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Protein

Alpha-conotoxin-like Bu1.1

Gene
N/A
Organism
Conus bullatus (Bubble cone)
Status
Reviewed-Annotation score: -Protein inferred from homologyi

Functioni

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

Miscellaneous

Does not inhibits high voltage-activated (HVA) calcium channel currents in rat DRG neurons (at 1 µM toxin) (PubMed:26948522).1 Publication

Caution

The synthetic peptide described in PubMed:26948522 shows the toxin without C-terminal amidation.1 Publication

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 Bu1.13 Publications
Alternative name(s):
Bu181 Publication
OrganismiConus bullatus (Bubble cone)
Taxonomic identifieri89438 [NCBI]
Taxonomic lineageiEukaryotaMetazoaLophotrochozoaMolluscaGastropodaCaenogastropodaNeogastropodaConoideaConidaeConusTextilia

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_000040998822 – 471 PublicationAdd BLAST26
PeptideiPRO_000040998948 – 62Alpha-conotoxin-like Bu1.11 PublicationAdd BLAST15

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Disulfide bondi51 ↔ 57By similarity
Disulfide bondi52 ↔ 62By similarity
Modified residuei62Cysteine amideCurated1

Keywords - PTMi

Amidation, Disulfide bond

Expressioni

Tissue specificityi

Expressed by the venom duct.1 Publication

Family & Domainsi

Domaini

The cysteine framework is I (CC-C-C). Alpha4/4 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
PfamiView protein in Pfam
PF07365 Toxin_8, 1 hit

Sequencei

Sequence statusi: Complete.

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

P0CY86-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MGMRMMFTVF LLIVLATTVV SFSTDDESDG SNEEPSADQT ARSSMNRAPG
60
CCNNPACVKH RCG
Length:63
Mass (Da):6,789
Last modified:June 28, 2011 - v1
Checksum:i9E4CFE75BE9FCA17
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti13I → V in CAR81556 (Ref. 2) Curated1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
FB299970 Unassigned DNA Translation: CAR81556.1

Similar proteinsi

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
FB299970 Unassigned DNA Translation: CAR81556.1

3D structure databases

ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Family and domain databases

InterProiView protein in InterPro
IPR009958 Conotoxin_a-typ
PfamiView protein in Pfam
PF07365 Toxin_8, 1 hit
ProtoNetiSearch...

Entry informationi

Entry nameiCA11_CONBU
AccessioniPrimary (citable) accession number: P0CY86
Entry historyiIntegrated into UniProtKB/Swiss-Prot: June 28, 2011
Last sequence update: June 28, 2011
Last modified: November 7, 2018
This is version 18 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
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

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