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Protein

Alpha-conotoxin-like Qc1.4b

Gene
N/A
Organism
Conus quercinus (Oak 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

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 Qc1.4b
OrganismiConus quercinus (Oak cone)
Taxonomic identifieri101313 [NCBI]
Taxonomic lineageiEukaryotaMetazoaLophotrochozoaMolluscaGastropodaCaenogastropodaNeogastropodaConoideaConidaeConusLividoconus

Organism-specific databases

ConoServeri559 Qc1.4b 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
PropeptideiPRO_0000377451‹1 – 19By similarityAdd BLAST›19
PeptideiPRO_000037745220 – 36Alpha-conotoxin-like Qc1.4bAdd BLAST17
PropeptideiPRO_000037745337 – 40By similarity4

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Disulfide bondi22 ↔ 28By similarity
Disulfide bondi23 ↔ 36By similarity
Modified residuei36Cysteine amideBy similarity1

Keywords - PTMi

Amidation, Disulfide bond

Proteomic databases

PRIDEiP0CAQ9

Expressioni

Tissue specificityi

Expressed by the venom duct.Curated

Structurei

3D structure databases

ProteinModelPortaliP0CAQ9
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domaini

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

Sequence similaritiesi

Belongs to the conotoxin A superfamily.Curated

Family and domain databases

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

Sequencei

Sequence statusi: Fragment.

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

P0CAQ9-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40
SDGRNTAAND KASDLMALRD GCCPNPSCSV NNPDICGGGR
Length:40
Mass (Da):4,053
Last modified:June 16, 2009 - v1
Checksum:i6BFFB2C37061EE62
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Non-terminal residuei11

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
DQ311069 Genomic DNA Translation: ABD33861.1

Similar proteinsi

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
DQ311069 Genomic DNA Translation: ABD33861.1

3D structure databases

ProteinModelPortaliP0CAQ9
ModBaseiSearch...
MobiDBiSearch...

Proteomic databases

PRIDEiP0CAQ9

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Organism-specific databases

ConoServeri559 Qc1.4b precursor

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 nameiCA14B_CONQU
AccessioniPrimary (citable) accession number: P0CAQ9
Secondary accession number(s): A1X8C8, A1X8C9
Entry historyiIntegrated into UniProtKB/Swiss-Prot: June 16, 2009
Last sequence update: June 16, 2009
Last modified: September 12, 2018
This is version 26 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programAnimal Toxin Annotation Program
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

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