polarity specification of anterior/posterior axis

The processes resulting in the establishment of polarity along the anterior/posterior axis.

The directed movement of nutrients into a cell or organelle.

The enzymatic modification of the chemical structure of specific sites in tRNA.

The breakdown into simpler components of RNA, ribonucleic acid, one of the two main type of nucleic acid, consisting of a long, unbranched macromolecule formed from ribonucleotides joined in 3',5'-phosphodiester linkage.

The breakdown into simpler components of mRNA, messenger RNA, which is responsible for carrying the coded genetic 'message', transcribed from DNA, to sites of protein assembly at the ribosomes.

establishment and maintenance of RNA localization

The processes by which RNA is transported to, or maintained in, a specific location.

The import of RNA from the cytoplasm to the nucleus.

The directed movement of RNA from the nucleus to the cytoplasm.

The directed movement of mRNA from the nucleus to the cytoplasm.

The directed movement of rRNA from the nucleus to the cytoplasm.

The directed movement of snRNA from the nucleus to the cytoplasm.

The directed movement of tRNA from the nucleus to the cytoplasm.

guanine, xanthine and their nucleoside salvage

Any process that generates inosine, hypoxanthine riboside, from derivatives of it without de novo synthesis.

The breakdown into simpler components of a purine nucleotide, a compound consisting of nucleoside (a purine base linked to a deoxyribose or ribose sugar) esterified with a phosphate moiety at either the 3' or 5'-hydroxyl group of its glycose moiety.

The breakdown into simpler components of AMP, adenosine monophosphate.

The breakdown into simpler components of the nucleotide cAMP (cyclic AMP, adenosine 3',5'-cyclophosphate).

The chemical reactions involving a purine nucleotide, a compound consisting of nucleoside (a purine base linked to a deoxyribose or ribose sugar) esterified with a phosphate moiety at either the 3' or 5'-hydroxyl group of its glycose moiety.