HIV-1 Tat Protein
Origin: Human Immunodeficiency Virus (HIV)
Host: Escherichia coli (E. coli)
Recombinant
> 90 %
WB, SDS
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- Target See all HIV-1 Tat Proteins
- HIV-1 Tat
- Protein Type
- Recombinant
- Origin
- Human Immunodeficiency Virus (HIV)
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Source
- Escherichia coli (E. coli)
- Application
- Western Blotting (WB), SDS-PAGE (SDS)
- Purity
- > 90 %
- Top Product
- Discover our top product HIV-1 Tat Protein
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- Application Notes
- Optimal working dilution should be determined by the investigator.
- Restrictions
- For Research Use only
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- Format
- Lyophilized
- Reconstitution
- The protein should be reconstituted in apirogenic sterile water or 1X PBS.
- Buffer
- 0.1 % glycerol
- Storage
- 4 °C
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- Target
- HIV-1 Tat
- Alternative Name
- HIV1 Tat (HIV-1 Tat Products)
- Target Type
- Viral Protein
- Background
- The redox state of cysteine-rich region of HIV tat protein is known to play a crucial role in tat biological activity. The cysteine-rich region, encompassing seven cysteine residues, is highly conserved among the different HIV-1 strains and isolates. Its redox state is known to be important for protein function and activity. In particular, variation of the tat cysteine motif known as "cysteine 30-cysteine 31" (C30C31) is associated with clade-specific tat neurotoxicity. Formation of tat homodimers also depends on the oxidation state of the protein, as dimerization requires metal ions binding to free sulphydryl groups present in the cysteine region. In the presence of oxygen and in absence of reducing agents, tat protein rapidly oxidises forming intra-molecular disulfide bonds which prevent the interaction with metal ions. Further, oxidation induces the formation of inter-molecular disulfide bonds causing tat multimerization and aggregation. Due to these effects, oxidation hampers or abrogates tat biological activity.
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