Catalog No. ABIN7582134
Quick Overview for omega-agatoxin IVA Peptide (ABIN7582134)
Target
omega-agatoxin IVA
Origin
Agelenopsis aperta
Source
Synthetic
Application
Blocking Peptide (BP)
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Peptide Type
- Synthetic
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Purpose
- A Blocker of P/Q-Type CaV Channels
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Sequence
- KKKCIAKDYG RCKWGGTPCC RGRGCICSIM GTNCECKPRL IMEGLGLA-OH
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Specificity
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Toxin target: P-type Ca2+ channels,
Disulfide bonds between: Cys4-Cys20, Cys12-Cys25, Cys19-Cys36 and Cys27-Cys34 -
Characteristics
- A Blocker of P/Q-Type CaV Channels
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Purity
- ≥98 % (HPLC)
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omega-agatoxin IVA peptide (Atto 647N)
Reactivity: Agelenopsis aperta Host: Synthetic BP, FACS, FM, IF, LCI
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Application Notes
- Antigen Preadsorption Control: 20 nM - 1 μM
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Comment
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Electrophysiology
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Restrictions
- For Research Use only
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Format
- Lyophilized
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Reconstitution
- Centrifuge the vial (10,000 x g for 5 minutes) before adding solvent to spin down all the powder to the bottom of the vial. The lyophilized product may be difficult to visualize. Add solvent directly to the centrifuged vial. Gently tap, tilt, and roll the vial to aid dissolution. Avoid vigorous vortexing, light vortexing for up to 3 seconds is acceptable if needed. The product is soluble in pure water at high micromolar concentrations (100 μM - 1 mM). For long-term storage in solution, we recommend preparing a stock solution by dissolving the product in double-distilled water (ddH2O) at a concentration between 100-1000x of the final working concentration. Divide the stock solution into small aliquots and store at -20 °C. Before use, thaw the relevant vial(s) and dilute to the desired working concentration in your working buffer. Centrifuge all product preparations before use. It is recommended to prepare fresh solutions in working buffers just before use. Avoid multiple freeze-thaw cycles to maintain biological activity.
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Buffer
- Lyophilized from double distilled water (ddH2O). May contain TFA as a residual counter ion.
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Storage
- 4 °C,-20 °C
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Storage Comment
- The reconstituted solution can be stored at 4°C for up to 1 week. For longer periods (up to 6 months), small aliquots should be stored at -20°C. We do not recommend storing the product in working solutions for longer than a few days. Avoid multiple freeze-thaw cycles.,The reconstituted solution can be stored at 4°C for up to 1 week. For longer periods (up to 6 months), small aliquots should be stored at -20°C. We do not recommend storing the product in working solutions for longer than a few days. Avoid multiple freeze-thaw cycles.
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- omega-agatoxin IVA
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Background
- Omega-agatoxin-Aa4a, ω-AGTX-Aa4a, ω-Aga-IVA, ω-agatoxin-4A,Native ω-Agatoxin IVA (ω-Aga-IVA) was originally isolated from Agelenopsis aperta spider venom, and was shown to be a selective blocker of CaV2.1 (P/Q type) channels1. However, the sensitivity depends on the auxiliary b subunit isoform2 and on the splice variant3. Therefore, the effective concentration varies between systems. In accordance, the toxin blocks presynaptic Ca2+ currents and synaptic transmission in a variety of synapses4,5.ω-Agatoxin IVA is widely used in electrophysiological measurements of cloned and native channels6,7. It is used to assess the role of CaV2.1 channels in synaptic transmission4. In addition, it was used to map the spatial distribution of CaV2.1 channels in mouse cerebellar and hippocampal brain slices8.
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Molecular Weight
- 5202 Da
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UniProt
- P30288
Target
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