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Protein

Alpha-conotoxin-like Tx2

Gene
N/A
Organism
Conus textile (Cloth-of-gold cone)
Status
Reviewed-Annotation score: Annotation score: 2 out of 5-Experimental evidence at transcript leveli

Functioni

Alpha-conotoxins act on postsynaptic membranes, they bind to the nicotinic acetylcholine receptors (nAChR) and thus inhibit them.By similarity

GO - Molecular functioni

Keywordsi

Molecular functionAcetylcholine receptor inhibiting toxin, Ion channel impairing toxin, Neurotoxin, Postsynaptic neurotoxin, Toxin

Names & Taxonomyi

Protein namesi
Recommended name:
Alpha-conotoxin-like Tx2
OrganismiConus textile (Cloth-of-gold cone)
Taxonomic identifieri6494 [NCBI]
Taxonomic lineageiEukaryotaMetazoaLophotrochozoaMolluscaGastropodaCaenogastropodaHypsogastropodaNeogastropodaConoideaConidaeConus

Organism-specific databases

ConoServeri53. Tx2 precursor.

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Secreted

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 21Sequence analysisAdd BLAST21
PropeptideiPRO_000003489422 – 49By similarityAdd BLAST28
PeptideiPRO_000003489550 – 66Alpha-conotoxin-like Tx2Add BLAST17

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Disulfide bondi51 ↔ 57By similarity
Disulfide bondi52 ↔ 65By similarity

Keywords - PTMi

Disulfide bond

Expressioni

Tissue specificityi

Expressed by the venom duct.

Structurei

3D structure databases

ProteinModelPortaliQ9XZK7.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domaini

The cysteine framework is I (CC-C-C). Alpha4/7 pattern.

Sequence similaritiesi

Belongs to the conotoxin A superfamily.Curated

Keywords - Domaini

Signal

Family and domain databases

InterProiView protein in InterPro
IPR009958. Conotoxin_a-typ.
IPR018072. Conotoxin_a-typ_CS.
PfamiView protein in Pfam
PF07365. Toxin_8. 1 hit.
PROSITEiView protein in PROSITE
PS60014. ALPHA_CONOTOXIN. 1 hit.

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q9XZK7-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MGMRMMFTVF LLVVLATTVV SFTSGRRTFH GRNAAAKASG LVSLTDRRPE
60
CCSHPACNVD HPEICR
Length:66
Mass (Da):7,255
Last modified:November 1, 1999 - v1
Checksum:iEDDB59BBAB94F26F
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF146353 mRNA. Translation: AAD31913.1.

Similar proteinsi

Entry informationi

Entry nameiCA2_CONTE
AccessioniPrimary (citable) accession number: Q9XZK7
Entry historyiIntegrated into UniProtKB/Swiss-Prot: August 29, 2001
Last sequence update: November 1, 1999
Last modified: November 22, 2017
This is version 59 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programAnimal Toxin Annotation Program

Miscellaneousi

Documents

  1. SIMILARITY comments
    Index of protein domains and families