oxidoreductase activity, acting on NADH or NADPH, with oxygen as acceptor

Catalysis of an oxidation-reduction (redox) reaction in which NADH or NADPH acts as a hydrogen or electron donor and reduces an oxygen molecule.

Catalysis of the addition of an acetyl group to a histone, specific for histones H3 and H4.

The specialized nuclear and cell division in which a single diploid cell undergoes two nuclear divisions following a single round of DNA replication in order to produce four daughter cells that contain half the number of chromosomes as the diploid cell. Meiosis occurs during the formation of gametes from diploid organisms and at the beginning of haplophase in those organisms that alternate between diploid and haploid generations.

Catalysis of the hydrolysis of acetyl groups from histones, proteins complexed to DNA in chromatin and chromosomes.

Catalysis of the reaction: H+(out) + drug(in) = H+(in) + drug(out).

Progression through the first phase of meiosis, in which cells divide and homologous chromosomes are paired and segregated from each other, producing two daughter cells.

Catalysis of the reaction: holocytochrome c = apocytochrome c + heme.

The process by which replicated homologous chromosomes are physically separated into two sets during mitosis. Each replicated chromosome, composed of two sister chromatids, aligns at the cell equator, paired with its homologous partner. One homolog of each morphologic type goes into each of the resulting chromosome sets.

homologous chromosome pairing at meiosis

The side by side pairing and physical juxtaposition of homologous chromosomes at the metaphase plate.

The membrane surrounding a synaptic vesicle.

A microtubule-based process that occurs only during M phase of the cell cycle.

regulation of synaptic growth at neuromuscular junction

Any process that modulates the frequency, rate or extent of synaptic growth at neuromuscular junctions.

The process by which antigen-presenting cells express antigen (protein/peptide/lipid) on their cell surface in a form recognizable by lymphocytes.