Joro toxin,Also known as Joro spider toxin, it typically appears as a dry and uniform powder of light red or light reddish brown color, odorless. It needs to be stored under specific conditions to ensure its stability and activity. Generally speaking, it should be stored in an environment of -20 ° C and protected from light and moisture. It is mainly used as a pharmaceutical raw material and has potential medicinal value. May be used in certain specific stages of industrial production, such as as as food additives or nutritional fortifiers. Due to its unique origin and properties, its application may be subject to strict regulation and restrictions.
Additional information of chemical compound:
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Melting point |
>213℃(dec.) |
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Boiling point |
979.9±65.0℃(Predicted) |
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Density |
1.195±0.06 g/cm3(Predicted) |
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Storage conditions |
−20℃ |
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Joro toxin,Also known as Joro spider toxin or JSTX-3, its uses are mainly concentrated in the following areas:
Nutritional source: Lactoferrin can serve as an important source of nutrition for the human body, supplementing iron and amino acids to help maintain good health.
Disease prevention and treatment: Lactoferrin has the potential to prevent and treat various human diseases. For example, it can be used to maintain the balance of gut microbiota, prevent infection and resist viruses, inhibit the occurrence and metastasis of tumors, and hinder the production of free radicals in the body, thereby protecting the body from damage.Enhancing immunity: Lactoferrin has significant immunomodulatory effects and can enhance the body's immunity. It can promote the proliferation and differentiation of immune cells, enhance their activity, and thus strengthen the body's resistance to pathogens. In addition, lactoferrin can inhibit the growth of viruses and bacteria, reducing the risk of infection.
Nutritional supplementation and health maintenance
Promoting intestinal health: Lactoferrin also has a positive promoting effect on intestinal health. It can regulate the balance of gut microbiota, promote the growth of beneficial bacteria, inhibit the proliferation of harmful bacteria, and thus maintain the normal function of the gut. In addition, lactoferrin can promote the repair and regeneration of intestinal mucosa, protecting the intestine from damage.
This helps to slow down the aging process and protect cells and tissues from oxidative damage.
Other applications: Lactoferrin may also have other potential health benefits, such as improving sleep quality and promoting wound healing. However, these applications often require further research and validation to confirm their actual effectiveness and safety.
Scientific research and chemical reagents
Scientific research: Lactoferrin has become an important object of scientific research in fields such as biology and medicine due to its unique and complex structure. Scientists can further understand the mechanism of lactoferrin in vivo by studying its structure and function, providing theoretical basis for the prevention and treatment of related diseases.
Biological function research: Lactoferrin (non spider toxin) has multiple biological functions, including broad-spectrum antibacterial, antiviral, and anti-tumor effects.
And is related to many important physiological processes in the body, such as regulating iron balance, regulating bone marrow cell production, promoting cell growth, regulating immune function, and synergistic effects with various antibiotics and antifungal agents.
Through scientific research, we can further understand the functions and mechanisms of lactoferrin, providing theoretical basis for the prevention and treatment of related diseases.
Scientific research and chemical reagents
Chemical reagents: Lactoferrin can also be used as a chemical reagent for foreign trade exports and scientific experiments. Its high purity and stability make it an ideal choice for many chemical reactions and biological experiments.
Drug development: The antibacterial, antiviral, and anti-tumor activities of lactoferrin make it a potential target for drug development. By studying its active ingredients and mechanisms of action, drugs with new therapeutic effects can be developed for the treatment of related diseases.
Industrial raw materials: Lactoferrin, as a high-quality protein source, can be used as an industrial raw material for large-scale industrial production.
It may exist in powder form, with a light red or light reddish brown appearance, odorless, and easy to store and transport.
Foreign trade exports: Lactoferrin has certain competitiveness in the international market due to its unique nutritional value and functional characteristics.
Therefore, it is often used for foreign trade exports to meet the demand for high-quality protein in different countries and regions.
Industrial applications
Chemical reagents: Lactoferrin can also be used as a chemical reagent. In specific chemical reactions, lactoferrin can act as a catalyst or additive to promote the progress of the reaction or enhance its selectivity.
In addition, lactoferrin can also be used as a standard or control in chemical analysis or biological testing, for calibrating instruments, validating detection methods, or evaluating the accuracy of test results.Other industrial fields: In addition to the pharmaceutical industry, lactoferrin may also play an important role in other industrial fields, such as cosmetics, daily chemical products, etc.
Preparation and purification techniques
Collection of natural venom
Electrical stimulation method: Apply a 0.5 mA pulse current (at a frequency of 2 Hz) to adult female spiders. The single collection amount is 0.2 - 0.5 mg (dry weight).
Venom gland dissection method: Separate the venom glands under CO₂ anesthesia, and obtain the crude venom through homogenization and centrifugation. The yield per spider is 0.8 - 1.2 mg.
Purification process flow
Ion-exchange chromatography: Using an SP-Sepharose Fast Flow column, eluted with a 0-0.5 M NaCl gradient, the purity was increased to 75%;
Reversed-phase HPLC: C18 column (250×4.6 mm, 5 μm), mobile phase was 0.1% TFA/acetone, flow rate 1 mL/min, detected at 280 nm wavelength, final purity > 99%;
Mass spectrometry verification: Molecular weight confirmed by ESI-Q-TOF MS, error < 0.01 Da.
Advances in Synthetic Biology
Solid-phase synthesis: Using the Fmoc strategy, amino acids were gradually coupled on Rink Amide resin. The crude product yield was 65%, and after HPLC purification, the total yield was 42%.Yeast expression system: The joro toxin gene was cloned into the Pichia pastoris yeast. It was cultivated in a 5 L fermenter for 72 hours, and the expression level reached 120 mg/L.
Pharmaceutical raw materials: Joro spider toxin, as a pharmaceutical raw material, has potential biological activity. The specific functional groups and molecular conformations in its chemical structure enable it to interact with certain receptors or enzymes in the organism, thereby exhibiting specific pharmacological effects. This unique biological activity makes Joro spider toxin have potential application value in the field of medicine.Analgesic drugs: Joro spider toxin or its analogues may have analgesic activity. Through in-depth research on its analgesic mechanism, new analgesic drugs with novel therapeutic effects can be developed for the treatment of various painful diseases, such as neuralgia and cancer pain.
Drugs in the field of neuroscience:
Joro spider toxin also has potential application value in the field of neuroscience. It can serve as a neurobiological probe for studying the structure and function of the nervous system.
In addition, by studying its mechanism of action, drugs with neuroprotective or neuroregulatory effects can be developed for the treatment of neurological diseases such as Parkinson's disease, Alzheimer's disease, etc.
Pharmaceutical raw materials and potential drug development
Drug development process: Drug development typically includes stages such as drug discovery, preclinical research, clinical trials, and market registration. In the stage of drug discovery, scientists need to use high-throughput screening, chemical synthesis and other methods to discover compounds with potential pharmacological effects. Then, through preclinical studies, evaluate the pharmacological, pharmacokinetic, and safety indicators of the compound.
Finally, the effectiveness and safety of the drug will be verified through clinical trials, and an application for market registration will be submitted.
Attention: In the process of drug development, it is necessary to strictly comply with relevant laws, regulations, and ethical norms to ensure the safety and legality of the research. Meanwhile, it is necessary to conduct in-depth research on the structure and properties of compounds to understand their pharmacological mechanisms and potential toxicity. In addition, sufficient quality control and stability studies are needed to ensure the quality and stability of the drug.
Advantages of this over similar products
High receptor specificity-It selectively targets invertebrate glutamate receptors with precise binding ability, barely interfering with mammalian neural channels. It delivers accurate experimental results and avoids non-specific interference common to ordinary neurotoxins.
Stable biological activity-The molecular structure maintains stable potency under conventional experimental temperature and pH conditions. It is not easy to inactivate during use and storage, ensuring consistent performance in repeated tests.
Distinct action mechanism-It works by blocking ion channels to suppress excitatory nerve conduction. The effect pathway is clear and easy to observe and analyze, serving as an ideal research tool different from nerve inhibiting toxins with other acting modes.
Low safety risk to mammals-It has weak toxicity toward human and other mammalian organisms. Laboratory operation poses fewer hidden dangers, bringing safer experimental conditions compared with highly venomous homologous toxins.
Excellent experimental applicability-It features fast onset and obvious drug effect response. It can be widely applied in neuropharmacology exploration and novel pesticide lead screening, with broader research and development value.
FAQ
Joro toxin (also known as JSTX) is a polyamine amide toxin purified from the venom of the Joro spider (Trichonephila clavata), a species native to Japan. Its main active component, JSTX-3, is a well-characterized natural product with strong neuroactivity. Chemically, it has a CAS number 112163-33-4, a molecular formula of C₂₇H₄₇N₇O₆, and a molecular weight of 565.7 g/mol.
JSTX acts as a selective, voltage-dependent open-channel blocker of AMPA/kainate-type glutamate receptors, especially those permeable to calcium. It binds to the receptor's ion channel pore, inhibiting the influx of sodium and calcium ions, which blocks excitatory neurotransmission and leads to rapid paralysis in invertebrates. It has no effect on resting membrane potential or inhibitory synaptic potentials, making it a highly specific research tool.
JSTX is widely used as a pharmacological probe in neuroscience research. It helps scientists study the structure and function of glutamate receptors, which are critical for learning, memory, and neurological disorders. It is also used in neurophysiology experiments to explore synaptic transmission and excitotoxicity mechanisms. Additionally, it serves as a lead compound for developing new insecticides targeting pest glutamate receptors.
JSTX is not toxic to humans under normal circumstances. The Joro spider's venom is mild, and its bite only causes minor local reactions like redness or swelling, similar to a bee sting. Purified Joro Toxin is for research use only and is not approved for human or veterinary applications. Due to its high specificity for invertebrate receptors, it poses negligible risk to human health when handled properly in a laboratory setting.
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