activity1 Publication1
Sitei74important for activity1 Publication1

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionAntimicrobial, Fungicide, Ion channel impairing toxin, Neurotoxin, Toxin, Voltage-gated sodium channel impairing toxin

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Beta-mammal/insect toxin Ts13 Publications
Alternative name(s):
Beta-like toxin Ts1
PT-Mice-Ins-beta NaTx6.11 Publication
Tityustoxin VII1 Publication
Short name:
Toxin VII3 Publications
Short name:
Ts VII3 Publications
Short name:
Ts71 Publication
Short name:
TsTX-VII2 Publications
Toxin II-112 Publications
Toxin III-101 Publication
Toxin T2-IV2 Publications
Toxin gamma6 Publications
Short name:
T-gamma1 Publication
Short name:
TiTx gamma1 Publication
Short name:
Toxin-g1 Publication
TsTX-I1 Publication
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiTityus serrulatus (Brazilian scorpion)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri6887 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryotaMetazoaEcdysozoaArthropodaChelicerataArachnidaScorpionesButhidaButhoideaButhidaeTityus

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Keywords - Cellular componenti

Secreted

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology%5Fand%5Fbiotech%5Fsection">'Pathology and Biotech'</a> section describes the lethal dose (LD), paralytic dose (PD), effect dose (ED) or lethal concentration (LC) of a protein toxin.<p><a href='/help/toxic_dose' target='_top'>More...</a></p>Toxic dosei

LD50 is 4.7 µg by subcutaneous injection into mice (235 µg/kg).1 Publication
LD50 is 826 +/- 156 µg/kg by intravenous injection into mice.1 Publication
LD50 is 11 +/- 9 µg/kg by intracistenal injection into mice.1 Publication
LD50 is 0.6 ng by intracerebroventricular injection into mice (30 ng/kg).1 Publication1 Publication
LD50 is 1.7 ng by intracerebroventricular injection into mice (85 ng/kg).1 Publication

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology%5Fand%5Fbiotech%5Fsection">'Pathology and Biotech'</a> section describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.<p><a href='/help/mutagen' target='_top'>More...</a></p>Mutagenesisi21 – 26Missing : Loss of toxicity to mice. 1 Publication6
Mutagenesisi81C → CG: Decrease of affinity of this non amidated toxin (Ts1-G) for sodium channel. 1 Publication1

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section denotes the presence of an N-terminal signal peptide.<p><a href='/help/signal' target='_top'>More...</a></p>Signal peptidei1 – 205 PublicationsAdd BLAST20
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_000003530521 – 81Beta-mammal/insect toxin Ts12 PublicationsAdd BLAST61

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the PTM / Processing":/help/ptm_processing_section section describes the positions of cysteine residues participating in disulfide bonds.<p><a href='/help/disulfid' target='_top'>More...</a></p>Disulfide bondi31 ↔ 81Combined sources2 Publications
Disulfide bondi35 ↔ 57Combined sources2 Publications
Disulfide bondi43 ↔ 62Combined sources2 Publications
Disulfide bondi47 ↔ 64Combined sources2 Publications
<p>This subsection of the 'PTM / Processing' section specifies the position and type of each modified residue excluding <a href="http://www.uniprot.org/manual/lipid">lipids</a>, <a href="http://www.uniprot.org/manual/carbohyd">glycans</a> and <a href="http://www.uniprot.org/manual/crosslnk">protein cross-links</a>.<p><a href='/help/mod_res' target='_top'>More...</a></p>Modified residuei81Cysteine amide1 Publication1

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationi

C-terminal amidation is important for high activity.2 Publications

Keywords - PTMi

Amidation, Disulfide bond

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the 'Expression' section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified 'at protein level'.<br></br>Examples: <a href="http://www.uniprot.org/uniprot/P92958#expression">P92958</a>, <a href="http://www.uniprot.org/uniprot/Q8TDN4#expression">Q8TDN4</a>, <a href="http://www.uniprot.org/uniprot/O14734#expression">O14734</a><p><a href='/help/tissue_specificity' target='_top'>More...</a></p>Tissue specificityi

Expressed by the venom gland.1 Publication

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

Secondary structure

184
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

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SMRi
P15226

Database of comparative protein structure models

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ModBasei
Search...

Protein Data Bank in Europe - Knowledge Base

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PDBe-KBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
P15226

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family%5Fand%5Fdomains%5Fsection">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini21 – 82LCN-type CS-alpha/betaPROSITE-ProRule annotationAdd BLAST62

<p>This subsection of the 'Family and domains' section provides general information on the biological role of a domain. The term 'domain' is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

Has the structural arrangement of an alpha-helix connected to antiparallel beta-sheets by disulfide bonds (CS-alpha/beta).Curated

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Keywords - Domaini

Signal

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.30.30.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR044062, LCN-type_CS_alpha_beta_dom
IPR003614, Scorpion_toxin-like
IPR036574, Scorpion_toxin-like_sf
IPR018218, Scorpion_toxinL
IPR002061, Scorpion_toxinL/defensin

Pfam protein domain database

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Pfami
View protein in Pfam
PF00537, Toxin_3, 1 hit

Protein Motif fingerprint database; a protein domain database

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PRINTSi
PR00285, SCORPNTOXIN

Simple Modular Architecture Research Tool; a protein domain database

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SMARTi
View protein in SMART
SM00505, Knot1, 1 hit

Superfamily database of structural and functional annotation

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SUPFAMi
SSF57095, SSF57095, 1 hit

PROSITE; a protein domain and family database

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PROSITEi
View protein in PROSITE
PS51863, LCN_CSAB, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

P15226-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKGMILFISC LLLIGIVVEC KEGYLMDHEG CKLSCFIRPS GYCGRECGIK
60 70 80
KGSSGYCAWP ACYCYGLPNW VKVWDRATNK CGKK
Length:84
Mass (Da):9,382
Last modified:July 1, 1993 - v2
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i430F3FCA74823E77
GO

<p>This subsection of the 'Sequence' section reports information derived from mass spectrometry experiments done on the entire protein or on biologically active derived peptide(s).<p><a href='/help/mass_spectrometry' target='_top'>More...</a></p>Mass spectrometryi

Molecular mass is 6879.4 Da. Determined by MALDI. 1 Publication

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

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EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
X66256 mRNA Translation: CAA46982.1
S66941 Genomic DNA Translation: AAB29128.1

Protein sequence database of the Protein Information Resource

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PIRi
S21158

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X66256 mRNA Translation: CAA46982.1
S66941 Genomic DNA Translation: AAB29128.1
PIRiS21158

3D structure databases

Select the link destinations:

Protein Data Bank Europe

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PDBei

Protein Data Bank RCSB

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RCSB PDBi

Protein Data Bank Japan

More...
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1B7DX-ray1.73A21-81[»]
1NPIX-ray1.16A21-81[»]
SMRiP15226
ModBaseiSearch...
PDBe-KBiSearch...

Miscellaneous databases

EvolutionaryTraceiP15226

Family and domain databases

Gene3Di3.30.30.10, 1 hit
InterProiView protein in InterPro
IPR044062, LCN-type_CS_alpha_beta_dom
IPR003614, Scorpion_toxin-like
IPR036574, Scorpion_toxin-like_sf
IPR018218, Scorpion_toxinL
IPR002061, Scorpion_toxinL/defensin
PfamiView protein in Pfam
PF00537, Toxin_3, 1 hit
PRINTSiPR00285, SCORPNTOXIN
SMARTiView protein in SMART
SM00505, Knot1, 1 hit
SUPFAMiSSF57095, SSF57095, 1 hit
PROSITEiView protein in PROSITE
PS51863, LCN_CSAB, 1 hit

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiSCX1_TITSE
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: P15226
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 1, 1990
Last sequence update: July 1, 1993
Last modified: June 2, 2021
This is version 119 of the entry and version 2 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programAnimal Toxin Annotation Program

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

3D-structure, Direct protein sequencing

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families
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