% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Schneidewind:864911, author = {Schneidewind, Judith and Krause, Frank and Bocola, Marco and Stadler, Andreas Maximilian and Davari, Mehdi D. and Schwaneberg, Ulrich and Jaeger, Karl-Erich and Krauss, Ulrich}, title = {{C}onsensus model of a cyanobacterial light-dependent protochlorophyllide oxidoreductase in its pigment-free apo-form and photoactive ternary complex}, journal = {Communications biology}, volume = {2}, number = {1}, issn = {2399-3642}, address = {London}, publisher = {Springer Nature}, reportid = {FZJ-2019-04514}, pages = {351}, year = {2019}, abstract = {Photosynthetic organisms employ two different enzymes for the reduction of the C17 = C18 double bond of protochlorophyllide (Pchlide), yielding the chlorophyll precursor chlorophyllide. First, a nitrogenase-like, light-independent (dark-operative) Pchlide oxidoreductase and secondly, a light-dependent Pchlide oxidoreductase (LPOR). For the latter enzyme, despite decades of research, no structural information is available. Here, we use protein structure modelling, molecular dynamics (MD) simulations combined with multi-wavelength analytical ultracentrifugation (MWA-AUC) and small angle X-ray scattering (SAXS) experiments to derive a consensus model of the LPOR apoprotein and the substrate/cofactor/LPOR ternary complex. MWA-AUC and SAXS experiments independently demonstrate that the apoprotein is monomeric, while ternary complex formation induces dimerization. SAXS-guided modelling studies provide a full-length model of the apoprotein and suggest a tentative mode of dimerization for the LPOR ternary complex, supported by published cross-link constraints. Our study provides a first impression of the LPOR structural organization.}, cin = {IBG-1 / IMET / JCNS-1 / ICS-1}, ddc = {570}, cid = {I:(DE-Juel1)IBG-1-20101118 / I:(DE-Juel1)IMET-20090612 / I:(DE-Juel1)JCNS-1-20110106 / I:(DE-Juel1)ICS-1-20110106}, pnm = {581 - Biotechnology (POF3-581)}, pid = {G:(DE-HGF)POF3-581}, typ = {PUB:(DE-HGF)16}, pubmed = {pmid:31583285}, UT = {WOS:000488309300001}, doi = {10.1038/s42003-019-0590-4}, url = {https://juser.fz-juelich.de/record/864911}, }