268460 PolY superfamily
Thalassiosira pseudonana

The process of restoring DNA after damage. Genomes are subject to damage by chemical and physical agents in the environment (e.g. UV and ionizing radiations, chemical mutagens, fungal and bacterial toxins, etc.) and by free radicals or alkylating agents endogenously generated in metabolism. DNA is also damaged because of errors during its replication. A variety of different DNA repair pathways have been reported that include direct reversal, base excision repair, nucleotide excision repair, photoreactivation, bypass, double-strand break repair pathway, and mismatch repair pathway.

The living contents of a cell; the matter contained within (but not including) the plasma membrane, usually taken to exclude large vacuoles and masses of secretory or ingested material. In eukaryotes it includes the nucleus and cytoplasm.

Catalysis of the reaction: deoxynucleoside triphosphate + DNA(n) = diphosphate + DNA(n+1). Catalyzes extension of the 3'- end of a DNA strand by one deoxynucleotide at a time using an internal RNA template that encodes the telomeric repeat sequence.

Catalysis of the reaction: NTP + H2O = NDP + phosphate, to drive the unwinding of a RNA helix.

Catalysis of the synthesis of a short RNA primer on a DNA template, providing a free 3'-OH that can be extended by DNA-directed DNA polymerases. Catalyzed by a DNA-directed RNA polymerase that forms a complex with alpha DNA polymerase.

Catalysis of the transfer of an adenylyl group from an adenosine nucleotide (ATP or ADP) to sulfate, forming adenylylsulfate.

Catalysis of the posttranscriptional addition of a guanyl residue to the 5' end of an RNA molecule.

Catalysis of the posttranscriptional addition of a guanyl residue to the 5' end of a tRNA molecule; observed for His tRNAs.

NA

Catalysis of the transfer of a phosphate group from GTP or GDP to a mannose molecule.

Catalysis of the transfer of a nucleotidyl group to a reactant.

Catalysis of the reaction: alpha-D-galactose 1-phosphate + UTP = diphosphate + UDP-D-galactose.