22848 COG4251
Thalassiosira pseudonana

Interacting selectively and non-covalently with any nucleic acid.

Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.

Combining with incidental electromagnetic radiation, particularly visible light, and transmitting the signal across the membrane by activating an associated G-protein; promotes the exchange of GDP for GTP on the alpha subunit of a heterotrimeric G-protein complex.

Responds to a phosphorelay sensor to initiate a change in cell state or activity. The activity of the response regulator is regulated by transfer of a phosphate from a histidine residue in the sensor, to an aspartate residue in the response regulator. Many but not all response regulators act as transcriptional regulators to elicit a response.

A conserved series of molecular signals found in prokaryotes and eukaryotes; involves autophosphorylation of a histidine kinase and the transfer of the phosphate group to an aspartate that then acts as a phospho-donor to response regulator proteins.

Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).

Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.

Catalysis of the phosphorylation of a histidine residue in response to detection of an extracellular signal such as a chemical ligand or change in environment, to initiate a change in cell state or activity. The two-component sensor is a histidine kinase that autophosphorylates a histidine residue in its active site. The phosphate is then transferred to an aspartate residue in a downstream response regulator, to trigger a response.

The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.

Double layer of lipid molecules that encloses all cells, and, in eukaryotes, many organelles; may be a single or double lipid bilayer; also includes associated proteins.

The process of introducing a phosphate group into a molecule, usually with the formation of a phosphoric ester, a phosphoric anhydride or a phosphoric amide.

Catalysis of the transfer of a phosphorus-containing group from one compound (donor) to another (acceptor).

The process of introducing a phosphate group on to a protein.

Catalysis of the transfer of a phosphate group, usually from ATP, to a substrate molecule.

Catalysis of the reaction: ATP + protein L-histidine = ADP + protein phospho-L-histidine.

Catalysis of the transfer of a phosphorus-containing group from one compound (donor) to a nitrogenous group (acceptor).

Catalysis of the reaction: histone L-arginine + ATP = histone N(omega)-phospho-L-arginine + ADP + 2 H(+).