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Encyclopedia > Tetrose

A tetrose is a monosaccharide with 4 carbon atoms. Monosaccharides are the simplest form of carbohydrates. ... For other uses, see Carbon (disambiguation). ...


They either have an aldehyde functional group in position 1 (aldotetroses) or a ketone functional group in position 2 (ketotetroses). An aldehyde. ... In organic chemistry, functional groups (or moieties) are specific groups of atoms within molecules, that are responsible for the characteristic chemical reactions of those molecules. ... Ketone group A ketone (pronounced as key tone) is either the functional group characterized by a carbonyl group (O=C) linked to two other carbon atoms or a chemical compound that contains this functional group. ...


The aldotetroses have two chiralatrial centres ("asymmetric carbon atoms") and so 4 different stereoisomers are possible. ...


The naturally occurring aldotetroses are:

  • D-Erythrose
  • D-Threose

The 2 D-aldotetroses are: Erythrose is a tetrose carbohydrate with chemical formula C4H8O4. ... Threose is a tetrose carbohydrate with chemical formula C4H8O4. ...

 CH=O CH=O | | HC-OH HO-CH | | HC-OH HC-OH | | CH2OH CH2OH D-Erythrose D-Threose 

The ketotetroses have 1 chiral centres and therefore 2 possible stereoisomers — Erythrulose (L- and D-form). Fischer projection of D-erythrose D-Erythrose is a tetrose carbohydrate with the chemical formula C4H8O4. ... Fischer projection of D-threose D-Threose is a tetrose carbohydrate with the chemical formula C4H8O4. ... Fischer projection of D-erythrulose D-Erythrulose (also known as erythrulose) is a tetrose carbohydrate with the chemical formula C4H8O4. ...


The D-ketotetrose is:

 CH2OH | C=O | HC-OH | CH2OH D-Erythrulose 

The only naturally occurring ketotetrose is D-erythrulose. Fischer projection of D-erythrulose D-Erythrulose (also known as erythrulose) is a tetrose carbohydrate with the chemical formula C4H8O4. ... D-Erythrulose (also known as erythrulose) is a tetrose carbohydrate with the chemical formula C4H8O4. ...


See also


  Results from FactBites:
 
World J Gastroenterol (1518 words)
Neither tetrose nor mannan group had metastasis out of the liver, and the weight of liver in the two groups was significantly lower than those in the control group.
The tetrose and mannan in the present study, with the structure differing from the above two carbohydrates, are strikingly effective in inhibiting experimental liver metastases.
The tetrose we designed exists in the saccharide chains of tumor cell surface, its action suggested that the carbohydrate with this structure may block the metastatic process of tumor cells.
  More results at FactBites »

 
 

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