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Structural and functional diversity of caspase homologues in non-metazoan organisms

Caspases, the proteases involved in initiation and execution of metazoan programmed cell death, are only present in animals, while their structural homologues can be found in all domains of life, spanning from simple prokaryotes (orthocaspases) to yeast and plants (metacaspases). All members of this wide protease family contain the p20 domain, which harbours the catalytic dyad ...

The stress-induced SCP/HLIP family of small light-harvesting-like proteins (ScpABCDE) protects Photosystem II from photoinhibitory damages in the cyanobacterium Synechocystis sp. PCC 6803

Small CAB-like proteins (SCPs) are single-helix light-harvesting-like proteins found in all organisms performing oxygenic photosynthesis. We investigated the effect of growth in moderate salt stress on these stress-induced proteins in the cyanobacterium Synechocystis sp. PCC 6803 depleted of Photosystem I (PSI), which expresses SCPs constitutively, and compared these cells with a ...

Proteomic analysis of the phycobiliprotein antenna of the cryptophyte alga Guillardia theta cultured under different light intensities

and have the dataset identifiers PXD006301 and 10.6019/PXD006301. Cryptophyta; Phycobilin; Phycobiliprotein; Translation; TAT-pathway; Proteomics * Christiane Funk Photosynthesis is the process that

Presence of state transitions in the cryptophyte alga Guillardia theta

 Funk 1 Editor: Tracy Lawson 0 Institute of Microbiology, Centre Algatech, Laboratory of Photosynthesis , Opatovický Mlýn, Třeboň 379 81 , Czech Republic 1 Department of Chemistry, Umeå University

Synergy: A Web Resource for Exploring Gene Regulation in Synechocystis sp. PCC6803

Despite being a highly studied model organism, most genes of the cyanobacterium Synechocystis sp. PCC 6803 encode proteins with completely unknown function. To facilitate studies of gene regulation in Synechocystis, we have developed Synergy (, a web application integrating co-expression networks and regulatory motif analysis. Co-expression networks ...

Refolding and Enzyme Kinetic Studies on the Ferrochelatase of the Cyanobacterium Synechocystis sp. PCC 6803

Heme is a cofactor for proteins participating in many important cellular processes, including respiration, oxygen metabolism and oxygen binding. The key enzyme in the heme biosynthesis pathway is ferrochelatase (protohaem ferrolyase, EC, which catalyzes the insertion of ferrous iron into protoporphyrin IX. In higher plants, the ferrochelatase enzyme is localized not only ...

Degradation of PsbO by the Deg Protease HhoA Is Thioredoxin Dependent

Kieselbach 0 Christiane Funk 0 Frederik Bo rnke, Friedrich-Alexander-University Erlangen-Nurenberg, Germany 0 Department of Chemistry and Umea Plant Science Centre, Umea University , Umea , Sweden The

Arabidopsis plants grown in the field and climate chambers significantly differ in leaf morphology and photosystem components

Christiane Funk Wolfgang P Schrder Stefan Jansson 0 0 Umea Plant Science Centre, Department of Plant Physiology, Umea University , SE-901 87 Umea , Sweden Background: Plants exhibit phenotypic plasticity and

Protease gene families in Populus and Arabidopsis

Background Proteases play key roles in plants, maintaining strict protein quality control and degrading specific sets of proteins in response to diverse environmental and developmental stimuli. Similarities and differences between the proteases expressed in different species may give valuable insights into their physiological roles and evolution. Results We have performed a ...

A genomic approach to investigate developmental cell death in woody tissues of Populus trees

*, Maribel Garca Lorenzo, Bo Segerman*, Christiane Funk, Peter Nilsson, Stefan Jansson* and Hannele Tuominen* Correspondence: Hannele Tuominen. E-mail: 0 Department of Biochemistry, Umea University , SE-901