RNA molecule that can act as a biological Catalyst
RNA molecule that is a structural component of the ribosome.
RNA molecule that carries genetic information for the amino acid sequence of a protein
Pre-Messenger RNA (pre-mRNA)
Eukaryotic RNA molecule that is modified after transcription ot become mRNA.
RNA molecule that carries an amino acid to the ribosome and transfers it to a growing polypeptide chain in translation.
Small Nuclear RNA (snRNA)
Small RNA molecule found in the nuclei of eukaryotic cells; functions in the processing of pre-mRNA.
Small Nuclear Ribonucleoprotein (snRNP)
Structure found in the nuclei of eukaryotic cells that consists of small nuclear RNA (snRNA) and protein; functions in the processing of pre-mRNA.
Small Nucleolar RNA ( snoRNA)
Small RNA molecule found in the nuclei of eukaryotic cells; functions in the processing of rRNA and in the assembly of ribosomes.
Small Cytoplasmic RNA (scRNA)
Small RNA molecule found in the cytoplasm of eukaryotic cells.
Small RNA molecule, typically 21 or 22 bp in length, produced by cleavage of double-stranded RNA arising from small hairpins within RNA that is mostly single stranded. The miRNAs combine with proteins to form a complex that binds (imperfectly) to mRNA molecules and inhibits their translation.
Small Interfering RNA (siRNA)
Single-stranded RNA molecule (usually 21 - 25 nucleotides in length) produced by the cleavage and processing of double-stranded RNA; binds to complementary sequences in mRNA and brings about the cleavage and degradation of the mRNA. Some siRNAs bind to complementary sequences in DNA and bring about their methylation.
Piwi-interacting RNA (piRNA)
Small RNA molecule belonging to a class named after Piwi proteins with which these molecules interact; similar to micro RNA and small interfering RNA and thought to have a role in the regulation of sperm development.
The strand of DNA that is used as a template during transcription. The RNA synthesized is complementary and antiparallel to the template strand.
The DNA strand that is complementary to the template strand; not ordinarily used as a template during transcription.
Sequence of nucleotides in DNA that encodes a single RNA molecule, along with the sequences necessary for its transcription; normally contains a promoter, an RNA-coding sequence, and a terminator.
DNA sequence to which the transcription apparatus binds so as to initiate transcription; indicates the direction of transcription, which of the two DNA strands is to be read as the template, and the starting point of transcription.
Sequence of DNA nucleotides that encodes an RNA molecule.
Sequence of DNA nucleotides that causes the termination of transcription.
Ribonucleoside Triphosphate (rNTP)
Substrate of RNA synthesis; consists of ribose, a nitrogenous base, and three phosphates linked to the 5'-carbon atom of the ribose. In transcription, two of the phosphates are cleaved, producing an RNA nucleotide.
Enzyme that synthesizes RNA from a DNA template during transcription.