Macromolecular dictionary (mmCIF) version 2.0.09
_chem_comp_bond.atom_id_1
Name:'_chem_comp_bond.atom_id_1'
Definition:
The ID of the first of the two atoms that define the bond. This data item is a pointer to _chem_comp_atom.atom_id in the CHEM_COMP_ATOM category.
Mandatory item: yes


![[CIF home page] [CIF logo]](https://www.iucr.org/__data/assets/image/0015/131037/CIF_white.png)
![[International Tables Vol. G]](https://www.iucr.org/__data/assets/image/0014/11156/g.gif)
