Structure of PDB 1aoq Chain A Binding Site BS01
Receptor Information
>1aoq Chain A (length=551) Species:
82367
(Paracoccus pantotrophus) [
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HKTRTDNRYEPSLDNLAQQDVAAPGAPEGVTALSDAQYNEANKIYFERCA
GCHGVLRKGATGKALTPDLTRDLGFDYLQSFITYASPAGMPNWGTSGELS
AEQVDLMANYLLLDPAAPPEFGMKEMRESWKVHVAPEDRPTQQMNDWDLE
NLFSVTLRDAGQIALIDGSTYEIKTVLDTGYAVHISRLSASGRYLFVIGR
DGKVNMIDLWMKEPTTVAEIKIGSEARSIETSKMEGWEDKYAIAGAYWPP
QYVIMDGETLEPKKIQSTRGMTYDEQEYHPEPRVAAILASHYRPEFIVNV
KETGKILLVDYTDLNNLKTTEISAERFLHDGGLDGSHRYFITAANARNKL
VVIDTKEGKLVAIEDTGGQTPHPGRGANFVHPTFGPVWATSHMGDDSVAL
IGTDPEGHPDNAWKILDSFPALGGGSLFIKTHPNSQYLYVDATLNPEAEI
SGSVAVFDIKAMTGDGSDPEFKTLPIAEWAGITEGQPRVVQGEFNKDGTE
VWFSVWNGKDQESALVVVDDKTLELKHVIKDERLVTPTGKFNVYNTMTDT
Y
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
Software
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
ChEMBL
DrugBank
DB18267
ZINC
PDB chain
1aoq Chain A Residue 601 [
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Receptor-Ligand Complex Structure
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PDB
1aoq
Haem-ligand switching during catalysis in crystals of a nitrogen-cycle enzyme.
Resolution
1.8 Å
Binding residue
(original residue number in PDB)
H17 N23 R64 C65 C68 H69 K79 L81 L89 Y93 F97 S102 P103
Binding residue
(residue number reindexed from 1)
H1 N7 R48 C49 C52 H53 K63 L65 L73 Y77 F81 S86 P87
Annotation score
1
Enzymatic activity
Catalytic site (original residue number in PDB)
C65 C68 H69 M106 H345 H388
Catalytic site (residue number reindexed from 1)
C49 C52 H53 M90 H329 H372
Enzyme Commision number
1.7.2.1
: nitrite reductase (NO-forming).
1.7.99.1
: hydroxylamine reductase.
Gene Ontology
Molecular Function
GO:0009055
electron transfer activity
GO:0016491
oxidoreductase activity
GO:0020037
heme binding
GO:0046872
metal ion binding
GO:0050418
hydroxylamine reductase activity
GO:0050421
nitrite reductase (NO-forming) activity
Cellular Component
GO:0042597
periplasmic space
View graph for
Molecular Function
View graph for
Cellular Component
External links
PDB
RCSB:1aoq
,
PDBe:1aoq
,
PDBj:1aoq
PDBsum
1aoq
PubMed
9311786
UniProt
P72181
|NIRS_PARPN Nitrite reductase (Gene Name=nirS)
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