UniProtKB - Q9GU58 (CP9A_CONTE)
Protein
Conotoxin tx9a
Gene
N/A
Organism
Conus textile (Cloth-of-gold cone)
Status
Functioni
In vivo, intracranial injection into mice of 10 pmol/g of the peptide induces running in circles and hyperactivity. At higher doses (50 pmol/g), the mice exhibit running and climbing symptoms for close to one hour. Between 130 and 150 pmol/g, characteristic "spasmodic" symptomatology is elicited. A hand clap would make mice jump high and start running rapidly. When exposed to a loud hand clap, or if the cage cover were dropped, the mice lose motor control and exhibit seizure-like symptoms from which they eventually recover. At the highest doses tested (over 250 pmol/g), after the characteristic spasmodic symptomatology, lethality occurs. Injection of a similar dose range intramuscularly into Siamese fighting fish elicited no unusual symptomatology.1 Publication
GO - Molecular functioni
- toxin activity Source: UniProtKB-KW
Keywordsi
Molecular function | Neurotoxin, Toxin |
Names & Taxonomyi
Protein namesi | Recommended name: Conotoxin tx9a1 PublicationAlternative name(s): Spasmodic peptide1 Publication |
Organismi | Conus textile (Cloth-of-gold cone) |
Taxonomic identifieri | 6494 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Lophotrochozoa › Mollusca › Gastropoda › Caenogastropoda › Neogastropoda › Conoidea › Conidae › Conus › Cylinder |
Organism-specific databases
ConoServeri | 608 TxIXA precursor |
Subcellular locationi
Extracellular region or secreted
- Secreted 1 Publication
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 – 27 | Sequence analysisAdd BLAST | 27 | |
PropeptideiPRO_0000035011 | 28 – 58 | CuratedAdd BLAST | 31 | |
PeptideiPRO_0000035012 | 61 – 87 | Conotoxin tx9a2 PublicationsAdd BLAST | 27 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Disulfide bondi | 62 ↔ 76 | By similarity | ||
Disulfide bondi | 66 ↔ 78 | By similarity | ||
Modified residuei | 68 | 4-carboxyglutamate; partial2 Publications | 1 | |
Disulfide bondi | 72 ↔ 83 | By similarity | ||
Modified residuei | 73 | 4-carboxyglutamate; partial2 Publications | 1 | |
Modified residuei | 87 | Asparagine amide3 Publications | 1 |
Post-translational modificationi
Contains 3 disulfide bonds.1 Publication
Exists in 4 different forms, depending on gamma-carboxyglutamations. Tx9a-EE does not contain gamma-carboxyglutamate, tx9a-E/gamma has one gamma-carboxyglutamate at position 73, tx9a-gamma/E has one gamma-carboxyglutamate at position 68, and tx9a-agmma/gamma has two gamma-carboxyglutamates at positions 68 and 73.1 Publication
Keywords - PTMi
Amidation, Cleavage on pair of basic residues, Disulfide bond, Gamma-carboxyglutamic acidProteomic databases
PRIDEi | Q9GU58 |
Expressioni
Tissue specificityi
Expressed by the venom duct. All different gamma-carboxyalted forms are mostly present in part 2, part 3 and part 4 of the venom duct. They are also found in part 1 (proximal part near the venom bulb) and part 5, but in lower quantity.2 Publications
Structurei
3D structure databases
ProteinModelPortali | Q9GU58 |
SMRi | Q9GU58 |
ModBasei | Search... |
MobiDBi | Search... |
Family & Domainsi
Domaini
The cysteine framework is IX (C-C-C-C-C-C).Curated
Sequence similaritiesi
Belongs to the conotoxin P superfamily.Curated
Keywords - Domaini
SignalFamily and domain databases
InterProi | View protein in InterPro IPR010012 Toxin_11 |
Pfami | View protein in Pfam PF07473 Toxin_11, 1 hit |
i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
Q9GU58-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MHLSLARSAV LMLLLLFALG NFVVVQSGQI TRDVDNGQLT DNRRNLQSKW
60 70 80
KPVSLYMSRR GCNNSCQEHS DCESHCICTF RGCGAVNG
Mass spectrometryi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AF193510 mRNA Translation: AAG28406.1 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AF193510 mRNA Translation: AAG28406.1 |
3D structure databases
ProteinModelPortali | Q9GU58 |
SMRi | Q9GU58 |
ModBasei | Search... |
MobiDBi | Search... |
Proteomic databases
PRIDEi | Q9GU58 |
Protocols and materials databases
Structural Biology Knowledgebase | Search... |
Organism-specific databases
ConoServeri | 608 TxIXA precursor |
Family and domain databases
InterProi | View protein in InterPro IPR010012 Toxin_11 |
Pfami | View protein in Pfam PF07473 Toxin_11, 1 hit |
ProtoNeti | Search... |
Entry informationi
Entry namei | CP9A_CONTE | |
Accessioni | Q9GU58Primary (citable) accession number: Q9GU58 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | July 26, 2002 |
Last sequence update: | March 1, 2001 | |
Last modified: | September 12, 2018 | |
This is version 64 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
Direct protein sequencingDocuments
- SIMILARITY comments
Index of protein domains and families