TABLE 4.
Relative concentrations of intracellular phosphorylated metabolites and total inorganic phosphates in Z. mobilis ZM4(pZB5) cell suspensionsa
| Carbon source | Relative concentration (arbitrary units) of:
|
|||
|---|---|---|---|---|
| Sugar phosphatesb | UDP sugars | NTP | Inorganic phosphate | |
| Control | 1.00 | NDc | ND | 7.99 |
| Xylose | 4.36 (2.45) | 0.07 | 0.18 | 4.28 |
| Glucose | 2.14 (0.72) | 0.82 | 1.88 | 3.45 |
a
31P-NMR spectra of Z. mobilis ZM4(pZB5) cells before the addition of sugars were used as controls. Concentrations were estimated by integration to determine the area under the peak of interest.
b
Values in parentheses are normalized values as described in the text.
c
ND, not determined (below the detection range).