| HDV | hepatitis D virus; hepatitis delta virus |
|---|---|
| HLV | hamster leukemia virus; herpes-like virus; hypoplastic left ventricle |
| HTLV | human T-cell leukemia/lymphoma virus; human T-lymphotropic virus |
| LAV | leafhopper A virus; lymphadenopathy-associated virus |
| LV | laryngeal vestibule; lateral ventricle; lecithovitellin; left ventricle, left ventricular; leucovori... |
| polymerase, DNA or RNA | Enzymes that catalyse the synthesis of nucleic acids on pre-existing nucleic acid templates, assembling RNA from ribonucleotides or DNA from deoxyribonucleotides. (05 Mar 2000) |
|---|---|
| polymerase, RNA | Enzyme that catalyses (speeds) the polymerization of RNA. Rna polymerase uses preexisting nucleic acid templates and assembles the RNA from ribonucleotides. (12 Dec 1998) |
| positive strand RNA viruses | Class IV and VI viruses that have a single stranded RNA genome that can act as mRNA plus strand) and in which the virus RNA is itself infectious. Includes Picornaviridae, Togaviridae and Retroviridae. (18 Nov 1997) |
| CTP-RNA cytidylyltransferase | <enzyme> Catalyses addition of cmp residue to 3'-ends of oligonucleotide primers Registry number: EC 2.7.7.- Synonym: terminal cytidylyltransferase (26 Jun 1999) |
| pre-ribosomal RNA endoribonuclease | <enzyme> Substrate is pre-rrna Registry number: EC 3.1.26.- Synonym: pre-rrna endoribonuclease (26 Jun 1999) |
| prolyl T RNA synthetase | <enzyme> Minor descriptor (75-84); on-line and index medicus search amino acyl t RNA synthetases (75-84) Registry number: EC 6.1.1.15 Synonym: l-proline-trna-pro ligase (AMP-forming) (26 Jun 1999) |
| satellite RNA | <molecular biology> A small, self-splicing RNA molecule that accompanies several plant viruses, including tobaccoringspot virus. (09 Oct 1997) |
| heterogeneous nuclear RNA | An ill-defined form of RNA, of high molecular weight, that never leaves the nucleus and is thought to be the precursor of messenger RNA. (05 Mar 2000) |
| heterogenous nuclear RNA | <molecular biology> Originally identified as a class of RNA, found in the nucleus but not the nucleolus, which is rapidly labelled and with a very wide range of sizes, 2-40 kilobases. It represents the primary transcripts of RNA polymerase II and includes precursors of all messenger RNAs from which introns are removed by splicing. (18 Nov 1997) |
| sequence analysis, RNA | A multistage process that includes RNA cloning, physical mapping, subcloning, sequencing, and information analysis. (12 Dec 1998) |
| sisomicin-gentamicin resistance ribosomal RNA methylase | <enzyme> Catalyses the methylation of 30s ribosomal units to confer sisomicin-gentamicin resistance in micromonospora zionensis Registry number: EC 2.1.1.- Synonym: sgm gene product, sgm methylase (26 Jun 1999) |
| small nuclear RNA | <molecular biology> A nucleic acid found in all living cells. Plays a role in transferring information from DNA to the protein-forming system of the cell. (16 Dec 1997) |
| soluble RNA | rNA |
| nuclear RNA | <molecular biology> The nucleus contains RNA that has just been synthesised, but in addition there is some that seems not to be released or is only released after further processing, the heterogenous nuclear RNA (hnRNA) and small RNA molecules associated with protein to form small nuclear ribonucleoproteins. (18 Nov 1997) |
| DNA-directed RNA polymerase | <enzyme> A group of enzymes that catalyses DNA template-directed extension of the 3'-end of an RNA strand one nucleotide at a time. They can initiate a chain de novo. In eukaryotes, three forms of the enzyme have been distinguished on the basis of sensitivity to alpha-amanitin, and the type of RNA synthesised. Chemical name: Nucleoside-triphosphate:RNA nucleotidyltransferase (DNA-directed) Registry number: EC 2.7.7.6 (12 Dec 1998) |