In organic chemistry, a ketose is a monosaccharide containing one ketone (>C=O) group per molecule. The simplest ketose is dihydroxyacetone ((CH2OH)2C=O)...

aldose into the ketose isomer or vice versa, with a tautomeric enediol as reaction intermediate. Ketoses may be transformed into 3-ketoses, etcetera. The...

between two carbons; then it is formally a ketone, and is termed a ketose. Ketoses of biological interest usually have the carbonyl at position 2. The...

specifically those intramolecular oxidoreductases interconverting aldoses and ketoses. The isomerase has now been observed in nearly a hundred species of bacteria...

test which distinguishes between aldose and ketose sugars. If the sugar contains a ketone group, it is a ketose. If a sugar contains an aldehyde group, it...

oxygen. The straight-chain ketose is formed. To close the fructose ring, the reverse of ring opening occurs and the ketose is protonated. An example of...

2-ketohexoses, and the most important 2-ketose is fructose. Besides the 2-ketoses, there are only the 3-Ketoses, and they do not exist in nature, although...

enantiomers of glyceraldehyde, which are aldoses; and dihydroxyacetone, a ketose which is symmetrical and therefore has no enantiomers. Trioses are important...

(E4P). The two carbons on transketolase are added to a G3P, giving the ketose xylulose-5-phosphate (Xu5P).[citation needed] E4P and a DHAP (formed from...

Sorbose is a ketose belonging to the group of sugars known as monosaccharides. It has a sweetness that is equivalent to sucrose (table sugar). The commercial...

great importance in biology and industry. Examples include many sugars (ketoses), many steroids (e.g., testosterone), and the solvent acetone. The word...

to interconvert glucose 6-phosphate and fructose 6-phosphate (aldose to ketose) consists of three major steps: opening the glucose ring, isomerizing glucose...

steps taking place are aldol reactions, reverse aldol reactions, and aldose-ketose isomerizations. Intermediates are glycolaldehyde, glyceraldehyde, dihydroxyacetone...

groups: the aldoses, which have an aldehyde group, and the ketoses, which have a ketone group. Ketoses must first tautomerize to aldoses before they can act...

end of a 2-ketose is oxidized creating an α-ketoacid. Uronic acids, in which the −CH2OH group at the terminal end of an aldose or ketose is oxidized...

oxidoreductases interconverting aldoses and ketoses. The systematic name of this enzyme class is L-arabinose aldose-ketose-isomerase. This enzyme participates...

connected to all the other carbon atoms. Aldoses can be distinguished from ketoses, which have the carbonyl group away from the end of the molecule, and are...

Triose-phosphate isomerase (TPI or TIM) is an enzyme (EC 5.3.1.1) that catalyzes the reversible interconversion of the triose phosphate isomers dihydroxyacetone...

and hemiacetals, including those that occur in certain ketoses. In example, although the ketose fructose is not strictly a reducing sugar, it is an alpha-hydroxy-ketone...

from a 5-carbon ketose (D-xylulose-5-P), then transfers this fragment to a 5-carbon aldose (D-ribose-5-P) to form a 7-carbon ketose (sedoheptulose-7-P)...

interconverting aldoses and ketoses. The systematic name of this enzyme class is S-methyl-5-thio-alpha-D-ribose-1-phosphate aldose-ketose-isomerase. Other names...

oxidoreductases interconverting aldoses and ketoses. The systematic name of this enzyme class is D-mannose aldose-ketose-isomerase. Other names in common use...

oxidoreductases interconverting aldoses and ketoses. The systematic name of this enzyme class is D-arabinose aldose-ketose-isomerase. Other names in common use...

v t e Types of carbohydrates General Aldose Ketose Furanose Pyranose Geometry Anomer Cyclohexane conformation Epimer Mutarotation Monosaccharides Multiple...

interconverting aldoses and ketoses. The systematic name of this enzyme class is 4-deoxy-L-threo-5-hexosulose-uronate aldose-ketose-isomerase. This enzyme...

oxidoreductases interconverting aldoses and ketoses. The systematic name of this enzyme class is D-lyxose aldose-ketose-isomerase. Other names in common use...

oxidoreductases interconverting aldoses and ketoses. The systematic name of this enzyme class is L-rhamnose aldose-ketose-isomerase. Other names in common use...

oxidoreductases interconverting aldoses and ketoses. The systematic name of this enzyme class is D-glucuronate aldose-ketose-isomerase. Other names in common use...

oxidoreductases interconverting aldoses and ketoses. The systematic name of this enzyme class is D-ribose aldose-ketose-isomerase. Other names in common use...

oxidoreductases interconverting aldoses and ketoses. The systematic name of this enzyme class is 11-deoxycorticosterone aldose-ketose-isomerase. Martin KO, Oh SW, Lee...