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UniProtKB - P01524 (CM3B_CONGE)
Protein
Mu-conotoxin GIIIB
Gene
N/A
Organism
Conus geographus (Geography cone) (Nubecula geographus)
Status
Functioni
Mu-conotoxins block voltage-gated sodium channels (Nav).
By similarityGO - Molecular functioni
- sodium channel inhibitor activity Source: InterPro
- toxin activity Source: UniProtKB-KW
Keywordsi
Molecular function | Ion channel impairing toxin, Neurotoxin, Toxin, Voltage-gated sodium channel impairing toxin |
Names & Taxonomyi
Protein namesi | Recommended name: Mu-conotoxin GIIIB1 PublicationAlternative name(s): Geographutoxin II1 Publication Short name: GTx-II1 Publication Myotoxin II |
Organismi | Conus geographus (Geography cone) (Nubecula geographus) |
Taxonomic identifieri | 6491 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Spiralia › Lophotrochozoa › Mollusca › Gastropoda › Caenogastropoda › Neogastropoda › Conoidea › Conidae › Conus › Gastridium |
Organism-specific databases
ConoServeri | 1566, GIIIB |
Subcellular locationi
Extracellular region or secreted
- Secreted 2 Publications
Extracellular region or secreted
- extracellular region Source: UniProtKB-SubCell
Keywords - Cellular componenti
SecretedPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
PeptideiPRO_0000044494 | 1 – 22 | Mu-conotoxin GIIIB2 PublicationsAdd BLAST | 22 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Disulfide bondi | 3 ↔ 15 | Combined sources1 Publication | ||
Disulfide bondi | 4 ↔ 20 | Combined sources1 Publication | ||
Modified residuei | 6 | 4-hydroxyproline; partial1 Publication | 1 | |
Modified residuei | 7 | 4-hydroxyproline; partial1 Publication | 1 | |
Disulfide bondi | 10 ↔ 21 | Combined sources1 Publication | ||
Modified residuei | 17 | 4-hydroxyproline1 Publication | 1 | |
Modified residuei | 22 | Alanine amide1 Publication | 1 |
Keywords - PTMi
Amidation, Disulfide bond, HydroxylationExpressioni
Tissue specificityi
Expressed by the venom duct.2 Publications
Structurei
Secondary structure
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details3D structure databases
AlphaFoldDBi | P01524 |
SMRi | P01524 |
ModBasei | Search... |
PDBe-KBi | Search... |
Miscellaneous databases
EvolutionaryTracei | P01524 |
Family & Domainsi
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
Sequence similaritiesi
Belongs to the conotoxin M superfamily.Curated
Family and domain databases
InterProi | View protein in InterPro IPR008036, Conotoxin_mu-typ |
Pfami | View protein in Pfam PF05374, Mu-conotoxin, 1 hit |
PROSITEi | View protein in PROSITE PS60013, MU_CONOTOXIN, 1 hit |
Similar proteinsi
Cross-referencesi
Sequence databases
PIRi | A01787, MXKN2 |
3D structure databases
Select the link destinations: PDBei RCSB PDBi PDBji Links Updated | PDB entry | Method | Resolution (Å) | Chain | Positions | PDBsum |
1GIB | NMR | - | A | 1-22 | [»] | |
AlphaFoldDBi | P01524 | |||||
SMRi | P01524 | |||||
ModBasei | Search... | |||||
PDBe-KBi | Search... |
Organism-specific databases
ConoServeri | 1566, GIIIB |
Miscellaneous databases
EvolutionaryTracei | P01524 |
Family and domain databases
InterProi | View protein in InterPro IPR008036, Conotoxin_mu-typ |
Pfami | View protein in Pfam PF05374, Mu-conotoxin, 1 hit |
PROSITEi | View protein in PROSITE PS60013, MU_CONOTOXIN, 1 hit |
MobiDBi | Search... |
Entry informationi
Entry namei | CM3B_CONGE | |
Accessioni | P01524Primary (citable) accession number: P01524 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | July 21, 1986 |
Last sequence update: | July 21, 1986 | |
Last modified: | May 25, 2022 | |
This is version 97 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Animal Toxin Annotation Program |
Miscellaneousi
Keywords - Technical termi
3D-structure, Direct protein sequencingDocuments
- PDB cross-references
Index of Protein Data Bank (PDB) cross-references - SIMILARITY comments
Index of protein domains and families