Table 2. Possible hydrogen bonds between the PYK structures and FBP, G6P and R5P*.
| FBP | G6P | R5P | ||||
| Organism | Pi-moieties | sugar-moiety | Pi-moiety | sugar-moiety | Pi-moiety | sugar-moiety |
| Escherichia | Q379$ | G454 | Q379 | A377 | Q379 | A377 |
| coli | K382 | A377 | Q380 | G454 | G380 | G454 |
| G380 | S383 | V457 | K382 | V457 | ||
| S383 | K382 | S383 | ||||
| T401 | ||||||
| Streptococcus | F401 | G454 | F401 | E379 | - | I377 |
| mutans | G454 | E379 | ||||
| S459 | S459 | |||||
| G461 | ||||||
| Lactococcus | E381 | V457 | - | L379 | - | T459 |
| lactis | G456 | V459 | G456 | I377 | ||
| T461 | G460 | T461 | ||||
| R463 | ||||||
*
possible hydrogen bonds are computed with UCSF Chimera version 1.6.2.
$
hydrogen bonding between the oxygen linking the phosphate moiety and the sugar moiety.