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UniProtKB - P01523 (CM3A_CONGE)

Entry version 119 (29 Sep 2021)
Sequence version 3 (11 Dec 2019)
Previous versions | rss
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Protein

Mu-conotoxin GIIIA

Gene
N/A
Organism
Conus geographus (Geography cone) (Nubecula geographus)
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

Mu-conotoxins block voltage-gated sodium channels (Nav). This toxin potently blocks rat Nav1.4/SCN4A (IC50= 19-110 nM) (PubMed:1654319, PubMed:1326324, PubMed:10627583, PubMed:21652775, PubMed:30360356).

It also moderately blocks rNav1.1/SCN1A (Kd=260 nM), rNav1.2/SCN2A (IC50=2.7-17.8 µM), and mNav1.6/SCN8A (IC50=680 nM) (PubMed:10627583, PubMed:21652775).

The inhibition is reversible. In vivo, induces paralysis to an isolated skeletal muscle preparation from frog (cutaneous pectoralis) within a few minutes (PubMed:2410412).

5 Publications

Miscellaneous

This toxin does not or only weakly blocks rNav1.3/SCN3A, rNav1.5/SCN5A, rNav1.7/SCN9A (IC50=6.0 µM and >100 µM), and rNav1.8/SCN10A (PubMed:10627583, PubMed:21652775).2 Publications

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>Sitei64Important for binding sodium channel1

<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

Complete GO annotation on QuickGO ...

<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 functionIon channel impairing toxin, Neurotoxin, Toxin, Voltage-gated sodium channel impairing toxin

Protein family/group databases

Transport Classification Database

More...TCDBi		8.B.28.1.3, the mu-conotoxin (mu-conotoxin) family

<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:
Mu-conotoxin GIIIA2 Publications
Alternative name(s):
G3.91 Publication
Geographutoxin I2 Publications
Short name:
GTx-I2 Publications
Myotoxin I
<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>OrganismiConus geographus (Geography cone) (Nubecula geographus)
<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 identifieri6491 [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 lineageiEukaryota › Metazoa › Spiralia › Lophotrochozoa › Mollusca › Gastropoda › Caenogastropoda › Neogastropoda › Conoidea › Conidae › Conus › Gastridium

Organism-specific databases

ConoServer: Cone snail toxin database

More...ConoServeri		1570, GIIIA [R13A]
1464, GIIIA precursor

<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

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>Mutagenesisi52R → A: 5-fold decrease in activity on Nav channels (probably Nav1.4/SCN4A) from rat diaphragm. 1 Publication1
Mutagenesisi53D → A: 2-fold decrease in activity on Nav channels (probably Nav1.4/SCN4A) from rat diaphragm. 1 Publication1
Mutagenesisi53D → N: Increase in activity on Nav channel from eel electric membranes, and decrease in binding to rat Nav1.4/SCN4A by increasing the rate of dissociation from rat Nav1.4/SCN4A channel and decreasing the rate of association. 1 Publication1
Mutagenesisi59K → Q: Important decrease in activity on Nav channel from eel electric membranes, and decrease in binding to rat Nav1.4/SCN4A by increasing the rate of dissociation from rat Nav1.4/SCN4A channel and potently decreasing the rate of association. 1 Publication1
Mutagenesisi63D → A: 3.5-fold decrease in activity on Nav channels (probably Nav1.4/SCN4A) from rat diaphragm. 1 Publication1
Mutagenesisi64R → A: 200-fold decrease in activity on Nav channels (probably Nav1.4/SCN4A) from rat diaphragm. 1 Publication1
Mutagenesisi64R → Q: Loss of activity on Nav channel from eel electric membranes, and important decrease in binding to rat Nav1.4/SCN4A by increasing the rate of dissociation from rat Nav1.4/SCN4A channel without modifying the rate of association. 1 Publication1
Mutagenesisi69Q → K: Increase in activity on Nav channel from eel electric membranes, and important increase in binding to rat Nav1.4/SCN4A (seemingly irreversible) by potently decreasing the rates of both dissociation and association to rat Nav1.4/SCN4A channel. 1 Publication1
Mutagenesisi70R → A: 25-fold decrease in activity on Nav channels (probably Nav1.4/SCN4A) from rat diaphragm. 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 – 20Sequence analysisAdd BLAST20
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM / Processing</a> section describes a propeptide, which is a part of a protein that is cleaved during maturation or activation. Once cleaved, a propeptide generally has no independent biological function.<p><a href='/help/propep' target='_top'>More...</a></p>PropeptideiPRO_000024600421 – 512 PublicationsAdd BLAST31
<p>This subsection of the 'PTM / Processing' section describes the position and length of an active peptide in the mature protein.<p><a href='/help/peptide' target='_top'>More...</a></p>PeptideiPRO_000004449352 – 73Mu-conotoxin GIIIA2 PublicationsAdd BLAST22

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 bondi54 ↔ 664 PublicationsImported
Disulfide bondi55 ↔ 714 PublicationsImported
<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 residuei574-hydroxyproline; partial3 Publications1
Modified residuei584-hydroxyproline; partial3 Publications1
Disulfide bondi61 ↔ 724 PublicationsImported
Modified residuei684-hydroxyproline3 Publications1
Modified residuei73Alanine amide3 Publications1

<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

Hydroxylated; hydroxylations improve the ability to block Nav1.4/SCN4A sodium channels but does not affect folding.2 Publications

Keywords - PTMi

Amidation, Cleavage on pair of basic residues, Disulfide bond, Hydroxylation

Proteomic databases

PRoteomics IDEntifications database

More...PRIDEi		P01523

<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 duct.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

175
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

More...SMRi		P01523

Database of comparative protein structure models

More...ModBasei		Search...

Protein Data Bank in Europe - Knowledge Base

More...PDBe-KBi		Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...EvolutionaryTracei		P01523

<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

<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

The cysteine framework is III (CC-C-C-CC). Classified in the M-4 branch, since 4 residues stand between the fourth and the fifth cysteine residues.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

Belongs to the conotoxin M superfamily.Curated

Keywords - Domaini

Signal

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR004214, Conotoxin
IPR008036, Conotoxin_mu-typ

Pfam protein domain database

More...Pfami		View protein in Pfam
PF02950, Conotoxin, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS60013, MU_CONOTOXIN, 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.

P01523-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MMSKLGVLLT ICLLLFPLTA LPMDGDEPAN RPVERMQDNI SSEQYPLFEK 
        60         70 
RRDCCTPPKK CKDRQCKPQR CCAGR
Length:75
Mass (Da):8,586
Last modified:December 11, 2019 - v3
<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:i94CC673FA5DC1283
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...EMBLi

GenBank nucleotide sequence database

More...GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...DDBJi
Links Updated
AB910835 mRNA Translation: BAO65603.1

Protein sequence database of the Protein Information Resource

More...PIRi		A01786, MXKN1

<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
AB910835 mRNA Translation: BAO65603.1
PIRiA01786, MXKN1

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...PDBei

Protein Data Bank RCSB

More...RCSB PDBi

Protein Data Bank Japan

More...PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1TCGNMR-A52-73[»]
1TCHNMR-A52-73[»]
1TCJNMR-A52-73[»]
1TCKNMR-A52-73[»]
SMRiP01523
ModBaseiSearch...
PDBe-KBiSearch...

Protein family/group databases

TCDBi8.B.28.1.3, the mu-conotoxin (mu-conotoxin) family

Proteomic databases

PRIDEiP01523

Organism-specific databases

ConoServeri1570, GIIIA [R13A]
1464, GIIIA precursor

Miscellaneous databases

EvolutionaryTraceiP01523

Family and domain databases

InterProiView protein in InterPro
IPR004214, Conotoxin
IPR008036, Conotoxin_mu-typ
PfamiView protein in Pfam
PF02950, Conotoxin, 1 hit
PROSITEiView protein in PROSITE
PS60013, MU_CONOTOXIN, 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 nameiCM3A_CONGE
<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: P01523
Secondary accession number(s): X5IG12
<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: July 21, 1986
Last sequence update: December 11, 2019
Last modified: September 29, 2021
This is version 119 of the entry and version 3 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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