oligoribonuclease |
<enzyme> A 3'-5' exoribonuclease in escherichia coli; copurifies with polynucleotide phosphorylase Registry number: EC 3.1.- (26 Jun 1999) |
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oligoribonucleotides |
A group of ribonucleotides (up to 12) in which the phosphate residues of each ribonucleotide act as bridges in forming diester linkages between the ribose moieties. (12 Dec 1998) |
oligosaccharide |
<chemistry> A saccharide of a small number of component sugars, either O or N linked to the next sugar. Number of component sugars not rigorously defined. (18 Nov 1997) |
oligosaccharide 2-O-sulfatase |
<enzyme> Hydrolyzes the 2-o-sulfate of the disaccharide 4-deoxy-2-o-sulfato-alpha-l-threo-hex-4-enopyranosyluronic acid-(1-4)-2-deoxy-2-sulfamido-6-o-sulfato-d-glucose from heparin Registry number: EC 3.1.6.- Synonym: flavobacterium heparinum 2-o-sulphatase, heparo-2-o-sulfatase (26 Jun 1999) |
oligosaccharide dehydrogenase |
<enzyme> Commercial preparation from staphylococcus which catalyses oxidation of reducing sugars such as glucose, galactose, fructose, mannose, maltose, lactose, maltotriose, maltotetraose, maltopentaose and maltohexaose Registry number: EC 1.1.- (26 Jun 1999) |
oligosaccharide-diphosphodolichol pyrophosphatase |
<enzyme> From yeast microsomal membranes; hydrolyses the pyrophosphate bond of oligosaccharide-pyrophosphodolichol into oligosaccharide phosphates plus dolicholphosphate Registry number: EC 3.6.1.44 Synonym: ols-pp-dol pyrophosphatase, oligosaccharide-pyrophosphodolichol pyrophosphatase (26 Jun 1999) |
oligosaccharin |
<biochemistry> An oligosaccharide derived from the plant cell wall that in small quantities induces a physiological response in a nearby cell of the same or a different plant and thus acts as a molecular signal. Sometimes considered to be a plant hormone or plant growth substance. The best authenticated examples are involved in host pathogen interactions and in the control of plant cell expansion. (18 Nov 1997) |
oligosaccharyl sulfatase |
<enzyme> From keyhole limpet; hydrolyzes sulfate esters in asparagine-linked oligosaccharides preferentially to 4-nitrocatechol sulfate Registry number: EC 3.1.6.- (26 Jun 1999) |
oligosepalous |
<botany> Having few sepals. Origin: Oligo- + sepal. Source: Websters Dictionary (01 Mar 1998) |
oligosialia |
Synonym: oligoptyalism. Origin: oligo-+ G. Sialon, saliva (05 Mar 2000) |
oligosiderite |
<chemical> A meteorite characterised by the presence of but a small amount of metallic iron. Origin: Oligo- + siderite. Source: Websters Dictionary (01 Mar 1998) |
oligospermia |
<urology> A low sperm count. (09 Oct 1997) |
oligospermous |
<botany> Having few seeds. Origin: Oligo- + Gr. A seed. Source: Websters Dictionary (01 Mar 1998) |
oligosymptomatic |
Having few or minor symptoms. (05 Mar 2000) |
oligosynaptic |
Referring to neural conduction pathways that are interrupted by only a few synaptic junctions, i.e., made up of a sequence of only few nerve cells, in contrast to polysynaptic pathways. Synonym: paucisynaptic. (05 Mar 2000) |