Structure of PDB 4n4l Chain A Binding Site BS02

Receptor Information
>4n4l Chain A (length=497) Species: 174633 (Candidatus Kuenenia stuttgartiensis) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
GPTFQDVASQVFGQPVGPDNDGTLYIFGLTAKYTEPEYVDGRGPYKSFLK
MLPSIRWYDPEHYWTNGSQTEGVFKNEECVLCHTVQTPTIVNDWKQSSHG
SKDIRRGIGIKKDGKPVEDLVGCADCHGNNHQKLEMPTYKLCNDCHPKET
AEHRAGGLGSHTHAYTVNVLEFSWHVGKPAEEVTGCAHCHAIAENRCSGC
HTRHKFDPAEARKPTACRVCHMGIDHDEWAMYNTSIHGALYEAESARMDW
GKKLKKGNYRVPTCAYCHMQNGDHNPQRFGTIYSDMGMFQVDRGAPKHKA
KRDSWIKLCQDCHSPRFAADKLKEMDAGVNLSFTKWREAAAVIVGCYLDG
VVDPMPEGSAPDWYGHYTFSLLPGGDPRFYATSNLERLGLEMICYLTGNV
YKAYAHMSMYNQTYGNGSAFEQDRKLVEIKTEAAKLRRFAAIEKKIGLEH
KSADFWKHGEYLDLLPGWKRKPGDVDVEWFKRTDIPHRANADAGVEI
Ligand information
Ligand IDHEC
InChIInChI=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,9-12H2,1-6H3,(H,39,40)(H,41,42);/q-4;+4/b21-7?,22-8?,26-13-,29-14-,30-15-,31-16-;
InChIKeyHXQIYSLZKNYNMH-LJNAALQVSA-N
SMILES
SoftwareSMILES
ACDLabs 10.04O=C(O)CCC1=C(C2=CC6=C(C(=C/C)\C5=CC4=C(C(\C3=Cc7c(c(c8C=C1N2[Fe](N34)(N56)n78)CCC(=O)O)C)=C/C)C)C)C
OpenEye OEToolkits 1.5.0CC=C1C(=C2C=C3C(=CC)C(=C4N3[Fe]56N2C1=Cc7n5c(c(c7C)CCC(=O)O)C=C8N6C(=C4)C(=C8CCC(=O)O)C)C)C
CACTVS 3.341C\C=C1/C(=C2C=C3N4C(=Cc5n6c(C=C7N8C(=C(C)\C7=C/C)C=C1N2[Fe@@]468)c(C)c5CCC(O)=O)C(=C3C)CCC(O)=O)C
CACTVS 3.341CC=C1C(=C2C=C3N4C(=Cc5n6c(C=C7N8C(=C(C)C7=CC)C=C1N2[Fe]468)c(C)c5CCC(O)=O)C(=C3C)CCC(O)=O)C
FormulaC34 H34 Fe N4 O4
NameHEME C
ChEMBL
DrugBank
ZINC
PDB chain4n4l Chain A Residue 613 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB4n4l Structural Basis of Biological NO Generation by Octaheme Oxidoreductases.
Resolution1.9 Å
Binding residue
(original residue number in PDB)
W101 S105 Q106 T107 F111 C116 C119 H120 Q123 C160 A161 G165 N166 H168 L171
Binding residue
(residue number reindexed from 1)
W64 S68 Q69 T70 F74 C79 C82 H83 Q86 C123 A124 G128 N129 H131 L134
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) H227 D262 H263 Y451
Catalytic site (residue number reindexed from 1) H190 D225 H226 Y414
Enzyme Commision number 1.7.2.9: hydroxylamine oxidase.
Gene Ontology
Molecular Function
GO:0016491 oxidoreductase activity
GO:0020037 heme binding
GO:0033740 hydroxylamine oxidoreductase activity
GO:0042802 identical protein binding
GO:0046872 metal ion binding
Biological Process
GO:0006809 nitric oxide biosynthetic process
GO:0019331 anaerobic respiration, using ammonium as electron donor
GO:0070207 protein homotrimerization
Cellular Component
GO:0044222 anammoxosome

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Molecular Function

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Biological Process

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Cellular Component
External links
PDB RCSB:4n4l, PDBe:4n4l, PDBj:4n4l
PDBsum4n4l
PubMed24302732
UniProtQ1PX48|HAO_KUEST Hydroxylamine oxidoreductase (Gene Name=hao)

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