Structure of PDB 4k5e Chain A

Receptor sequence
>4k5eA (length=407) Species: 10116 (Rattus norvegicus) [Search protein sequence]
RFLKVKNWETDVVLTDTLHLKSTLETGCTEHICMGSIMLPTKDQLFPLAK
EFLDQYYSSIKRFGSKAHMDRLEEVNKEIESTSTYQLKDTELIYGAKHAW
RNASRCVGRIQWSKLQVFDARDCTTAHGMFNYICNHVKYATNKGNLRSAI
TIFPQRTDGKHDFRVWNSQLIRYAGYKQPDGSTLGDPANVQFTEICIQQG
WKAPRGRFDVLPLLLQANGNDPELFQIPPELVLEVPIRHPKFDWFKDLGL
KWYGLPAVSNMLLEIGGLEFSACPFSGWYMGTEIGVRDCCDNSRYNILEE
VAKKMDLDMRKTSSLWKDQALVEINIAVLYSFQSDKVTIVDHHSATESFI
KHMENEYRCRGGCPADWVWIVPPMSGSITPVFHQEMLNYRLTPSFEYQPD
PWNTHVW
3D structure
PDB4k5e Chiral linkers to improve selectivity of double-headed neuronal nitric oxide synthase inhibitors.
ChainA
Resolution1.892 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 F584 W587 E592 W678 F704 Y706 W100 R105 C106 V107 F275 W278 E283 W369 F395 Y397
BS02 H4B A S334 R596 V677 W678 S36 R287 V368 W369
BS03 1Q7 A Q478 R481 P565 V567 F584 W587 E592 Q169 R172 P256 V258 F275 W278 E283 MOAD: Ki=32nM
BindingDB: Ki=32nM
BS04 ZN A C326 C331 C28 C33
BS05 H4B A F691 E694 F382 E385
Gene Ontology
Molecular Function
GO:0004517 nitric-oxide synthase activity
Biological Process
GO:0006809 nitric oxide biosynthetic process

View graph for
Molecular Function

View graph for
Biological Process
External links
PDB RCSB:4k5e, PDBe:4k5e, PDBj:4k5e
PDBsum4k5e
PubMed23993333
UniProtP29476|NOS1_RAT Nitric oxide synthase 1 (Gene Name=Nos1)

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