TABLE 4.
Analysis of aromatic 13C fine structures of tyrosine
| Nature of values | Carbon atom analyzed | Relative abundance of indicated intact carbon fragmenta at:
|
|||||
|---|---|---|---|---|---|---|---|
| Mid-exponential phase
|
Early stationary phase
|
||||||
| f(1) | f(2) | f(3) | f(1) | f(2) | f(3) | ||
| Calculatedb | Tyr-δ | 0.00 | 1.00 | 0.00 | 0.01 | 0.99 | 0.00 |
| Observed | 0.11 | 0.88 | 0.01 | 0.12 | 0.87 | 0.01 | |
| Calculatedc | Tyr-ɛ | 0.50 | 0.00 | 0.50 | 0.50 | 0.00 | 0.50 |
| Observed | 0.30 | 0.22d | 0.48 | 0.31 | 0.21d | 0.48 | |
a
For the definitions of f(1), f(2), and f(3), see Materials and Methods.
b
Calculated with equation 13.
c
Calculated with equation 14.
d
Denotes the relative abundance of tyrosine molecules carrying Cɛ—Cδ fragments originating from a single molecule of glycerol.