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UniProtKB - P15228 (AEP1_MESMA)
Protein
Toxin BmKAEP
Gene
N/A
Organism
Mesobuthus martensii (Manchurian scorpion) (Buthus martensii)
Status
Functioni
Shows anti-epileptic activity. Shares high homology with depressant insect toxins, but shows very weak toxicity against mammals and insects and no obvious symptoms on insect larvae. May target voltage-gated sodium channel (Nav).
2 PublicationsGO - Molecular functioni
- sodium channel inhibitor activity Source: UniProtKB
- 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: Toxin BmKAEPAlternative name(s): Anti-epilepsy peptide BmK AEP |
Organismi | Mesobuthus martensii (Manchurian scorpion) (Buthus martensii) |
Taxonomic identifieri | 34649 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Ecdysozoa › Arthropoda › Chelicerata › Arachnida › Scorpiones › Buthida › Buthoidea › Buthidae › Mesobuthus |
Subcellular locationi
Extracellular region or secreted
Extracellular region or secreted
- extracellular region Source: UniProtKB
Keywords - Cellular componenti
SecretedPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Signal peptidei | 1 – 21 | 1 PublicationAdd BLAST | 21 | |
ChainiPRO_0000035212 | 22 – 82 | Toxin BmKAEPAdd BLAST | 61 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Disulfide bondi | 31 ↔ 81 | PROSITE-ProRule annotation | ||
Disulfide bondi | 35 ↔ 56 | PROSITE-ProRule annotation | ||
Disulfide bondi | 42 ↔ 63 | PROSITE-ProRule annotation | ||
Disulfide bondi | 46 ↔ 65 | PROSITE-ProRule annotation | ||
Modified residuei | 82 | Glycine amide1 Publication | 1 |
Keywords - PTMi
Amidation, Disulfide bondExpressioni
Tissue specificityi
Expressed by the venom gland.
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 22 – 82 | LCN-type CS-alpha/betaPROSITE-ProRule annotationAdd BLAST | 61 |
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
P15228-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MKLFLLLVIS ASMLIDGLVN ADGYIRGSNG CKVSCLLGNE GCNKECRAYG
60 70 80
ASYGYCWTWK LACWCQGLPD DKTWKSESNT CGGKK
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sequence conflicti | 29 – 30 | NG → DN AA sequence (PubMed:2930463).Curated | 2 | |
Sequence conflicti | 59 | W → V AA sequence (PubMed:2930463).Curated | 1 | |
Sequence conflicti | 63 – 64 | CW → QD AA sequence (PubMed:2930463).Curated | 2 | |
Sequence conflicti | 66 | Q → E AA sequence (PubMed:11298767).Curated | 1 | |
Sequence conflicti | 66 | Q → E AA sequence (PubMed:2930463).Curated | 1 | |
Sequence conflicti | 71 | D → T AA sequence (PubMed:2930463).Curated | 1 |
Mass spectrometryi
Molecular mass is 6730.4 Da. Determined by ESI. 1 Publication
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AF160868 mRNA Translation: AAD43570.2 |
PIRi | S02174 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AF160868 mRNA Translation: AAD43570.2 |
PIRi | S02174 |
3D structure databases
AlphaFoldDBi | P15228 |
SMRi | P15228 |
ModBasei | Search... |
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 | AEP1_MESMA | |
Accessioni | P15228Primary (citable) accession number: P15228 Secondary accession number(s): Q9Y0B8 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | April 1, 1990 |
Last sequence update: | October 24, 2003 | |
Last modified: | May 25, 2022 | |
This is version 92 of the entry and version 2 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Animal Toxin Annotation Program |
Miscellaneousi
Keywords - Technical termi
Direct protein sequencingDocuments
- SIMILARITY comments
Index of protein domains and families