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Now showing items 11-20 of 420
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Extracellular vesicles as an alternative copper-secretion mechanism in bacteria
(Elsevier, 2022)
Metal homeostasis is fundamental for optimal performance of cell metabolic pathways. Over the course of evolution, several systems emerged to warrant an intracellular metal equilibrium. When exposed to growth-challenging ...
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Photosynthesis by isolated chloroplasts XI. Co2 assimilation in a reconstituted chloroplast system
(American Society for Biochemistry and Molecular Biology, Inc., 1960)
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Transcription activation by NtcA and 2-oxoglutarate of three genes involved in heterocyst differentiation in the cyanobacterium Anabaena sp. strain PCC 7120
(American Society for Microbiology, 2008)
In Anabaena sp. strain PCC 7120, differentiation of heterocysts takes place in response to the external cue of combined nitrogen deprivation, allowing the organism to fix atmospheric nitrogen in oxic environments. NtcA, a ...
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Light-independent regulation of algal photoprotection by CO2 availability
(Springer Nature, 2023)
Photosynthetic algae have evolved mechanisms to cope with suboptimal light and CO2 conditions. When light energy exceeds CO2 fixation capacity, Chlamydomonas reinhardtii activates photoprotection, mediated by LHCSR1/3 and ...
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Site-directed Mutagenesis of Cytochromec 6 from Synechocystissp. PCC 6803
(Elsevier, 1999)
This paper reports the first site-directed mutagenesis analysis of any cytochrome c 6, a heme protein that performs the same function as the copper-protein plastocyanin in the electron transport chain of photosynthetic ...
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The Multitasker Protein: A Look at the Multiple Capabilities of NUMB
(Multidisciplinary Digital Publishing Institute (MDPI), 2023)
NUMB, a plasma membrane-associated protein originally described in Drosophila, is involved in determining cell function and fate during early stages of development. It is secreted asymmetrically in dividing cells, with one ...
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The structures of the PII proteins from the cyanobacteria Synechococcus sp. PCC 7942 and Synechocystis sp. PCC 6803
(International Union of Crystallography, 2003)
The PII proteins from the cyanobacteria Synechococcus sp. PCC 7942 and Synechocystis sp. PCC 6803 have been crystallized and high-resolution structures have been obtained using X-ray crystallography. The core of these ...
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Integrated functions among multiple starch synthases determine both amylopectin chain length and branch linkage location in Arabidopsis leaf starch
(Oxford University Press, 2011)
This study assessed the impact on starch metabolism in Arabidopsis leaves of simultaneously eliminating multiple soluble starch synthases (SS) from among SS1, SS2, and SS3. Double mutant ss1- ss2- or ss1- ss3- lines were ...
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Glutamine synthetase in legumes: recent advances in enzyme structure and functional genomics
(MDPI, 2012)
Glutamine synthetase (GS) is the key enzyme involved in the assimilation of ammonia derived either from nitrate reduction, N2 fixation, photorespiration or asparagine breakdown. A small gene family is encoding for different ...
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Characterization of SpPol4, a unique X-family DNA polymerase in Schizosaccharomyces pombe
(Oxford University Press, 2005)
As predicted by the amino acid sequence, the purified protein coded by Schizosaccharomyces pombe SPAC2F7.06c is a DNA polymerase (SpPol4) whose biochemical properties resemble those of other X family (PolX) members. ...