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UniProtKB - P58779 (SCX5_CENSC)
Protein
Alpha-like toxin CsEv5
Gene
N/A
Organism
Centruroides sculpturatus (Arizona bark scorpion)
Status
Functioni
Binds voltage-independently sodium channels (Nav) and inhibits the inactivation of the activated channels, thereby blocking neuronal transmission. Is highly toxic to insects and barely toxic to mammals. As it does not compete with the classical alpha-toxin AaH2, this toxin is considered as an alpha-like toxin.
1 PublicationGO - Molecular functioni
- sodium channel inhibitor activity Source: InterPro
- toxin activity Source: UniProtKB-KW
GO - Biological processi
- defense response Source: InterPro
- modulation by symbiont of host nervous system process Source: InterPro
Keywordsi
Molecular function | Ion channel impairing toxin, Neurotoxin, Toxin, Voltage-gated sodium channel impairing toxin |
Names & Taxonomyi
Protein namesi | Recommended name: Alpha-like toxin CsEv5Short name: CsE v5 Short name: CsE-v5 |
Organismi | Centruroides sculpturatus (Arizona bark scorpion) |
Taxonomic identifieri | 218467 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Ecdysozoa › Arthropoda › Chelicerata › Arachnida › Scorpiones › Buthida › Buthoidea › Buthidae › Centruroides |
Subcellular locationi
Extracellular region or secreted
Extracellular region or secreted
- extracellular region Source: UniProtKB-SubCell
Keywords - Cellular componenti
SecretedPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000066774 | 1 – 59 | Alpha-like toxin CsEv5Add BLAST | 59 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Disulfide bondi | 11 ↔ 59 | PROSITE-ProRule annotation | ||
Disulfide bondi | 15 ↔ 35 | PROSITE-ProRule annotation | ||
Disulfide bondi | 21 ↔ 40 | PROSITE-ProRule annotation | ||
Disulfide bondi | 25 ↔ 42 | PROSITE-ProRule annotation |
Keywords - PTMi
Disulfide bondExpressioni
Tissue specificityi
Expressed by the venom gland.
Structurei
Secondary structure
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details3D structure databases
AlphaFoldDBi | P58779 |
BMRBi | P58779 |
SMRi | P58779 |
ModBasei | Search... |
PDBe-KBi | Search... |
Miscellaneous databases
EvolutionaryTracei | P58779 |
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 1 – 59 | LCN-type CS-alpha/betaPROSITE-ProRule annotationAdd BLAST | 59 |
Domaini
Has the structural arrangement of an alpha-helix connected to antiparallel beta-sheets by disulfide bonds (CS-alpha/beta).Curated
Sequence similaritiesi
Family and domain databases
CDDi | cd00107, Knot1, 1 hit |
Gene3Di | 3.30.30.10, 1 hit |
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 |
Pfami | View protein in Pfam PF00537, Toxin_3, 1 hit |
PRINTSi | PR00285, SCORPNTOXIN |
SMARTi | View protein in SMART SM00505, Knot1, 1 hit |
SUPFAMi | SSF57095, SSF57095, 1 hit |
PROSITEi | View protein in PROSITE PS51863, LCN_CSAB, 1 hit |
i Sequence
Sequence statusi: Complete.
P58779-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
KDGYPVDSKG CKLSCVANNY CDNQCKMKKA SGGHCYAMSC YCEGLPENAK
VSDSATNIC
Similar proteinsi
Cross-referencesi
3D structure databases
Select the link destinations: PDBei RCSB PDBi PDBji Links Updated | PDB entry | Method | Resolution (Å) | Chain | Positions | PDBsum |
1I6F | NMR | - | A | 1-59 | [»] | |
1I6G | NMR | - | A | 1-59 | [»] | |
1NH5 | NMR | - | A | 1-59 | [»] | |
AlphaFoldDBi | P58779 | |||||
BMRBi | P58779 | |||||
SMRi | P58779 | |||||
ModBasei | Search... | |||||
PDBe-KBi | Search... |
Miscellaneous databases
EvolutionaryTracei | P58779 |
Family and domain databases
CDDi | cd00107, Knot1, 1 hit |
Gene3Di | 3.30.30.10, 1 hit |
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 |
Pfami | View protein in Pfam PF00537, Toxin_3, 1 hit |
PRINTSi | PR00285, SCORPNTOXIN |
SMARTi | View protein in SMART SM00505, Knot1, 1 hit |
SUPFAMi | SSF57095, SSF57095, 1 hit |
PROSITEi | View protein in PROSITE PS51863, LCN_CSAB, 1 hit |
MobiDBi | Search... |
Entry informationi
Entry namei | SCX5_CENSC | |
Accessioni | P58779Primary (citable) accession number: P58779 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | April 16, 2002 |
Last sequence update: | April 16, 2002 | |
Last modified: | May 25, 2022 | |
This is version 87 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