Concept that there is a direct correspondence between the nucleotide sequence of a gene and the continuous sequence of amino acids in a protein.
Coding region of a spilt gene (a gene that is interrupted by introns). After processing, the exons remain in messenger RNA.
Intervening sequence in a spilt gene; removed from RNA after transcription.
Belongs to a class of introns in some ribosomal RNA genes that are capable of self-splicing.
Belongs to a class of introns in some protein-encoding genes that are capable of self-splicing and are found in mitochondria, cholroplasts, and a few eubacteria.
Belongs to a class of introns in protein-encoding genes that reside in the nuclei of eukaryotic cells; removed by spliceosomal-mediated splicing.
Belongs to a class of introns in tRNA genes. The splicing of thesee genes relies on enzymes.
Sequence of 3 nucleotides that encodes one amino acid in a protein.
5' Untranslated region (5' UTR)
Sequence of nucleotides at the 5' end of mRNA; does not encode the amino acids of a protein.
Consensus sequence found in bacterial 5' untranslated region of mRNA; contains the ribosome-binding site.
The part of mRNA consisting of the nucleotides that specify the amino acid sequence of a protein.
3' Untranslated region (3' UTR)
Sequence of nucleotides at the 3' end of mRNA; does not encode the amino acids of a protein but affects both the stability of the mRNA and its translation.
Modified 5' end of eukaryotic mRNA, consisting of an extra nucleotides; plays a role in the binding of the ribosome to mRNA and affects mRNA stability and the removal of introns.
String of adenine nucleotides added to the 3' end of eukaryotic mRNA after transcription.
Process by which introns are removed and exons are joined together.
The 5' end of an intron where cleavage takes place in RNA splicing.
The 3' end of an intron where cleavage takes place in RNA splicing.
Adenine nucleotide in nuclear pre-mRNA introns that lies from 18 to 40 nucleotides upstream of 3' splice site.
Large complex consisting of several RNAs and many proteins that splices protein-encoding pre-mRNA; contains five small ribonucleoprotein particles (U1, U2, U4, U5, and U6)
Looplike structure created in the splicing of nuclear pre-mRNA in which the 5' end of an intron is attached to a branch point in pre-mRNA.