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UniProtKB - D9U2A1 (SNA17_LYCMC)
Protein
Neurotoxin LmNaTx17
Gene
N/A
Organism
Lychas mucronatus (Chinese swimming scorpion)
Status
Functioni
Binds voltage-independently at site-4 of sodium channels (Nav) and shift the voltage of activation toward more negative potentials thereby affecting sodium channel activation and promoting spontaneous and repetitive firing.
By similarityGO - 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: Neurotoxin LmNaTx17 |
Organismi | Lychas mucronatus (Chinese swimming scorpion) |
Taxonomic identifieri | 172552 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Ecdysozoa › Arthropoda › Chelicerata › Arachnida › Scorpiones › Buthida › Buthoidea › Buthidae › Lychas |
Subcellular locationi
Extracellular region or secreted
- Secreted By similarity
Extracellular region or secreted
- extracellular region Source: UniProtKB-SubCell
Keywords - Cellular componenti
SecretedPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Signal peptidei | 1 – 18 | Sequence analysisAdd BLAST | 18 | |
ChainiPRO_0000403819 | 19 – 86 | Neurotoxin LmNaTx17Add BLAST | 68 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Disulfide bondi | 33 ↔ 84 | PROSITE-ProRule annotation | ||
Disulfide bondi | 37 ↔ 58 | PROSITE-ProRule annotation | ||
Disulfide bondi | 44 ↔ 65 | PROSITE-ProRule annotation | ||
Disulfide bondi | 48 ↔ 67 | PROSITE-ProRule annotation |
Keywords - PTMi
Disulfide bondProteomic databases
PRIDEi | D9U2A1 |
Expressioni
Tissue specificityi
Expressed by the venom gland.
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 19 – 85 | LCN-type CS-alpha/betaPROSITE-ProRule annotationAdd BLAST | 67 |
Domaini
Has the structural arrangement of an alpha-helix connected to antiparallel beta-sheets by disulfide bonds (CS-alpha/beta).Curated
Sequence similaritiesi
Belongs to the long (4 C-C) scorpion toxin superfamily. Sodium channel inhibitor family. Beta subfamily.Curated
Keywords - Domaini
SignalFamily 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.
: The displayed sequence is further processed into a mature form. Sequence processingi
D9U2A1-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MKILFVIVLA AFFIGVHCKH GYPVQYSGRE KGCKIACVIN NASCDGECKR
60 70 80
RGGRAGYCYF WKLACFCEYL PNNSPTWDYK TGKCRV
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | EU159292 mRNA Translation: ABX76765.1 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | EU159292 mRNA Translation: ABX76765.1 |
3D structure databases
AlphaFoldDBi | D9U2A1 |
SMRi | D9U2A1 |
ModBasei | Search... |
Proteomic databases
PRIDEi | D9U2A1 |
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 | SNA17_LYCMC | |
Accessioni | D9U2A1Primary (citable) accession number: D9U2A1 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | January 11, 2011 |
Last sequence update: | October 5, 2010 | |
Last modified: | May 25, 2022 | |
This is version 26 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Animal Toxin Annotation Program |