N[C@@H](C[NH3+])C(=O)[O-]    mol8522    0_1
NC[C@H](N)C(=O)O    mol8522    0_2
NC[C@H]([NH3+])C(=O)[O-]    mol8522    0_3
NC[C@H]([NH3+])C(=O)O    mol8522    1_1
[NH3+]C[C@H]([NH3+])C(=O)[O-]    mol8522    1_2
N[C@@H](C[NH3+])C(=O)O    mol8522    1_3
[NH3+]C[C@H]([NH3+])C(=O)O    mol8522    2_1
NC[C@H](N)C(=O)[O-]    mol8522    -1_1