Difference between revisions of "Part:BBa K1189025"
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<partinfo>BBa_K1189025 short</partinfo> | <partinfo>BBa_K1189025 short</partinfo> | ||
| − | <p>This heavy ferritin chain comes from humans. This part along with light ferritin (<partinfo>BBa_K1189024</partinfo>), form the ferritin nanoparticle, an iron-storage particle made up of 24 subunits. The formed nanoparticle is highly robust, remaining stable at extreme pHs and temperatures. The difference between light ferritin is that this chain contains a ferroxidase centre. | + | <p>This heavy ferritin chain comes from humans. This part along with light ferritin (<partinfo>BBa_K1189024</partinfo>), form the ferritin nanoparticle, an iron-storage particle made up of 24 subunits. The formed nanoparticle is highly robust, remaining stable at extreme pHs and temperatures. The difference between light ferritin is that this chain contains a ferroxidase centre. Protein domains which orient toward the core of ferritin molecules cause the oxidation of intracellular iron from Fe^2+ to Fe^3+ to initiate formation of a ferrihydrite core. |
</p> | </p> | ||
| + | |||
| + | <figure> | ||
| + | <img src="https://static.igem.org/mediawiki/2013/1/18/UCalgary2013TRFerritinrender2png.png" alt="Ferritin" width="300" height="300"> | ||
| + | <figcaption> | ||
| + | <p><b>Figure 1.</b> Ribbon visualization of a fully assembled ferritin protein.</p> | ||
| + | </figcaption> | ||
| + | </figure> | ||
| + | |||
<p> | <p> | ||
This nanoparticle can also be used as a reporter when the iron core is modified with potassium ferrocyanide to form Prussian Blue. The Prussian Blue ferritin can then act as a peroxidase mimic, similar to horseradish peroxidase, resulting in colour changes in the presence of hydrogen peroxide, and TMB or ABTS. | This nanoparticle can also be used as a reporter when the iron core is modified with potassium ferrocyanide to form Prussian Blue. The Prussian Blue ferritin can then act as a peroxidase mimic, similar to horseradish peroxidase, resulting in colour changes in the presence of hydrogen peroxide, and TMB or ABTS. | ||
Revision as of 11:16, 28 September 2013
Heavy chain human ferritin
This heavy ferritin chain comes from humans. This part along with light ferritin (BBa_K1189024), form the ferritin nanoparticle, an iron-storage particle made up of 24 subunits. The formed nanoparticle is highly robust, remaining stable at extreme pHs and temperatures. The difference between light ferritin is that this chain contains a ferroxidase centre. Protein domains which orient toward the core of ferritin molecules cause the oxidation of intracellular iron from Fe^2+ to Fe^3+ to initiate formation of a ferrihydrite core.
<figure>
<img src="
" alt="Ferritin" width="300" height="300">
<figcaption>
Figure 1. Ribbon visualization of a fully assembled ferritin protein.
</figcaption> </figure>
This nanoparticle can also be used as a reporter when the iron core is modified with potassium ferrocyanide to form Prussian Blue. The Prussian Blue ferritin can then act as a peroxidase mimic, similar to horseradish peroxidase, resulting in colour changes in the presence of hydrogen peroxide, and TMB or ABTS.
This part was primarily used to construct BBa_K1189019 in order to allow us to express and purify the protein.
Sequence and Features
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21COMPATIBLE WITH RFC[21]
- 23COMPATIBLE WITH RFC[23]
- 25COMPATIBLE WITH RFC[25]
- 1000COMPATIBLE WITH RFC[1000]