BP

GO:0000184

nuclear-transcribed mRNA catabolic process, nonsense-mediated decay

The nonsense-mediated decay pathway for nuclear-transcribed mRNAs degrades mRNAs in which an amino-acid codon has changed to a nonsense codon; this prevents the translation of such mRNAs into truncated, and potentially harmful, proteins.

IMP

BP

GO:0000289

nuclear-transcribed mRNA poly(A) tail shortening

Shortening of the poly(A) tail of a nuclear-transcribed mRNA from full length to an oligo(A) length.

TAS

BP

GO:0007292

female gamete generation

Generation of the female gamete; specialised haploid cells produced by meiosis and along with a male gamete takes part in sexual reproduction.

TAS

BP

GO:0009451

RNA modification

The covalent alteration of one or more nucleotides within an RNA molecule to produce an RNA molecule with a sequence that differs from that coded genetically.

TAS

BP

GO:0043488

regulation of mRNA stability

Any process that modulates the propensity of mRNA molecules to degradation. Includes processes that both stabilize and destabilize mRNAs.

TAS

BP

GO:0090503

RNA phosphodiester bond hydrolysis, exonucleolytic

The chemical reactions and pathways involving the hydrolysis of terminal 3',5'-phosphodiester bonds in one or two strands of ribonucleotides.

IEA

CC

GO:0005634

nucleus

A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.

TAS

CC

GO:0005730

nucleolus

A small, dense body one or more of which are present in the nucleus of eukaryotic cells. It is rich in RNA and protein, is not bounded by a limiting membrane, and is not seen during mitosis. Its prime function is the transcription of the nucleolar DNA into 45S ribosomal-precursor RNA, the processing of this RNA into 5.8S, 18S, and 28S components of ribosomal RNA, and the association of these components with 5S RNA and proteins synthesized outside the nucleolus. This association results in the formation of ribonucleoprotein precursors; these pass into the cytoplasm and mature into the 40S and 60S subunits of the ribosome.

IEA

CC

GO:0005737

cytoplasm

All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

TAS

CC

GO:0005829

cytosol

The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

TAS

MF

GO:0000166

nucleotide binding

Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.

IEA

MF

GO:0003730

mRNA 3'-UTR binding

Interacting selectively and non-covalently with the 3' untranslated region of an mRNA molecule.

TAS

MF

GO:0004518

nuclease activity

Catalysis of the hydrolysis of ester linkages within nucleic acids.

TAS

MF

GO:0004535

poly(A)-specific ribonuclease activity

Catalysis of the exonucleolytic cleavage of poly(A) to 5'-AMP.

TAS

MF

GO:0005515

protein binding

Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).

IPI

MF

GO:0019901

protein kinase binding

Interacting selectively and non-covalently with a protein kinase, any enzyme that catalyzes the transfer of a phosphate group, usually from ATP, to a protein substrate.

IPI

MF

GO:0043169

cation binding

Interacting selectively and non-covalently with cations, charged atoms or groups of atoms with a net positive charge.

IMP

MF

GO:0044822

poly(A) RNA binding

Interacting non-covalently with a poly(A) RNA, a RNA molecule which has a tail of adenine bases.

IDA

MF

GO:0046872

metal ion binding

Interacting selectively and non-covalently with any metal ion.

IEA