OBSOLETE. (Was not defined before being made obsolete).

A protein complex that forms a subcomplex of the 90S preribosome and is required for the subsequent assembly of the rest of the preribosome. In S. cerevisiae, it is composed of Utp5p, Utp4p, Nan1p, Utp8p, Utp9p, Utp10 and Utp15p.

Catalysis of the reaction: acetyl-CoA + histone H4 = CoA + acetyl-histone H4.

A protein complex that forms a subcomplex of the 90S preribosome. In S. cerevisiae, it is composed of Rrp7p, Utp22p, Ckb1p, Cka1p, Ckb2p and Cka2p.

The process aimed at the progression of a microsporocyte cell over time, from initial commitment of the cell to a specific fate, to the fully functional differentiated cell. A microsporocyte is a diploid (2n) cell that undergoes meiosis and forms four haploid (1n) microspores; also called microspore mother cell and, in seed plants, pollen mother cell.

The process in which a relatively unspecialized floral cell acquires the specialized features of a sporocyte. Sporocytes are the haploid spores of angiosperms. Once formed, they undergo meiotic divisions to form microspores and megaspores.

Any process resulting in the physical partitioning and separation of an epidermal cell, any of the cells making up the epidermis, into daughter cells.

Isoenergetic transfer of ubiquitin from one protein to an existing ubiquitin chain via the reaction X-ubiquitin + Y-ubiquitin -> Y-ubiquitin-ubiquitin + X, where both the X-ubiquitin and Y-ubiquitin-ubiquitin linkages are thioester bonds between the C-terminal glycine of ubiquitin and a sulfhydryl side group of a cysteine residue.

Catalysis of the transfer of ubiquitin to a substrate protein via the reaction X-ubiquitin + S -> X + S-ubiquitin, where X is either an E2 or E3 enzyme, the X-ubiquitin linkage is a thioester bond, and the S-ubiquitin linkage is an amide bond: an isopeptide bond between the C-terminal glycine of ubiquitin and the epsilon-amino group of lysine residues in the substrate or, in the linear extension of ubiquitin chains, a peptide bond the between the C-terminal glycine and N-terminal methionine of ubiquitin residues.

Any process that modulates the frequency, rate or extent of lipoprotein oxidation.

Any process that modulates the frequency, rate or extent of the chemical reactions and pathways involving lipoproteins, any conjugated, water-soluble protein in which the nonprotein group consists of a lipid or lipids.

The movement of substances between cells via plasmodesmata. Plasmodesmata is a fine cytoplasmic channel, found in all higher plants, that connects the cytoplasm of one cell to that of an adjacent cell.

The movement of substances between cells.

Any process that stops, prevents, or reduces the frequency, rate or extent of lipoprotein oxidation.

Any process that stops, prevents, or reduces the frequency, rate or extent of the chemical reactions and pathways involving lipoproteins, any conjugated, water-soluble protein in which the nonprotein group consists of a lipid or lipids.

The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds that is mediated by the proteasome.

The hydrolysis of a peptide bond or bonds within a protein as part of the chemical reactions and pathways resulting in the breakdown of a protein by individual cells.

The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds that is mediated by the proteasome but do not involve ubiquitin.

The modification of a lipid or protein within a plasma lipoprotein particle by oxidation of the lipid or one or more amino acids.