Proteins and Enzymes in Prokaryotic Transcription
In this video we have discussed about the different proteins and enzymes involved in prokaryotic transcription.
Transcription is the first step of gene expression, in which a particular segment of DNA is copied into RNA (especially mRNA) by the enzyme RNA polymerase. Both DNA and RNA are nucleic acids, which use base pairs of nucleotides as a complementary language. During transcription, a DNA sequence is read by an RNA polymerase, which produces a complementary, antiparallel RNA strand called a primary transcript.
RNA polymerase (ribonucleic acid polymerase), both abbreviated RNAP or RNApol, official name DNA-directed RNA polymerase, is an enzyme that synthesizes RNA from a DNA template. RNAP locally opens the double-stranded DNA (usually about four turns of the double helix) so that one strand of the exposed nucleotides can be used as a template for the synthesis of RNA, a process called transcription.
The Pribnow box (also known as the Pribnow-Schaller box) is the sequence TATAAT of six nucleotides (thymine, adenine, thymine, etc.) that is an essential part of a promoter site on DNA for transcription to occur in bacteria.
Rho factor binds to the transcription terminator pause site, an exposed region of single stranded RNA (a stretch of 72 nucleotides) after the open reading frame at C-rich/G-poor sequences that lack obvious secondary structure. Rho factor is an essential transcription protein in prokaryotes.
Видео Proteins and Enzymes in Prokaryotic Transcription канала Hussain Biology
Transcription is the first step of gene expression, in which a particular segment of DNA is copied into RNA (especially mRNA) by the enzyme RNA polymerase. Both DNA and RNA are nucleic acids, which use base pairs of nucleotides as a complementary language. During transcription, a DNA sequence is read by an RNA polymerase, which produces a complementary, antiparallel RNA strand called a primary transcript.
RNA polymerase (ribonucleic acid polymerase), both abbreviated RNAP or RNApol, official name DNA-directed RNA polymerase, is an enzyme that synthesizes RNA from a DNA template. RNAP locally opens the double-stranded DNA (usually about four turns of the double helix) so that one strand of the exposed nucleotides can be used as a template for the synthesis of RNA, a process called transcription.
The Pribnow box (also known as the Pribnow-Schaller box) is the sequence TATAAT of six nucleotides (thymine, adenine, thymine, etc.) that is an essential part of a promoter site on DNA for transcription to occur in bacteria.
Rho factor binds to the transcription terminator pause site, an exposed region of single stranded RNA (a stretch of 72 nucleotides) after the open reading frame at C-rich/G-poor sequences that lack obvious secondary structure. Rho factor is an essential transcription protein in prokaryotes.
Видео Proteins and Enzymes in Prokaryotic Transcription канала Hussain Biology
Показать
Комментарии отсутствуют
Информация о видео
Другие видео канала
Prokaryotic Transcription Initiation and ElongationOverview of TranscriptionTranscription in Prokaryotes - Overview of All You Need to KnowFactors and Enzymes in Prokaryotic TranslationGene regulation in prokaryotesProteins and Enzymes in Eukaryotic TranscriptionEukaryotic TranscriptionTranscription Termination in EukaryotesTranscription Elongation in EukaryotesTranscription initiation in prokaryotes | prokaryotic transcription lecture 2Transcription Initiation in EukaryotesTranscription in prokaryotesOverview of Translation | Protein SynthesisSplicingDNA Replication | Prokaryotic vs Eukaryotic EnzymestRNA Charging or Aminoacylation | Translation Initiation in ProkaryotesOverview of mRNA Processing in EukaryotesWhat is a GENE ? A Molecular ApproachTranslation Initiation in Prokaryotes