POLYRIBONUCLEOTIDE NUCLEOTIDYLTRANSFERASE Meaning and
Definition
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Polyribonucleotide nucleotidyltransferase (PNPase) is an enzyme that is involved in the metabolism and processing of RNA molecules within living organisms. It plays a crucial role in various cellular processes, including RNA degradation, RNA processing, and RNA quality control.
PNPase is a multifunctional enzyme that exhibits both exoribonuclease and poly(A) polymerase activities. It is responsible for the degradation of RNA molecules by removing nucleotides from the 3' end, thereby participating in the turnover of RNA molecules. Additionally, PNPase is involved in RNA processing events, such as maturation of transfer RNA (tRNA) and ribosomal RNA (rRNA), as well as the generation of small RNAs.
The poly(A) polymerase activity of PNPase allows it to add adenosine nucleotides to the 3' end of RNA molecules, resulting in the polyadenylation of RNA. This activity is important for the stabilization of RNA molecules and for facilitating their interaction with other proteins. Polyadenylation is a common post-transcriptional modification that affects the stability, localization, and translation efficiency of RNA molecules.
Overall, PNPase is a key enzyme involved in the regulation of RNA metabolism in cells. Its diverse activities make it essential for maintaining the proper turnover and processing of RNA molecules, which are vital for cellular functions and gene expression.
Common Misspellings for POLYRIBONUCLEOTIDE NUCLEOTIDYLTRANSFERASE
- oolyribonucleotide nucleotidyltransferase
- lolyribonucleotide nucleotidyltransferase
- -olyribonucleotide nucleotidyltransferase
- 0olyribonucleotide nucleotidyltransferase
- pilyribonucleotide nucleotidyltransferase
- pklyribonucleotide nucleotidyltransferase
- pllyribonucleotide nucleotidyltransferase
- pplyribonucleotide nucleotidyltransferase
- p0lyribonucleotide nucleotidyltransferase
- p9lyribonucleotide nucleotidyltransferase
- pokyribonucleotide nucleotidyltransferase
- popyribonucleotide nucleotidyltransferase
- pooyribonucleotide nucleotidyltransferase
- poltribonucleotide nucleotidyltransferase
- polgribonucleotide nucleotidyltransferase
- polhribonucleotide nucleotidyltransferase
- poluribonucleotide nucleotidyltransferase
- pol7ribonucleotide nucleotidyltransferase
- pol6ribonucleotide nucleotidyltransferase
- polyeibonucleotide nucleotidyltransferase
Etymology of POLYRIBONUCLEOTIDE NUCLEOTIDYLTRANSFERASE
The word "Polyribonucleotide Nucleotidyltransferase" can be deconstructed into its components to understand its etymology:
1. "Poly-" is a prefix derived from the Greek word "polus", meaning "many" or "multiple".
2. "Ribonucleotide" is a compound word consisting of "ribo-" and "nucleotide".
- "ribo-" is a short form of ribose, the sugar molecule present in RNA (ribonucleic acid).
- "nucleotide" is derived from Latin and refers to the building blocks of nucleic acids (RNA and DNA).
3. "Nucleotidyltransferase" is a compound word made of "nucleotide" and "transferase".
- "transferase" is a suffix indicating an enzyme that catalyzes the transfer of a functional group from one molecule to another.
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