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UniProtKB - X5IWS1 (O17J_CONGE)

Entry version 20 (10 Oct 2018)
Sequence version 2 (15 Feb 2017)
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Protein

Mu-conotoxin GVIIJ

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 (GVIIJ(SSG)) blocks Nav1.1/SCN1A (Kd=11 nM), Nav1.2/SCN2A (Kd=11 nM), Nav1.3/SCN3A (Kd=15 nM), Nav1.4/SCN4A (Kd=4.7 nM), Nav1.6/SCN8A (Kd=360 nM) and Nav1.7/SCN9A (Kd=41 nM) (PubMed:24497506, PubMed:26039939). It binds the channel at the newly described site 8, which is composed by two surfaces whose one contains a non-disulfide-bonded cysteine (which is free to covalently bind the toxin Cys-71) (PubMed:24497506). It is noteworthy that coexpression of subunits beta-2 or beta-4 (but not beta-1 or beta-3) protects rNav1.1-1.7 against block by the toxin, since these subunits (thanks to their extracellular domain) covalently bind to the key cysteine of the channel, thus preventing the covalent binding of the toxin (PubMed:24497506, PubMed:25632083).4 Publications

Miscellaneous

This toxin shows a very low affinity to Nav1.5/SCN5A (Kd=207 µM) and does not show activity on rNav1.8/SCN10A.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>Sitei59Functionally important residue, that binds to the site 8 of the channel1 Publication1
Sitei61Functionally important residue, that binds to the site 8 of the channel1 Publication1
Sitei63Functionally important residue, that binds to the site 8 of the channel1 Publication1
Sitei71Functionally important residue, that binds to the site 8 of the channel (distinct surface that K-59; R-61 and Y-63)1 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

View the 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, 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_and_taxonomy_section">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 GVIIJ1 Publication
Alternative name(s):
Conotoxin muO-GVIIJ1 Publication
MuO'section sign'-GVIIJ1 Publication
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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_and_taxonomy_section">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_and_taxonomy_section">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 › Lophotrochozoa › Mollusca › Gastropoda › Caenogastropoda › Neogastropoda › Conoidea › Conidae › Conus › Gastridium

<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

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

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_and_biotech_section">'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>Mutagenesisi49W → A: 10-fold decrease of affinity to Nav1.2/SCNA2. 1 Publication1
Mutagenesisi52D → K: No change in affinity to Nav1.2/SCNA2. 1 Publication1
Mutagenesisi53P → A: No change in affinity to Nav1.2/SCNA2. 1 Publication1
Mutagenesisi56T → A: No change in affinity to Nav1.2/SCNA2. 1 Publication1
Mutagenesisi59K → D: 280-fold decrease of affinity to Nav1.2/SCNA2. 1 Publication1
Mutagenesisi60L → A: Small decrease in affinity to Nav1.2/SCNA2. 1 Publication1
Mutagenesisi61R → D: 133-fold decrease of affinity to Nav1.2/SCNA2. 1 Publication1
Mutagenesisi62L → A: No change in affinity to Nav1.2/SCNA2. 1 Publication1
Mutagenesisi63Y → A: 53-fold decrease of affinity to Nav1.2/SCNA2. 1 Publication1
Mutagenesisi66S → A: Small decrease in affinity to Nav1.2/SCNA2. 1 Publication1
Mutagenesisi68F → A: No change in affinity to Nav1.2/SCNA2. 1 Publication1
Mutagenesisi70D → N: No change in affinity to Nav1.2/SCNA2. 1 Publication1
Mutagenesisi72Y → A, D or R: No change or small decrease in affinity to Nav1.2/SCNA2. 1 Publication1
Mutagenesisi73T → A: No change in affinity to Nav1.2/SCNA2. 1 Publication1
Mutagenesisi74K → D: 13-fold decrease of affinity to Nav1.2/SCNA2. 1 Publication1
Mutagenesisi74K → G or F: No change in affinity to Nav1.2/SCNA2. 1 Publication1
Mutagenesisi75T → A: Small decrease in affinity to Nav1.2/SCNA2. 1 Publication1
Mutagenesisi77K → A: No change in affinity to Nav1.2/SCNA2. 1 Publication1
Mutagenesisi78D → K: No change in affinity to Nav1.2/SCNA2. 1 Publication1
Mutagenesisi79K → D: Small decrease in affinity to Nav1.2/SCNA2. 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 – 22Sequence analysisAdd BLAST22
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">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_000043888023 – 471 PublicationAdd BLAST25
<p>This subsection of the ‘PTM / Processing’ section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_500495796148 – 82Mu-conotoxin GVIIJ1 PublicationAdd BLAST35

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<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 residuei496'-bromotryptophan1 Publication1
<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 bondi50 ↔ 65Combined sources2 Publications
Modified residuei534-hydroxyproline1 Publication1
Disulfide bondi57 ↔ 69Combined sources2 Publications
Disulfide bondi64 ↔ 76Combined sources2 Publications
Modified residuei71S-cysteinyl cysteine1 Publication1

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">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

Cys-71 is a key residue that tethers to the channel by covalent attachment, leading to nearly irreversible inhibition (k(off) very low) (PubMed:24497506, PubMed:26817840). In order to determine the solution structure without dimerization, this residue was mutated to Cys.2 Publications

Keywords - PTMi

Bromination, Disulfide bond, Hydroxylation

<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

182
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

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
2N8HNMR-A48-82[»]

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

More...SMRi		X5IWS1

Database of comparative protein structure models

More...ModBasei		Search...

MobiDB: a database of protein disorder and mobility annotations

More...MobiDBi		Search...

<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 presence of a 'disulfide through disulfide knot' structurally defines this protein as a knottin.1 Publication
The cysteine framework is VI/VII (C-C-CC-C-C).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 O1 superfamily.Curated

Keywords - Domaini

Knottin, Signal

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR004214 Conotoxin

Pfam protein domain database

More...Pfami		View protein in Pfam
PF02950 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_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>.<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_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">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_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">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.

X5IWS1-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKLTCVVIVA ALLLTACQLI TALDCGGTQK HRALRSTIKL SLLRQHRGWC 
        60         70         80 
GDPGATCGKL RLYCCSGFCD CYTKTCKDKS SA
Length:82
Mass (Da):8,871
Last modified:February 15, 2017 - 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:iD8A907002C69A971
GO

<p>This subsection of the ‘Sequence’ section reports difference(s) between the protein sequence shown in the UniProtKB entry and other available protein sequences derived from the same gene.<p><a href='/help/sequence_caution' target='_top'>More...</a></p>Sequence cautioni

The sequence BAO65619 differs from that shown. Reason: Erroneous termination at position 76. Translated as Cys.Curated

<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 3934.49 Da from positions 48 - 82. Determined by MALDI. 1 Publication

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
AB910851 mRNA Translation: BAO65619.1 Sequence problems.

<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

<p>This subsection of the <a href="http://www.uniprot.org/manual/cross_references_section">Cross-references</a> section provides links to various web resources that are relevant for a specific protein.<p><a href='/help/web_resource' target='_top'>More...</a></p>Web resourcesi

Biological Magnetic Resonance Data Bank

synthetic GVIIJ[C71S]

Biological Magnetic Resonance Data Bank

synthetic GVIIJ disulfide-linked with cysteamine

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AB910851 mRNA Translation: BAO65619.1 Sequence problems.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
2N8HNMR-A48-82[»]
SMRiX5IWS1
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Family and domain databases

InterProiView protein in InterPro
IPR004214 Conotoxin
PfamiView protein in Pfam
PF02950 Conotoxin, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...ProtoNeti		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 nameiO17J_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: X5IWS1
<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_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: February 15, 2017
Last sequence update: February 15, 2017
Last modified: October 10, 2018
This is version 20 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. SIMILARITY comments
    Index of protein domains and families
  2. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
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