The process of assisting in the folding of a nascent peptide chain into its correct tertiary structure.

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

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

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

The aggregation, arrangement and bonding together of a set of components to form a steroid hormone receptor complex, an intracellular receptor that binds steroid hormones. The complex is often a dimer, and forms after the steroid has bound the receptor.

The proteolytic removal of a signal peptide from a protein during or after transport to a specific location in the cell.

A complex formed by a recombinase, a regulatory protein, and the DNA sequences bound by each protein; catalyzes a reversible site-specific recombination reaction that results in the alternate expression of one or more genes in various contexts.

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

A complex containing a RecQ family helicase and a topoisomerase III homologue (a member of the topoisomerase type IA subfamily); may also include one or more additional proteins; conserved from E. coli to human.

Any process that stops, prevents, or reduces the frequency, rate or extent of kinase activity, the catalysis of the transfer of a phosphate group, usually from ATP, to a substrate molecule.

Binding to a hexon, the major protein component of the icosahedral capsid of an adenovirus.

The process in which the cytoplasm of the outermost cells of the vertebrate epidermis is replaced by keratin. Keratinization occurs in the stratum corneum, feathers, hair, claws, nails, hooves, and horns.

The conversion of a primary mRNA transcript containing more than one complete protein-coding region into individual mature mRNA molecules.

Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a methotrexate stimulus. Methotrexate is 4-amino-10-methylformic acid, a folic acid analogue that is a potent competitive inhibitor of dihydrofolate reductase.

A ribonucleoprotein complex containing a box C/D type RNA that can carry out ribose-2'-O-methylation of target RNAs. Box C/D type RNAs are widespread in eukaryotes and in Archaea, suggesting that an RNA-based guide mechanism for directing specific RNA 2'-O-ribose methylations was present in the common ancestor of Archaea and Eukarya.

A box H/ACA RNP complex that is located in the nucleolus.

A ribonucleoprotein complex that contains an RNA of the box H/ACA type and the four core proteins dyskerin, NOP10, NHP2, and GAR1 (human protein nomenclature). RNA pseudouridylation (isomerization of uridine to pseudouridine) is the major, and most likely the ancestral, function of H/ACA RNPs. Pseudouridylation targets include both large and small ribosomal RNAs (rRNAs), and small nuclear RNA (U2 snRNA). In addition to these catalytic H/ACA RNPs, a less abundant but more diverse class of structural H/ACA RNPs exists, which does not have pseudouridylation activity. These include the vertebrate telomerase RNP complex.