1MX9

Crystal Structure of Human Liver Carboxylesterase in complexed with naloxone methiodide, a heroin analogue

• PDB DOI: https://doi.org/10.2210/pdb1MX9/pdb

• Classification: HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2002-10-01 Released: 2003-04-08 
• Deposition Author(s): Bencharit, S., Morton, C.L., Xue, Y., Potter, P.M., Redinbo, M.R.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.280 
• R-Value Work: 0.214 
• R-Value Observed: 0.214 

Biological Assembly 1  

Global Symmetry: Dihedral - D3  (Explore in 3D)
Global Stoichiometry: Homo 6-mer - A6 

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

Biological Assembly 2  

Global Symmetry: Dihedral - D3  (Explore in 3D)
Global Stoichiometry: Homo 6-mer - A6 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 733.12 kDa 
• Atom Count: 51,134 
• Modelled Residue Count: 6,378 
• Deposited Residue Count: 6,576 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
liver Carboxylesterase I	A, B, C, D, E, F, G, H, I, J, K, L	548	Homo sapiens	Mutation(s): 0  EC: 3.1.1.1
UniProt & NIH Common Fund Data Resources
Find proteins for P23141 (Homo sapiens) Explore P23141  Go to UniProtKB:  P23141
PHAROS:  P23141 GTEx:  ENSG00000198848

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NLX	AA [auth G], CA [auth H], EA [auth I], GA [auth J], IA [auth K], KA [auth L], O [auth A], Q [auth B], S [auth C], U [auth D], W [auth E], Y [auth F]	(5A,17R)-4,5-EPOXY-3,14-DIHYDROXY-17-METHYL-6-OXO-17-(2-PROPENYL)-MORPHINANIUM C20 H24 N O4 PCSQOABIHJXZMR-YNUHATHGSA-O
NAG	BA [auth H], DA [auth I], FA [auth J], HA [auth K], JA [auth L], M [auth A], N [auth A], P [auth B], R [auth C], T [auth D], V [auth E], X [auth F], Z [auth G]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.280 
• R-Value Work: 0.214 
• R-Value Observed: 0.214 
• Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 91.174	α = 90.28
b = 120.711	β = 89.32
c = 177.017	γ = 99.22

Software Package:

Software Name	Purpose
HKL-2000	data collection
SCALEPACK	data scaling
AMoRE	phasing
CNS	refinement
HKL-2000	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-04-08 
Deposition Author(s): Bencharit, S., Morton, C.L., Xue, Y., Potter, P.M., Redinbo, M.R.

Revision History  

• Version 1.0: 2003-04-08
  Type: Initial release
  
• Version 1.1: 2008-04-28
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Data collection, Database references, Derived calculations, Structure summary