The intracellular accumulation of inorganic carbon (Ci) by microalgae and cyanobacteria
under ambient atmospheric CO2 levels was first documented in the 80s of the 20th Century …

Members of the PII superfamily are versatile, multitasking signaling proteins ubiquitously
found in all domains of life. They adeptly monitor and synchronize the cell's carbon, nitrogen …

Carbon (C) and nitrogen (N) metabolisms are tightly integrated to allow proper plant growth
and development. Photosynthesis is dependent on N invested in chlorophylls, enzymes, and …

The looming climate crisis has prompted an ever‐growing interest in cyanobacteria due to
their potential as sustainable production platforms for the synthesis of energy carriers and …

The PII superfamily consists of widespread signal transduction proteins found in all domains
of life. In addition to canonical PII proteins involved in C/N sensing, structurally similar PII …

Cyanobacteria utilize CO2 and HCO3− as inorganic carbon (Ci) sources. In low Ci, like in
ambient air, cyanobacteria efficiently collect Ci using a carbon concentrating mechanism …

An increasing number of small proteins has been identified in the genomes of well‐
annotated organisms, including the model cyanobacterium Synechocystis sp. PCC 6803 …

Second messengers are a fundamental category of small molecules and ions that are
involved in the regulation of many processes in all domains of life. Here we focus on …

SbtB is a PII-like protein that regulates the carbon-concentrating mechanism (CCM) in
cyanobacteria. SbtB proteins can bind many adenyl nucleotides and possess a …

Abstract Background Information Aquaporins are H2O‐permeable membrane protein pores.
However, some aquaporins are also permeable to other substances such as CO2. In higher …