| P0A590 | n/a | 3zxr | IQ1 | A | 501 | e3zxrA1 | Glutamine synthetase-like | Glutamine synthetase/guanido kinase | Glutamine synthetase/guanido kinase | Gln-synt_C |
| P0A590 | n/a | 3zxr | IQ1 | B | 501 | e3zxrB3 | Glutamine synthetase-like | Glutamine synthetase/guanido kinase | Glutamine synthetase/guanido kinase | Gln-synt_C |
| P0A590 | n/a | 3zxr | IQ1 | C | 501 | e3zxrC3 | Glutamine synthetase-like | Glutamine synthetase/guanido kinase | Glutamine synthetase/guanido kinase | Gln-synt_C |
| P0A590 | n/a | 3zxr | IQ1 | F | 501 | e3zxrF3 | Glutamine synthetase-like | Glutamine synthetase/guanido kinase | Glutamine synthetase/guanido kinase | Gln-synt_C |