Hmdb loader
Identification
HMDB Protein ID HMDBP14458
Secondary Accession Numbers None
Name Mu-theraphotoxin-Os1a
Synonyms
  1. Mu-TRTX-Os1a
  2. Cyriotoxin-1a
  3. Mu-theraphotoxin-Cs1a
  4. CyrTx-1a
Gene Name Not Available
Protein Type Unknown
Biological Properties
General Function Not Available
Specific Function Potently and reversibly inhibits some human voltage-gated sodium channels (Nav1.1/SCN1A (IC(50)=72.0 nM), Nav1.2/SCN2A (IC(50)=75.5 nM), Nav1.6/SCN8A (IC(50)=115.0 nM), Nav1.7/SCN9A (IC(50)=52.7-129.5 nM), Nav1.3/SCN3A (IC(50)=306.6 nM)) (PubMed:30784059). The hNav1.7/SCN9A channel inhibition occurs without any change in steady-state inactivation- and conductance-voltage relationships (PubMed:30784059). On adult mouse DRG neurons, this toxin is approximately 1000-fold more efficient to inhibit tetrodotoxin (TTX)-sensitive than TTX-resistant sodium currents (PubMed:30784059). In vivo, this toxin exhibits analgesic effects in mice pain models (PubMed:30784059).
Pathways Not Available
Reactions Not Available
GO Classification
Biological Process
pathogenesis
Cellular Component
extracellular region
Molecular Function
ion channel inhibitor activity
toxin activity
Cellular Location Not Available
Gene Properties
Chromosome Location Not Available
Locus Not Available
SNPs Not Available
Gene Sequence Not Available
Protein Properties
Number of Residues Not Available
Molecular Weight 3588.25
Theoretical pI Not Available
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence Not Available
GenBank ID Protein Not Available
UniProtKB/Swiss-Prot ID A0A4V8GZX0
UniProtKB/Swiss-Prot Entry Name TXNA1_OMOSC
PDB IDs
GenBank Gene ID Not Available
GeneCard ID Not Available
GenAtlas ID Not Available
HGNC ID Not Available
References
General References
  1. Goncalves TC, Benoit E, Kurz M, Lucarain L, Fouconnier S, Combemale S, Jaquillard L, Schombert B, Chambard JM, Boukaiba R, Hessler G, Bohme A, Bialy L, Hourcade S, Beroud R, De Waard M, Servent D, Partiseti M: From identification to functional characterization of cyriotoxin-1a, an antinociceptive toxin from the spider Cyriopagopus schioedtei. Br J Pharmacol. 2019 May;176(9):1298-1314. doi: 10.1111/bph.14628. Epub 2019 Apr 9. [PubMed:30784059 ]