Glutamine glyceraldehyde

Glucose 6-phosphate isomerase 279 Glucosidases—see lysozyme Glutamate dehydrogenase 167 Glutamine synthetase 298 Glyceraldehyde 3-phosphate... 

In most bacteria, pyridoxal phosphate is synthesized by condensation between 4-hydroxythreonine and the pentose sugar 1-deoxy-xylulose phosphate, formed by condensation between pyruvate and glyceraldehyde 3-phosphate. The details of the pathway are not known. In plants, fungi, and some bacteria, the precursor is glutamine again, the pathway is unknown (Drewke and Leismer, 2001 Gupta et al., 2001). 

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