The directed movement of proteins in a cell, including the movement of proteins between specific compartments or structures within a cell, such as organelles of a eukaryotic cell.

The release of intracellular molecules (e.g. hormones, matrix proteins) contained within a membrane-bounded vesicle by fusion of the vesicle with the plasma membrane of a cell. This is the process whereby most molecules are secreted from eukaryotic cells.

endoplasmic reticulum to Golgi transport

The directed movement of substances from the endoplasmic reticulum (ER) to the Golgi, mediated by COP II vesicles. Small COP II coated vesicles form from the ER and then fuse directly with the cis-Golgi. Larger structures are transported along microtubules to the cis-Golgi.

Interacting selectively with a toxin, a poisonous substance that causes damage to biological systems. Toxins are differentiated from simple chemical poisons and vegetable alkaloids by their high molecular weight and antigenicity (they elicit an antibody response).

Interacting selectively with a protein N-terminus, the end of any peptide chain at which the 2-amino (or 2-imino) function of a constituent amino acid is not attached in peptide linkage to another amino-acid residue.

Catalysis of the reaction: nucleoside(out) + Na+(out) = nucleoside(in) + Na+(in).

Catalysis of the stereospecific transfer of a substrate across a biological membrane.

Catalysis of the reaction: amino acid(out) + cation(out) = amino acid(in) + cation(in).

The series of events by which a sound stimulus is received and converted into a molecular signal.

The series of events by which a chemical stimulus is received and converted into a molecular signal.

The regulation of the levels, transport, and metabolism of ions within a cell or between a cell and its external environment.

The regulation of the levels, transport, and metabolism of calcium ions within a cell or between a cell and its external environment.

Any process involving glucose that modulates the frequency, rate or extent or transcription.