According to "Elementary Biochemistry" by J. Davies and B. Shaffer Littlewood, mRNA contains 100-5000 N-containing bases, which is also the # of nucleotides. I guess the size of the mRNA is related to the size of the protein molecule that is being synthesized. What is the largest protein made in the human body?
Polyadenylation of mRNA in the nucleus serves several key purposes: it adds a long stretch of adenine nucleotides (the poly(A) tail) to the 3' end of the mRNA transcript, which enhances mRNA stability and protects it from degradation. This modification also plays a crucial role in the regulation of nuclear export, facilitating the transport of mature mRNA to the cytoplasm. Additionally, the poly(A) tail is important for efficient translation of the mRNA into protein by aiding in the initiation of translation.
mRNA
The maximum length of a polypeptide encoded by an mRNA is determined by the number of nucleotides in the mRNA sequence. Each amino acid is encoded by a set of three nucleotides called a codon. With a 45-nucleotide mRNA sequence, the maximum length of the polypeptide would be 45/3 = 15 amino acids.
Long strands of RNA that are complementary to one strand of DNA are called messenger RNA (mRNA). During the process of transcription, RNA polymerase synthesizes mRNA by using one strand of DNA as a template, creating a complementary RNA sequence. This mRNA then carries the genetic information from the DNA in the nucleus to the ribosomes, where it is translated into proteins.
The creation of mRNA is called transcription. mRNA is being transcribed from the DNA template.
Polyadenylation of mRNA in the nucleus serves several key purposes: it adds a long stretch of adenine nucleotides (the poly(A) tail) to the 3' end of the mRNA transcript, which enhances mRNA stability and protects it from degradation. This modification also plays a crucial role in the regulation of nuclear export, facilitating the transport of mature mRNA to the cytoplasm. Additionally, the poly(A) tail is important for efficient translation of the mRNA into protein by aiding in the initiation of translation.
mRNA
The maximum length of a polypeptide encoded by an mRNA is determined by the number of nucleotides in the mRNA sequence. Each amino acid is encoded by a set of three nucleotides called a codon. With a 45-nucleotide mRNA sequence, the maximum length of the polypeptide would be 45/3 = 15 amino acids.
Long strands of RNA that are complementary to one strand of DNA are called messenger RNA (mRNA). During the process of transcription, RNA polymerase synthesizes mRNA by using one strand of DNA as a template, creating a complementary RNA sequence. This mRNA then carries the genetic information from the DNA in the nucleus to the ribosomes, where it is translated into proteins.
The poly(A) tail is a long sequence of adenine nucleotides added to the end of a processed mRNA molecule. It plays a role in protecting the mRNA from degradation and regulating its stability and translation efficiency. The addition of the poly(A) tail is an essential step in mRNA processing in eukaryotic cells.
The cap and tail on eukaryotic mRNA play important roles in mRNA stability and translation. The 5' cap protects the mRNA from degradation and helps in the initiation of translation. The poly(A) tail at the 3' end of mRNA also plays a role in mRNA stability and regulation of translation.
Yes, cDNA is complementary to mRNA.
The creation of mRNA is called transcription. mRNA is being transcribed from the DNA template.
A codon is found on a molecule called messenger RNA (mRNA). mRNA carries the genetic information from the DNA to the ribosome during protein synthesis. Each codon on the mRNA corresponds to a specific amino acid in the protein sequence.
mRNA can be silenced through a process called RNA interference (RNAi). In RNAi, small RNA molecules called small interfering RNAs (siRNAs) or microRNAs (miRNAs) bind to the mRNA molecules and prevent them from being translated into proteins. This silencing can occur through mechanisms such as degradation of the mRNA or inhibition of its translation. Additionally, other factors such as RNA-binding proteins and long non-coding RNAs can also contribute to mRNA silencing.
DNA -> transcription -> pre-mRNA -> mRNA processing -> mRNA -> translation -> protein
The 5' cap of mRNA is important for several reasons: it protects the mRNA from degradation by exonucleases, helps in the recognition and binding of the mRNA by the ribosome for translation, and is essential for efficient splicing of introns.