Difference between revisions of "Part:BBa K902079"
 
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<p>HBPS desulfinase (DszB), which is a monomeric enzyme that carries out the last step of the 4S desulfurization pathway. This step carries out the conversion of 2-hydroxybiphenyl-2-sulfinic acid (HBPS) to 2-hydroxybiphenyl, releasing the sulfur in the form of sulfite. Naturally, this enzyme has the lowest activity of all the desulfurization genes involved in the 4S pathway, and thus this step is the rate limiting step. Because of this, the sequence has been mutated Y63F to increase enzyme activity.</p>
 
<p>HBPS desulfinase (DszB), which is a monomeric enzyme that carries out the last step of the 4S desulfurization pathway. This step carries out the conversion of 2-hydroxybiphenyl-2-sulfinic acid (HBPS) to 2-hydroxybiphenyl, releasing the sulfur in the form of sulfite. Naturally, this enzyme has the lowest activity of all the desulfurization genes involved in the 4S pathway, and thus this step is the rate limiting step. Because of this, the sequence has been mutated Y63F to increase enzyme activity.</p>
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<p></html>[[Image:Ucalgary2012 DszBpathway figure.PNG|centre]]<html></p>
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Latest revision as of 23:34, 26 October 2012

PtetR/dszB/B0034/dszC

This part constitutively produces DszB and DszC under control of a tetR promoter.

DszC enzymes have been shown to catalyze the oxidation of dibenzothiophene (DBT)to dibenzothiophene-5-oxide (DBTO) in the first reaction and then from DBTO to DBT sulfoxide (DBTO2) in the second reaction, both in the presence of NADH, oxygen, FMN and flavin reductases.

Ucalgary2012pathforDszC.png

HBPS desulfinase (DszB), which is a monomeric enzyme that carries out the last step of the 4S desulfurization pathway. This step carries out the conversion of 2-hydroxybiphenyl-2-sulfinic acid (HBPS) to 2-hydroxybiphenyl, releasing the sulfur in the form of sulfite. Naturally, this enzyme has the lowest activity of all the desulfurization genes involved in the 4S pathway, and thus this step is the rate limiting step. Because of this, the sequence has been mutated Y63F to increase enzyme activity.

Ucalgary2012 DszBpathway figure.PNG


Sequence and Features


Assembly Compatibility:
  • 10
    COMPATIBLE WITH RFC[10]
  • 12
    INCOMPATIBLE WITH RFC[12]
    Illegal NheI site found at 1282
  • 21
    INCOMPATIBLE WITH RFC[21]
    Illegal BamHI site found at 506
    Illegal BamHI site found at 2086
    Illegal XhoI site found at 498
  • 23
    COMPATIBLE WITH RFC[23]
  • 25
    INCOMPATIBLE WITH RFC[25]
    Illegal NgoMIV site found at 213
  • 1000
    INCOMPATIBLE WITH RFC[1000]
    Illegal BsaI site found at 2236