Structure of PDB 4kch Chain A

Receptor sequence
>4kchA (length=407) Species: 10116 (Rattus norvegicus) [Search protein sequence]
RFLKVKNWETDVVLTDTLHLKSTLETGCTEHICMGSIMLPTKDQLFPLAK
EFLDQYYSSIKRFGSKAHMDRLEEVNKEIESTSTYQLKDTELIYGAKHAW
RNASRCVGRIQWSKLQVFDARDCTTAHGMFNYICNHVKYATNKGNLRSAI
TIFPQRTDGKHDFRVWNSQLIRYAGYKQPDGSTLGDPANVQFTEICIQQG
WKAPRGRFDVLPLLLQANGNDPELFQIPPELVLEVPIRHPKFDWFKDLGL
KWYGLPAVSNMLLEIGGLEFSACPFSGWYMGTEIGVRDYCDNSRYNILEE
VAKKMDLDMRKTSSLWKDQALVEINIAVLYSFQSDKVTIVDHHSATESFI
KHMENEYRCRGGCPADWVWIVPPMSGSITPVFHQEMLNYRLTPSFEYQPD
PWNTHVW
3D structure
PDB4kch Potent and Selective Double-Headed Thiophene-2-carboximidamide Inhibitors of Neuronal Nitric Oxide Synthase for the Treatment of Melanoma.
ChainA
Resolution2.15 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) C415 R418 W587 E592
Catalytic site (residue number reindexed from 1) C106 R109 W278 E283
Enzyme Commision number 1.14.13.39: nitric-oxide synthase (NADPH).
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 HEM A W409 R414 C415 V416 M570 F584 W587 E592 W678 F704 Y706 W100 R105 C106 V107 M261 F275 W278 E283 W369 F395 Y397
BS02 H4B A S334 M336 R596 V677 W678 S36 M38 R287 V368 W369
BS03 H38 A M336 Q478 P565 V567 F584 S585 E592 Y706 M38 Q169 P256 V258 F275 S276 E283 Y397 MOAD: Ki=0.787uM
BindingDB: Ki=787nM
BS04 ZN A C326 C331 C28 C33
BS05 H4B A F691 Q693 E694 F382 Q384 E385
Gene Ontology
Molecular Function
GO:0004517 nitric-oxide synthase activity
Biological Process
GO:0006809 nitric oxide biosynthetic process

View graph for
Molecular Function
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Biological Process
External links
PDB RCSB:4kch, PDBe:4kch, PDBj:4kch
PDBsum4kch
PubMed24447275
UniProtP29476|NOS1_RAT Nitric oxide synthase 1 (Gene Name=Nos1)

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