| rDNA | recombinant (or ribosomal) deoxyribonucleic acid |
|---|---|
| RP | radial pulse; radiopharmaceutical; rapid processing [of film]; Raynaud phenomenon; reactive protein;... |
| RPS4Y | ribosomal protein S4, Y-linked |
| rRNA | ribosomal ribonucleic acid |
| rRNP | ribosomal ribonucleoprotein |
| RNA, ribosomal, 5s | Constituent of the 50s subunit of prokaryotic ribosomes containing about 120 nucleotides and 34 proteins. It is also a constituent of the 60s subunit of eukaryotic ribosomes. 5s rrna is involved in initiation of polypeptide synthesis. (12 Dec 1998) |
|---|---|
| pre-ribosomal RNA endoribonuclease | <enzyme> Substrate is pre-rrna Registry number: EC 3.1.26.- Synonym: pre-rrna endoribonuclease (26 Jun 1999) |
| 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) |
| non-ribosomal peptide synthase | <enzyme> Nrp - non-ribosomal peptide/polyketide; locus nrp is mutated in a swarming-defective proteus mirabilis strain; 249 amino acid residues, mw 29.7 kD; amimo acid sequence given in first source Registry number: EC 6.3.2.- Synonym: nrpg protein, nrpg gene product (26 Jun 1999) |
| DNA, ribosomal | DNA sequences encoding ribosomal RNA. These sequences regulate amplification and transcription initiation and contain transcribed and nontranscribed spacer segments. (12 Dec 1998) |
| 60S ribosomal protein kinase | <enzyme> Phosphorylates 60s ribosomal proteins l44, l44', l45 and a 38 kD protein from the 60s subunit only on serine residues Registry number: EC 2.7.10.- (26 Jun 1999) |
| frameshifting, ribosomal | A directed change in translational reading frame that allows the production of a single protein from two or more overlapping genes. The process is programmed by the nucleotide sequence of the mRNA and is sometimes also affected by the secondary or tertiary mRNA structure. It has been described mainly in viruses (especially retroviruses), retrotransposons, and bacterial insertion elements but also in some cellular genes. (12 Dec 1998) |
| acceptor site | The ribosomal binding site for the aminoacyl-tRNA during protein synthesis. (05 Mar 2000) |
| acceptor splicing site | Boundary between the right end of an intron and the left end of the adjacent exon. Synonym: acceptor splicing site. (05 Mar 2000) |
| active site | <chemistry> A specific region of an enzyme where a substrate binds and catalysis takes place (binding site). (06 May 1997) |
| allosteric site | A specific site on a multi-subunit enzyme or other protein that is not the substrate binding site, but that when reversibly bound by an effector, induces a conformational change in the protein, altering its catalytic or binding properties. (12 Dec 1998) |
| amidation site | <molecular biology> A C terminus consensus sequence, required for C terminus amidation of peptides. Consensus is glycine, followed by 2 basic amino acids (arg or lys). (18 Nov 1997) |
| antibody combining site | <immunology> In immune network theory, an idiotope, an antigenic site of an antibody that is responsible for that antibody binding to an antigenic determinant (epitope). Also used of the site on a ligand molecule to which a cell surface receptor binds. (18 Nov 1997) |
| antigen-binding site | <immunology> In immune network theory, an idiotope, an antigenic site of an antibody that is responsible for that antibody binding to an antigenic determinant (epitope). Also used of the site on a ligand molecule to which a cell surface receptor binds. (18 Nov 1997) |
| antigen-combining site | See: paratope. (05 Mar 2000) |