Tau Peptide (275-305) (Repeat 2 domain)
Based on 1 Customer Validation
Tau Peptide (275-305) (Repeat 2 domain) is the Alzheimer's Tau fragment R2, corresponding to the second repeat unit of the microtubule-binding domain, which is believed to be pivotal to the biochemical properties of full tau protein. Tau Peptide (275-305) specifically coordinates with group IIB metal ions (Zn²⁺, Cd²⁺, Hg²⁺), which can induce their conformational changes and significantly promote their pathological accumulation. Tau Peptide (275-305) can be used to study the role of heavy metals in neurodegenerative diseases.
For research use only. We do not sell to patients.
- Purity: 98.83%
- CAS No.: 330456-25-2
- Formula: C139H239N43O45S
- Molecular Weight:3264.71
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Storage:
Sealed storage, away from moisture.
Powder -80°C, 2 years , -20°C, 1 year* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Biological Activity
Chemical Information
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CAS No. 330456-25-2
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Appearance Solid
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Molecular Weight 3264.71
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Formula C139H239N43O45S
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Color White to off-white
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Sequence
Val-Gln-Ile-Ile-Asn-Lys-Lys-Leu-Asp-Leu-Ser-Asn-Val-Gln-Ser-Lys-Cys-Gly-Ser-Lys-Asp-Asn-Ile-Lys-His-Val-Pro-Gly-Gly-Gly-Ser
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Sequence Shortening
VQIINKKLDLSNVQSKCGSKDNIKHVPGGGS
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Sealed storage, away from moisture
Powder -80°C 2 years -20°C 1 year * In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Solvent & Solubility
H2O : ≥ 25 mg/mL (7.66 mM)
DMSO : 12.5 mg/mL (3.83 mM; adjust pH to 3 with 1 M HCl; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
* "≥" means soluble, but saturation unknown.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Purity & Documentation
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Data Sheet (269 KB)
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SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
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Handling Instructions (2659 KB)
References
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO / H2O | 1 mM | 0.3063 mL | 1.5315 mL | 3.0631 mL | 7.6576 mL |
| H2O | 5 mM | 0.0613 mL | 0.3063 mL | 0.6126 mL | 1.5315 mL |
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.