Structure of PDB 4zv8 Chain A Binding Site BS01

Receptor Information

>4zv8 Chain A (length=465) Species: 9606 (Homo sapiens)

GKLPPGPRPLPLLGNLLQMDRRGLLKSFLRFREKYGDVFTVHLGPRPVVM
LCGVEAIREALVDKAEAFSGRGKIAMVDPFFRGYGVIFANGNRWKVLRRF
SVTTMRDFGMGKRSVEERIQEEAQCLIEELRKSKGALMDPTFLFQSITAN
IICSIVFGKRFHYQDQEFLKMLNLFYQTFSLISSVFGQLFELFSGFLKHF
PGAHRQVYKNLQEINAWIGHSVEKHRETLDPSAPRDLIDTYLLHMEKEKS
NAHSEFSHQNLNLNTLSLFFAGTETTSTTLRYGFLLMLKYPHVAERVYRE
IEQVIGPHRPPELHDRAKMPYTEAVIYEIQRFSDLLPMGVPHIVTQHTSF
RGYIIPKDTEVFLILSTALHDPHYFEKPDAFNPDHFLDANGALKKTEAFI
PFSLGKRICLGEGIARAELFLFFTTILQNFSMASPVAPEDIDLTPQECGV
GKIPPTYQIRFLPRH

Ligand information

• Ligand ID: HEM
• InChI: InChI=1S/C34H34N4O4.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;/h7-8,13-16H,1-2,9-12H2,3-6H3,(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: KABFMIBPWCXCRK-RGGAHWMASA-L
• SMILES:
  OpenEye OEToolkits 1.7.6: Cc1c2n3c(c1CCC(=O)O)C=C4C(=C(C5=[N]4[Fe]36[N]7=C(C=C8N6C(=C5)C(=C8C)C=C)C(=C(C7=C2)C)C=C)C)CCC(=O)O
  CACTVS 3.385: CC1=C(CCC(O)=O)C2=Cc3n4[Fe]5|6|N2=C1C=c7n5c(=CC8=N|6C(=Cc4c(C)c3CCC(O)=O)C(=C8C=C)C)c(C)c7C=C
  ACDLabs 12.01: C=1c3c(c(c4C=C5C(=C(C=6C=C7C(=C(C8=CC=2C(=C(C=1N=2[Fe](n34)(N5=6)N78)CCC(=O)O)C)\C=C)C)\C=C)C)C)CCC(=O)O
• Formula: C34 H32 Fe N4 O4
• Name: PROTOPORPHYRIN IX CONTAINING FE;
  HEME
• DrugBank: DB18267
• PDB chain: 4zv8 Chain A Residue 501

Receptor-Ligand Complex Structure

Structure summary

• PDB: 4zv8 Coumarin Derivatives as Substrate Probes of Mammalian Cytochromes P450 2B4 and 2B6: Assessing the Importance of 7-Alkoxy Chain Length, Halogen Substitution, and Non-Active Site Mutations.
• Resolution: 2.24 Å
• Binding residue (original residue number in PDB): R98 I114 W121 R125 A298 G299 T302 L362 L363 H369 P428 F429 S430 R434 C436 L437 G438 A442
• Binding residue (residue number reindexed from 1): R71 I87 W94 R98 A271 G272 T275 L335 L336 H342 P401 F402 S403 R407 C409 L410 G411 A415
• Annotation score: 1

Enzymatic activity

• Catalytic site (original residue number in PDB): T302 F429 C436
• Catalytic site (residue number reindexed from 1): T275 F402 C409
• Enzyme Commision number: 1.14.13.-

Gene Ontology

Molecular Function

• GO:0004497 monooxygenase activity
• GO:0005506 iron ion binding
• GO:0008390 testosterone 16-alpha-hydroxylase activity
• GO:0008392 arachidonate epoxygenase activity
• GO:0016705 oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
• GO:0016712 oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen
• GO:0020037 heme binding
• GO:0046872 metal ion binding
• GO:0062184 testosterone 16-beta-hydroxylase activity
• GO:0062187 anandamide 8,9 epoxidase activity
• GO:0062188 anandamide 11,12 epoxidase activity
• GO:0062189 anandamide 14,15 epoxidase activity
• GO:0101021 estrogen 2-hydroxylase activity

Biological Process

• GO:0006629 lipid metabolic process
• GO:0006805 xenobiotic metabolic process
• GO:0008202 steroid metabolic process
• GO:0019373 epoxygenase P450 pathway
• GO:0042178 xenobiotic catabolic process
• GO:0042180 cellular ketone metabolic process

Cellular Component

• GO:0005737 cytoplasm
• GO:0005783 endoplasmic reticulum
• GO:0005789 endoplasmic reticulum membrane
• GO:0016020 membrane
• GO:0043231 intracellular membrane-bounded organelle

External links

• PDB: RCSB:4zv8, PDBe:4zv8, PDBj:4zv8
• PDBsum: 4zv8
• PubMed: 26982502
• UniProt: P20813|CP2B6_HUMAN Cytochrome P450 2B6 (Gene Name=CYP2B6)