Silke von Horsten
University of Marburg
Hydrogen bondBiophysicsIsomerizationImportinCryptochromeKineticsPhotolyaseHydrogen–deuterium exchangeChemistryNLSChromophoreChlamydomonas reinhardtiiStructural communicationBifunctionalNucleusResonance Raman spectroscopyPhytochrome APhytochrome BLight controlActin cytoskeletonLight drivenPhototropinDNA binding siteNuclear localization sequenceDNADouble bondFar-redStereochemistryFlavoproteinBiologyPhytochromeCell biology
4Publications
4H-index
44Citations
Publications 6
Newest
#1Silke von Horsten (University of Marburg)H-Index: 4
#2Marie-Luise Lippert (University of Marburg)H-Index: 1
Last. Johann Heider (University of Marburg)H-Index: 54
view all 7 authors...
Anaerobic toluene degradation proceeds by fumarate addition to produce (R)-benzylsuccinate as first intermediate, which is further degraded via β-oxidation by five enzymes encoded in the conserved bbs operon. This study characterizes two enzymes of this pathway, (E)-benzylidenesuccinyl-CoA hydratase (BbsH), and (S,R)-2-(α-hydroxybenzyl)succinyl-CoA dehydrogenase (BbsCD) from Thauera aromatica. BbsH, a member of the enoyl-CoA hydratase family, converts (E)-benzylidenesuccinyl-CoA to 2-(α-hydroxyb...
Source
Phytochrome activity is not only controlled by light but also by post-translational modifications, e. g. phosphorylation. One of the phosphatases responsible for plant phytochrome dephospho-rylation and thereby increased activity is the phytochrome-associated protein phosphatase 5 (PAPP5). We show that PAPP5 recognizes phospho-site mimicking mutants of phytochrome B, when being activated by arachidonic acid (AA). Addition of AA to PAPP5 decreases the -helical content as tracked by CD-spectrosco...
Source
#1Sophie Franz-BadurH-Index: 2
#2Alexander PennerH-Index: 1
Last. Lars-Oliver EssenH-Index: 54
view all 6 authors...
Cryptochromes (CRYs) are an ubiquitously occurring class of photoreceptors, which are important for regulating the circadian rhythm of animals via a time-delayed transcription-translation feedback loop (TTFL). Due to their protein architecture and common FAD chromophore, they belong to the same superfamily as photolyases (PHLs), an enzyme class that repairs UV-induced DNA lesions upon blue light absorption. Apart from their different functions the only prominent structural difference between CRY...
Source
#1Hanna HelizonH-Index: 2
#2Jutta Rösler-Dalton (University of California, Berkeley)H-Index: 1
Last. Mathias ZeidlerH-Index: 13
view all 6 authors...
: Phytochrome A (phyA) is a red and far-red (FR) sensing photoreceptor regulating plant growth and development. Its biologically active FR-absorbing form Pfr translocates into the nucleus and subsequently regulates gene expression. Two transport facilitators, FR elongated hypocotyl 1 (FHY1) and FHY1-like (FHL), are crucial for its cytoplasmic-nuclear translocation. FHY1 interacts preferentially with activated phyA (Pfr) in assays with recombinant phyA and FHY1 and in vivo. Nuclear translocation ...
Source
#1Francisco Velazquez Escobar (Technical University of Berlin)H-Index: 15
#2David Buhrke (Technical University of Berlin)H-Index: 10
Last. Peter Hildebrandt (Technical University of Berlin)H-Index: 75
view all 8 authors...
The N-terminal extension (NTE) of plant phytochromes has been suggested to play a functional role in signaling photoinduced structural changes. Here, we use resonance Raman spectroscopy to study the effect of the NTE on the chromophore structure of B-type phytochromes from two evolutionarily distant plants. NTE deletion seems to have no effect on the chromophore in the inactive Pr state, but alters the torsion of the C-D ring methine bridge and the surrounding hydrogen bonding network in the phy...
Source
#1Silke von HorstenH-Index: 4
#2Simon StraßH-Index: 2
Last. Lars-Oliver Essen (University of Marburg)H-Index: 54
view all 9 authors...
Mapping light-driven conformational changes within the photosensory module of plant phytochrome B
Source
This website uses cookies.
We use cookies to improve your online experience. By continuing to use our website we assume you agree to the placement of these cookies.
To learn more, you can find in our Privacy Policy.