A collagen homotrimer of alpha1(XXIII) chains; type XXIII collagen triple helices span the plasma membrane.

A collagen homotrimer of alpha1(XXI) chains; type XXI collagen triple helices found in the extracellular matrix component of blood vessel walls and in the cytoplasm of cultured human aortic smooth muscle.

Catalysis of the reaction: 4-aminobutanoate + pyruvate = succinate semialdehyde + alanine.

Catalysis of the reaction: 4-aminobutanoate + amino group acceptor = succinate semialdehyde + amino acid.

A protein complex that forms a subcomplex of the 90S preribosome and can interact directly with the 5' External Transcribed Spacer (ETS) of the full length pre-rRNA transcript. In S. cerevisiae, it sediments at 25-30 S and is composed of Pwp2p, Dip2p, Utp21p, Utp13p, Utp18p, and Utp6p.

Catalysis of the reaction: 4-aminobutanoate + 2-oxoglutarate = succinate semialdehyde + L-glutamate.

A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a lipid particle.

The non-covalent aggregation and arrangement of proteins and lipids to form a high-density lipoprotein particle.

A collagen homotrimer of alpha1(XIX) chains; type XIX collagen triple helices localize to basement membrane zones in differentiating muscle cells.

Any collagen timer that is part of a basement membrane.

A collagen homotrimer of alpha1(XX) chains.

The process in which a low-density lipoprotein particle is removed from the blood via receptor-mediated endocytosis and its constituent parts degraded.

A protein complex consisting of Atg1 (or Atg1 homologs e.g. ULK1, ULK2 in mammals) and Atg13 along with other proteins that regulate its function (e.g. Atg17 in yeast or RB1CC1(FIP200) in mammals). This complex has serine/threonine protein kinase activity and is involved in autophagosome formation.

The process in which a high-density lipoprotein particle is removed from the blood via receptor-mediated endocytosis and its constituent parts degraded.

A protein complex involved in septin ring formation during mitosis. In Saccharomyces cerevisiae it consists of BNI5, CDC3, CDC10, CDC11, CDC12, GIN4, NAP1 and SHS1. At least 2 GIN4 molecules are involved.

Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an insulin-like growth factor stimulus.

Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a peptide hormone stimulus. A peptide hormone is any of a class of peptides that are secreted into the blood stream and have endocrine functions in living animals.

The process in which a chylomicron remnant is removed from the blood via receptor-mediated endocytosis into liver cells and its constituent parts degraded.

The process in which a triglyceride-rich lipoprotein particle is removed from the blood via receptor-mediated endocytosis and its constituent parts degraded.

A protein complex that consists of a phospho relay component and a MAPK cascade component. The complex is involved in signaling oxidative stress and osmostress.