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Protein

Alpha-conotoxin-like Lt1.2

Gene
N/A
Organism
Conus litteratus (Lettered cone)
Status
Reviewed-Annotation score: Annotation score: 3 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 Lt1.2
Alternative name(s):
Lt1b
OrganismiConus litteratus (Lettered cone)
Taxonomic identifieri89445 [NCBI]
Taxonomic lineageiEukaryotaMetazoaLophotrochozoaMolluscaGastropodaCaenogastropodaHypsogastropodaNeogastropodaConoideaConidaeConus

Organism-specific databases

ConoServeri544. LeD2 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_000031541922 – 48By similarityAdd BLAST27
PeptideiPRO_000031542049 – 65Alpha-conotoxin-like Lt1.2Add BLAST17

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Disulfide bondi50 ↔ 56By similarity
Disulfide bondi51 ↔ 64By similarity
Modified residuei65Glycine amideBy similarity1

Keywords - PTMi

Amidation, Disulfide bond

Expressioni

Tissue specificityi

Expressed by the venom duct.

Structurei

3D structure databases

ProteinModelPortaliQ2I2R7.
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.
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.

Q2I2R7-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MGMRMMFIMF MLVVLATTVD TFTSDRALDA MNAAASNKAS RLIALAVRGC
60
CARAACAGIH QELCGGRR
Length:68
Mass (Da):7,270
Last modified:March 7, 2006 - v1
Checksum:i2F4F745DA53B2F3D
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
DQ345365 mRNA. Translation: ABC74973.1.

Similar proteinsi

Entry informationi

Entry nameiCA12_CONLT
AccessioniPrimary (citable) accession number: Q2I2R7
Entry historyiIntegrated into UniProtKB/Swiss-Prot: January 15, 2008
Last sequence update: March 7, 2006
Last modified: November 22, 2017
This is version 34 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programAnimal Toxin Annotation Program

Miscellaneousi

Caution

Conotoxins Lt1.1 and Lt1.2 are the same protein. They possess a different name due to their different precursors.Curated

Documents

  1. SIMILARITY comments
    Index of protein domains and families