Structure of PDB 1m00 Chain B

Receptor sequence

>1m00B (length=410) Species: 10116 (Rattus norvegicus)

RFLKVKNWETDVVLTDTLHLKSTLETGCTEHICMGSIMLPVRTKDQLFPL
AKEFLDQYYSSIKRFGSKAHMDRLEEVNKEIESTSTYQLKDTELIYGAKH
AWRNASRCVGRIQWSKLQVFDARDCTTAHGMFNYICNHVKYATNKGNLRS
AITIFPQRTDGKHDFRVWNSQLIRYAGYKQPDGSTLGDPANVQFTEICIQ
QGWKAPRGRFDVLPLLLQANGNDPELFQIPPELVLEVPIRHPKFDWFKDL
GLKWYGLPAVSNMLLEIGGLEFSACPFSGWYMGTEIGVRDYCDNSRYNIL
EEVAKKMDLDMRKTSSLWKDQALVEINIAVLYSFQSDKVTIVDHHSATES
FIKHMENEYRCRGGCPADWVWIVPPMSGSITPVFHQEMLNYRLTPSFEYQ
PDPWNTHVWK

3D structure

• PDB: 1m00 The Novel Binding Mode of N-Alkyl-N'-Hydroxyguanidine to Neuronal Nitric Oxide Synthase Provides Mechanistic Insights into NO Biosynthesis
• Chain: B
• Resolution: 2.05 Å

Enzymatic activity

• Catalytic site (original residue number in PDB): C415 R418 W587 E592
• Catalytic site (residue number reindexed from 1): C108 R111 W280 E285
• 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	ZN	B	C326 C331	C28 C33
BS02	H4B	B	F691 H692 E694	F384 H385 E387
BS03	HEM	B	W409 C415 G417 F584 G586 W587 E592 W678 Y706	W102 C108 G110 F277 G279 W280 E285 W371 Y399
BS04	H4B	B	S334 R596 V677 W678	S36 R289 V370 W371
BS05	BHH	B	Q478 P565 V567 G586 E592	Q171 P258 V260 G279 E285

Gene Ontology

Molecular Function

• GO:0004517 nitric-oxide synthase activity
• GO:0020037 heme binding

Biological Process

• GO:0006809 nitric oxide biosynthetic process

External links

• PDB: RCSB:1m00, PDBe:1m00, PDBj:1m00
• PDBsum: 1m00
• PubMed: 12437343
• UniProt: P29476|NOS1_RAT Nitric oxide synthase 1 (Gene Name=Nos1)