CYSTINYL AMINOPEPTIDASE Meaning and
Definition
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Cystinyl aminopeptidase, commonly abbreviated as cystAP, is an enzyme that belongs to the family of metalloexopeptidases. It is primarily involved in the breakdown of proteins, specifically acting as an aminopeptidase that cleaves amino acids from the N-terminal end of peptide chains. This enzyme is unique as it exhibits remarkable specificity toward cysteine residues, hydrolyzing amino acids that are adjacent to a cysteine residue in a given peptide.
Cystinyl aminopeptidase plays a crucial role in various biological processes, including protein degradation, regulation of peptide hormone activity, and immune response modulation. By selectively removing amino acids from the N-terminus, cystAP assists in the degradation and recycling of intracellular and extracellular proteins, maintaining cellular homeostasis.
In addition, this enzyme has been found to play a role in the regulation of peptide hormone activity, particularly in the inactivation of certain neuropeptides. Cystinyl aminopeptidase can cleave specific amino acids from peptide hormones, thus altering their biological activity and duration of action.
Moreover, cystAP has been implicated in immune response modulation, specifically in the activation and regulation of immune cells. It is thought to contribute to the immune surveillance system by influencing the peptide repertoire of major histocompatibility complex (MHC) molecules, which are important for the recognition of foreign antigens by immune cells.
Overall, cystinyl aminopeptidase is a metalloexopeptidase enzyme that cleaves amino acids adjacent to cysteine residues from the N-terminus of peptide chains. It has diverse roles in protein degradation, regulation of peptide hormone activity, and immune response modulation.
Common Misspellings for CYSTINYL AMINOPEPTIDASE
- xystinyl aminopeptidase
- vystinyl aminopeptidase
- fystinyl aminopeptidase
- dystinyl aminopeptidase
- ctstinyl aminopeptidase
- cgstinyl aminopeptidase
- chstinyl aminopeptidase
- custinyl aminopeptidase
- c7stinyl aminopeptidase
- c6stinyl aminopeptidase
- cyatinyl aminopeptidase
- cyztinyl aminopeptidase
- cyxtinyl aminopeptidase
- cydtinyl aminopeptidase
- cyetinyl aminopeptidase
- cywtinyl aminopeptidase
- cysrinyl aminopeptidase
- cysfinyl aminopeptidase
- cysginyl aminopeptidase
- cysyinyl aminopeptidase
Etymology of CYSTINYL AMINOPEPTIDASE
The word "Cystinyl Aminopeptidase" has a Greek and Latin etymology.
1. Cystinyl: The root word "cyst-" comes from the Greek word "kustis" meaning "bladder" or "sac". In this context, it refers to "cysteine", an amino acid which forms disulfide bonds. The suffix "-yl" indicates that it is a functional group derived from an alcohol or compound.
2. Amino: The term "amino" comes from the Latin word "ammonia", which means "alkaline salt". It represents the presence of an amino group (-NH2) in the molecule.
3. Peptidase: The term "peptidase" is derived from the Greek word "peptos" meaning "digested" and the suffix "-ase", which generally indicates an enzyme.
