Can Any one tell how S glutamine differes from L glutamine. Is S glutamine better for Cell cuture ?

L and S glutamine are the synonyms for the same product. S-glutamine is indicative of the structural optical rotation and L-glutamine is activity based rotation.

The S- stands for sinister which means left in latin.

If the product is biologically active it is the L-form and if it is biologically inactive it is the D-form. The cells are not able to use the D-form as an energy source. They can only use the L-form of glutamine.

Hi jignesh,

Is there a good web reference to this with good amino acid structures?

Thanks.