HEM Query on HEM
Download Ideal Coordinates CCD File 
| B [auth A] | PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L | ![](https://cdn.rcsb.org/images/ccd/unlabeled/H/HEM.svg) | |
GOL Query on GOL
Download Ideal Coordinates CCD File 
| O [auth A], P [auth A] | GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N | ![](https://cdn.rcsb.org/images/ccd/unlabeled/G/GOL.svg) | |
ZN Query on ZN
Download Ideal Coordinates CCD File 
| E [auth A], F [auth A], H [auth A], I [auth A], J [auth A] | ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N | ![](https://cdn.rcsb.org/images/ccd/unlabeled/Z/ZN.svg) | |
FE Query on FE
Download Ideal Coordinates CCD File 
| G [auth A], K [auth A], L [auth A], M [auth A], N [auth A] | FE (III) ION Fe VTLYFUHAOXGGBS-UHFFFAOYSA-N | ![](https://cdn.rcsb.org/images/ccd/unlabeled/F/FE.svg) | |
CA Query on CA
Download Ideal Coordinates CCD File 
| C [auth A], D [auth A] | CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N | ![](https://cdn.rcsb.org/images/ccd/unlabeled/C/CA.svg) | |