6NSE

BOVINE ENDOTHELIAL NITRIC OXIDE SYNTHASE, H4B-FREE, CANAVANINE COMPLEX

• PDB DOI: https://doi.org/10.2210/pdb6NSE/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Bos taurus
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 1999-01-13 Released: 2002-05-29 
• Deposition Author(s): Raman, C.S., Li, H., Martasek, P., Masters, B.S.S., Poulos, T.L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.35 Å
• R-Value Free: 0.272 
• R-Value Work: 0.211 
• R-Value Observed: 0.211 

Literature

Crystal Structures of the Heme Domain of Bovine Endothelial Nitric Oxide Synthase Complexed with Arginine Analogues

Raman, C.S., Li, H., Martasek, P., Masters, B.S.S., Poulos, T.L.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 101.74 kDa 
• Atom Count: 6,984 
• Modelled Residue Count: 830 
• Deposited Residue Count: 888 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PROTEIN (NITRIC OXIDE SYNTHASE)	A, B	444	Bos taurus	Mutation(s): 0  EC: 1.14.13.39
UniProt
Find proteins for P29473 (Bos taurus) Explore P29473  Go to UniProtKB:  P29473

Small Molecules

Ligands 6 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HEM	E [auth A], K [auth B]	PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L
GGB	F [auth A], L [auth B]	L-CANAVANINE C5 H12 N4 O3 FSBIGDSBMBYOPN-VKHMYHEASA-N
CAD	G [auth A], M [auth B]	CACODYLIC ACID C2 H7 As O2 OGGXGZAMXPVRFZ-UHFFFAOYSA-N
GOL	H [auth A], I [auth A], N [auth B]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
ZN	D [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N
ACT	C [auth A], J [auth B]	ACETATE ION C2 H3 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.35 Å
• R-Value Free: 0.272 
• R-Value Work: 0.211 
• R-Value Observed: 0.211 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 58.4	α = 90
b = 106.74	β = 90
c = 156.36	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2002-05-29 
Deposition Author(s): Raman, C.S., Li, H., Martasek, P., Masters, B.S.S., Poulos, T.L.

Revision History  

• Version 1.0: 2002-05-29
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 2.0: 2023-11-15
  Changes: Atomic model, Data collection, Database references, Derived calculations