Structure of PDB 8gbk Chain G Binding Site BS01

Receptor Information

>8gbk Chain G (length=100) Species: 1111708 (Synechocystis sp. PCC 6803 substr. Kazusa)

DPLTPAISDRICKHMNEDHASAIALYAQVFGQQTDVTMAQMQAIDPTGMD
LVVESEGGSKTIRIEFEQPLKDSEDAAQVLIAMAKQAASVGKNSAENLYF

Ligand information

• Ligand ID: HEB
• InChI: InChI=1S/C34H36N4O4.Fe/c1-7-21-17(3)25-13-26-19(5)23(9-11-33(39)40)31(37-26)16-32-24(10-12-34(41)42)20(6)28(38-32)15-30-22(8-2)18(4)27(36-30)14-29(21)35-25;/h8,13-16H,2,7,9-12H2,1,3-6H3,(H4,35,36,37,38,39,40,41,42);/q;+2/p-2/b25-13-,26-13-,27-14-,28-15-,29-14-,30-15-,31-16-,32-16-;
• InChIKey: NEGHHAJBRZGUAY-RGGAHWMASA-L
• SMILES:
  CACTVS 3.385: CCC1=C(C)C2=NC1=Cc3n4[Fe][N]5C(=C2)C(=C(CCC(O)=O)C5=CC6=NC(=Cc4c(C=C)c3C)C(=C6CCC(O)=O)C)C
  CACTVS 3.385: CCC1=C(C)C2=NC1=Cc3n4[Fe][N@@]5C(=C2)C(=C(CCC(O)=O)C5=CC6=NC(=Cc4c(C=C)c3C)C(=C6CCC(O)=O)C)C
  OpenEye OEToolkits 2.0.7: CCC1=C(C2=[N]3C1=Cc4c(c(c5n4[Fe]36[N]7=C(C=C8N6C(=C2)C(=C8CCC(=O)O)C)C(=C(C7=C5)C)CCC(=O)O)C=C)C)C
• Formula: C34 H34 Fe N4 O4
• Name: HEME B/C;
  HYBRID BETWEEN B AND C TYPE HEMES (PROTOPORPHYRIN IX CONTAINING FE)
• PDB chain: 8gbk Chain H Residue 201

Receptor-Ligand Complex Structure

Structure summary

• PDB: 8gbk A hemoprotein with a zinc-mirror heme site ties heme availability to carbon metabolism in cyanobacteria.
• Resolution: 2.9 Å
• Binding residue (original residue number in PDB): R12 I13 H16 H21 S75 A79 L82 I83
• Binding residue (residue number reindexed from 1): R10 I11 H14 H19 S73 A77 L80 I81
• Annotation score: 4

Gene Ontology

Molecular Function

• GO:0046872 metal ion binding

External links

• PDB: RCSB:8gbk, PDBe:8gbk, PDBj:8gbk
• PDBsum: 8gbk
• PubMed: 38609367
• UniProt: P73129