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Structure of PDB 1p6n Chain A Binding Site BS03

Receptor Information
>1p6n Chain A (length=406) Species: 9913 (Bos taurus) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
GPKFPRVKNWELGSITYDTLCAQSQQDGPCTPRRCLGSLVLPRPPAEQLL
SQARDFINQYYSSIKRSGSQAHEERLQEVEAEVASTGTYHLRESELVFGA
KQAWRNAPRCVGRIQWGKLQVFDARDCSSAQEMFTYICNHIKYATNRGNL
RSAITVFPQRAPGRGDFRIWNSQLVRYAGYRQQDGSVRGDPANVEITELC
IQHGWTPGNGRFDVLPLLLQAPDEAPELFVLPPELVLEVPLEHPTLEWFA
ALGLRWYALPAVSNMLLEIGGLEFSAAPFSGWYMSTEIGTRNLCDPHRYN
ILEDVAVCMDLDTRTTSSLWKDKAAVEINLAVLHSFQLAKVTIVDHHAAT
VSFMKHLDNEQKARGGCPADWAWIVPPISGSLTPVFHQEMVNYILSPAFR
YQPDPW
Ligand information
Ligand IDDP9
InChIInChI=1S/C11H22N8O4/c12-7(2-1-3-15-11(14)18-19(22)23)10(21)17-6-4-8(9(13)20)16-5-6/h6-8,16H,1-5,12H2,(H2,13,20)(H,17,21)(H3,14,15,18)/t6-,7+,8+/m1/s1
InChIKeyIUFRDGFKAVLPFZ-CSMHCCOUSA-N
SMILES
SoftwareSMILES
CACTVS 3.341N[CH](CCCNC(=N)N[N+]([O-])=O)C(=O)N[CH]1CN[CH](C1)C(N)=O
CACTVS 3.341N[C@@H](CCCNC(=N)N[N+]([O-])=O)C(=O)N[C@H]1CN[C@@H](C1)C(N)=O
OpenEye OEToolkits 1.5.0C1C(CNC1C(=O)N)NC(=O)C(CCCNC(=N)N[N+](=O)[O-])N
OpenEye OEToolkits 1.5.0C1[C@H](CN[C@@H]1C(=O)N)NC(=O)[C@H](CCCNC(=N)N[N+](=O)[O-])N
ACDLabs 10.04O=C(NC1CC(C(=O)N)NC1)C(N)CCCNC(=[N@H])N[N+]([O-])=O
FormulaC11 H22 N8 O4
NameL-N(OMEGA)-NITROARGININE-(4R)-AMINO-L-PROLINE AMIDE
ChEMBLCHEMBL228077
DrugBankDB02077
ZINCZINC000013531446
PDB chain1p6n Chain A Residue 799 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB1p6n Structural basis for dipeptide amide isoform-selective inhibition of neuronal nitric oxide synthase.
Resolution2.5 Å
Binding residue
(original residue number in PDB)		Q249 P336 F355 S356 G357 W358 E363 Y477
Binding residue
(residue number reindexed from 1)		Q173 P260 F279 S280 G281 W282 E287 Y401
Annotation score1
Binding affinityMOAD: Ki=110uM
BindingDB: IC50=29000nM,Ki=128000nM
Enzymatic activity
Catalytic site (original residue number in PDB) C186 R189 W358 E363
Catalytic site (residue number reindexed from 1) C110 R113 W282 E287
Enzyme Commision number 1.14.13.39: nitric-oxide synthase (NADPH).
Gene Ontology
Molecular Function
GO:0004517 nitric-oxide synthase activity
GO:0020037 heme binding
Biological Process
GO:0006809 nitric oxide biosynthetic process

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Molecular Function
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Biological Process
External links
PDB RCSB:1p6n, PDBe:1p6n, PDBj:1p6n
PDBsum1p6n
PubMed14718923
UniProtP29473|NOS3_BOVIN Nitric oxide synthase 3 (Gene Name=NOS3)

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