| ID: 945146 | tartronate semialdehyde reductase 2 [Escherichia coli str. K-12 substr. MG1655] | NC_000913.3 (536586..537464) | b0509, ECK0502, glxB1, ybbQ |
| ID: 945138 | putative allantoin transporter [Escherichia coli str. K-12 substr. MG1655] | NC_000913.3 (537633..539087) | b0511, ECK0504, allP, glxB2 |
| ID: 945134 | allantoinase [Escherichia coli str. K-12 substr. MG1655] | NC_000913.3 (539147..540508) | b0512, ECK0505, glxB3, ybbX |
| ID: 945131 | putative purine transporter [Escherichia coli str. K-12 substr. MG1655] | NC_000913.3 (540565..541866) | b0513, ECK0506, glxB4 |
| ID: 945129 | glycerate 2-kinase 2 [Escherichia coli str. K-12 substr. MG1655] | NC_000913.3 (541888..543033) | b0514, ECK0507, glxB5, ybbZ |