Mareike Busker

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The complete structure of the assembled domains of nitric oxide-sensitive guanylate cyclase (NOsGC) remains to be determined. It is also unknown how binding of NO to heme in guanylate cyclase is communicated to the catalytic domain. In the current study the conformational change of guanylate cyclase on activation by NO was studied using FRET. Endogenous(More)
Heme oxygenase (HO) degrades heme in concert with NADPH cytochrome P450 reductase (CPR) which donates electrons to the reaction. Earlier studies reveal the importance of the hydrophobic carboxy-terminus of HO-1 for anchorage to the endoplasmic reticulum (ER) which facilitates the interaction with CPR. In addition, HO-1 has been shown to undergo regulated(More)
BACKGROUND Nitric oxide sensitive guanylyl cyclase (NOsGC) is a heterodimeric enzyme formed by an α- and a β₁-subunit. A splice variant (C-α₁) of the α₁-subunit, lacking at least the first 236 amino acids has been described by Sharina et al. 2008 and has been shown to be expressed in differentiating human embryonic cells. Wagner et al. 2005 have shown that(More)
Background NO-sensitive guanylyl cyclases (NO-GC’s) that catalyze the reaction of GTP to the second messenger molecule cGMP are heterodimeric enzymes consisting of an a and a b1 subunit. The two prevalent isoforms in humans (a1/b1, a2/b1) are time-tested targets for drugs that release nitric oxide (NO) and new compounds that either sensitize the enzyme for(More)
Nitric oxide-sensitive guanylyl cyclase is a heterodimeric enzyme consisting of an α and a β subunit. Two different α subunits (α1 and α2) give rise to two heterodimeric enzymes α1/β1 and α2/β1. Both coexist in a wide range of tissues including blood vessels and the lung, but expression of the α2/β1 form is generally much lower and approaches levels similar(More)
Background: Nitric oxide sensitive guanylyl cyclase (NOsGC) is a heterodimeric enzyme formed by an aand a b1-subunit. A splice variant (C-a1) of the a1-subunit, lacking at least the first 236 amino acids has been described by Sharina et al. 2008 and has been shown to be expressed in differentiating human embryonic cells. Wagner et al. 2005 have shown that(More)
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