P59887 · CTXL_HOTTS
- ProteinChlorotoxin-like peptide Bs 14
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids
- Protein existenceEvidence at protein level
- Annotation score2/5
Function
function
Toxin with unknown function in healthy organisms. On glioma cells, interacts with chloride channels (probably ClC-3/CLCN3) and MMP2 at the surface of glioma cells. This complex is then internalized via caveolae, thus inhibiting the chloride channels necessary for cell shrinkage and tumor propagation (By similarity).
GO annotations
all annotations | all molecular function | virus receptor activity | dna binding | rna binding | cytoskeletal motor activity | catalytic activity | gtpase activity | structural molecule activity | transporter activity | cytoskeletal protein binding | lipid binding | cyclase activity | antioxidant activity | oxidoreductase activity | transferase activity | hydrolase activity | lyase activity | isomerase activity | ligase activity | protein tag activity | cargo receptor activity | histone binding | protein folding chaperone | translation regulator activity | nutrient reservoir activity | receptor ligand activity | molecular transducer activity | molecular adaptor activity | toxin activity | cell adhesion mediator activity | molecular function regulator activity | virus coreceptor activity | catalytic activity, acting on a protein | catalytic activity, acting on dna | catalytic activity, acting on rna | molecular carrier activity | transcription regulator activity | general transcription initiation factor activity | molecular sensor activity | molecular sequestering activity | atp-dependent activity | other molecular function | all biological process | mitotic cell cycle | cytokinesis | cytoplasmic translation | immune system process | muscle system process | circulatory system process | renal system process | respiratory system process | carbohydrate metabolic process | generation of precursor metabolites and energy | dna replication | dna repair | dna recombination | chromatin organization | dna-templated transcription | regulation of dna-templated transcription | trna metabolic process | protein folding | protein glycosylation | amino acid metabolic process | modified amino acid metabolic process | lipid metabolic process | vitamin metabolic process | sulfur compound metabolic process | intracellular protein transport | nucleocytoplasmic transport | autophagy | inflammatory response | mitochondrion organization | cytoskeleton organization | microtubule-based movement | peroxisome organization | lysosome organization | chromosome segregation | cell adhesion | establishment or maintenance of cell polarity | programmed cell death | photosynthesis | mrna metabolic process | snrna metabolic process | vesicle-mediated transport | reproductive process | digestive system process | signaling | cell differentiation | protein catabolic process | extracellular matrix organization | regulatory ncrna-mediated gene silencing | telomere organization | cell junction organization | wound healing | ribosome biogenesis | cilium organization | anatomical structure development | cell motility | nervous system process | endocrine process | protein maturation | transmembrane transport | nucleobase-containing small molecule metabolic process | hepaticobiliary system process | membrane organization | protein-containing complex assembly | cell wall organization or biogenesis | nitrogen cycle metabolic process | protein localization to plasma membrane | defense response to other organism | detoxification | meiotic nuclear division | mitotic nuclear division | mitochondrial gene expression | carbohydrate derivative metabolic process | other biological process | all cellular component | nuclear chromosome | extracellular region | extracellular space | cell wall | nucleus | nuclear envelope | nucleoplasm | chromosome | nucleolus | mitochondrion | lysosome | endosome | vacuole | peroxisome | endoplasmic reticulum | golgi apparatus | lipid droplet | microtubule organizing center | cytosol | ribosome | cytoskeleton | plasma membrane | cilium | plastid | thylakoid | external encapsulating structure | extracellular matrix | cytoplasmic vesicle | organelle | other cellular component | |||
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Aspect | Term | |
---|---|---|
Cellular Component | extracellular region | |
Molecular Function | chloride channel regulator activity | |
Molecular Function | toxin activity |
Keywords
- Molecular function
Names & Taxonomy
Protein names
- Recommended nameChlorotoxin-like peptide Bs 14
- Short namesBs14
Organism names
- Taxonomic lineageEukaryota > Metazoa > Ecdysozoa > Arthropoda > Chelicerata > Arachnida > Scorpiones > Buthida > Buthoidea > Buthidae > Mesobuthus
Accessions
- Primary accessionP59887
Subcellular Location
PTM/Processing
Features
Showing features for disulfide bond, peptide.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Disulfide bond | 1↔18 | |||||
Sequence: CGPCFTKDPETEKKCATC | ||||||
Peptide | PRO_0000044901 | 1-36 | Chlorotoxin-like peptide Bs 14 | |||
Sequence: CGPCFTKDPETEKKCATCCGGIGRCFGPQCLCNRGY | ||||||
Disulfide bond | 4↔25 | |||||
Sequence: CFTKDPETEKKCATCCGGIGRC | ||||||
Disulfide bond | 15↔30 | |||||
Sequence: CATCCGGIGRCFGPQC | ||||||
Disulfide bond | 19↔32 | |||||
Sequence: CGGIGRCFGPQCLC |
Keywords
- PTM
Expression
Tissue specificity
Expressed by the venom gland.
Structure
Family & Domains
Domain
The presence of a 'disulfide through disulfide knot' structurally defines this protein as a knottin.
Sequence similarities
Belongs to the short scorpion toxin superfamily. Chloride channel inhibitor family.
Keywords
- Domain