RNA polymerase I - Wikipedia
RNA polymerase 1 (also known as Pol I) is, in higher eukaryotes, the polymerase that only transcribes ribosomal RNA (but not 5S rRNA, which is synthesized by RNA polymerase III), a type of RNA that accounts for over 50% of the total RNA synthesized in a cell.
RNA polymerase - Wikipedia
In molecular biology, RNA polymerase (abbreviated RNAP or RNApol), or more specifically DNA-directed/dependent RNA polymerase (DdRP), is an enzyme that catalyzes the chemical reactions that synthesize RNA from a DNA template.
RNA Polymerase: Properties, Structure, Types, Functions
2023年8月3日 · RNA polymerase is a multi-unit enzyme that synthesis RNA molecules from the DNA molecule during the process of transcription. It is responsible for transcribing the genes encoded in DNA molecules into code-able sequences …
Molecular insight into RNA polymerase I promoter recognition …
2019年12月5日 · RNA polymerase I (Pol I) catalyses the transcription of pre-ribosomal RNA and for transcription initiation Pol I assembles with core factor and Rrn3 on the rDNA core promoter.
Specific Features of RNA Polymerases I and III: Structure and …
2021年5月14日 · RNA polymerase I (RNAPI) and RNAPIII are multi-heterogenic protein complexes that specialize in the transcription of highly abundant non-coding RNAs, such as ribosomal RNA (rRNA) and transfer RNA (tRNA). In terms of subunit number and structure, RNAPI and RNAPIII are more complex than RNAPII that synthesizes thousands of different …
12.4: RNA Polymerase - Biology LibreTexts
2021年2月28日 · RNA polymerase I is located in the nucleolus, a specialized nuclear substructure in which ribosomal RNA (rRNA) is transcribed, processed, and assembled into ribosomes (Table 1). The rRNA molecules are considered structural RNAs because they have a cellular role but are not translated into protein.
RNA polymerase I structure and transcription regulation
2013年10月23日 · RNA polymerase I (Pol I) transcribes ribosomal RNA which is critically required for ribosome assembly, and the enzyme is therefore a major determinant of protein biosynthesis and cell growth.
Structure of the human RNA polymerase I elongation complex
2021年10月20日 · Eukaryotic RNA polymerase I (Pol I) transcribes ribosomal DNA and generates RNA for ribosome synthesis. Pol I accounts for the majority of cellular transcription activity and dysregulation of...
Biochemistry, RNA Polymerase - StatPearls - NCBI Bookshelf
2023年7月17日 · RNA polymerase, abbreviated RNAP and officially known as DNA-directed RNA polymerase, is found in all living organisms as well as many viruses. Present in bacteria, archaea, and even eukaryotes, these RNAPs all share similar protein core …
RNA Polymerase | Biology for Majors I - Lumen Learning
RNA polymerase I is located in the nucleolus, a specialized nuclear substructure in which ribosomal RNA (rRNA) is transcribed, processed, and assembled into ribosomes (Table 1). The rRNA molecules are considered structural RNAs because they have a cellular role but are not translated into protein.