1TQW

Golgi alpha-Mannosidase II In Complex With A Diastereomer of Seleno-Salacinol

• PDB DOI: https://doi.org/10.2210/pdb1TQW/pdb

• Classification: HYDROLASE
• Organism(s): Drosophila melanogaster
• Expression System: Drosophila melanogaster
• Mutation(s): No 


• Deposited: 2004-06-18 Released: 2005-02-01 
• Deposition Author(s): Kuntz, D.A., Ghavami, A., Johnston, B.D., Pinto, B.M., Rose, D.R.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.20 Å
• R-Value Free: 0.184 
• R-Value Work: 0.175 
• R-Value Observed: 0.175 

Starting Model: experimental

Literature

Insights into the Mechanism of Drosophila melanogaster Golgi a-Mannosidase II Through Crystallographic Analysis of the Interactions with Analogues of the Naturally Occurring Glycomimetic Salacinol

Kuntz, D.A., Ghavami, A., Johnston, B.D., Pinto, B.M., Rose, D.R.

(2005) Tetrahedron Asymmetry 16: 25-32

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 120.61 kDa 
• Atom Count: 9,432 
• Modelled Residue Count: 1,014 
• Deposited Residue Count: 1,045 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Alpha-mannosidase II	A	1,045	Drosophila melanogaster	Mutation(s): 0  Gene Names: ALPHA-MAN-II, GMII, CG18474/CG18802/CG8139 EC: 3.2.1.114
UniProt
Find proteins for Q24451 (Drosophila melanogaster) Explore Q24451  Go to UniProtKB:  Q24451
Glycosylation
Glycosylation Sites: 1		Go to GlyGen: Q24451-1

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
BLT	D [auth A]	1,4-DIDEOXY-1,4-[[2R,3R)-2,4-DIHYDROXY-3-(SULFOXY)BUTYL]EPISELENONIUMYLIDENE]-D-ARABINITOL INNER SALT C9 H18 O9 S Se WLNWUNIGATZIKW-KNCZUUIASA-L
NAG	B [auth A]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
MRD	E [auth A], F [auth A]	(4R)-2-METHYLPENTANE-2,4-DIOL C6 H14 O2 SVTBMSDMJJWYQN-RXMQYKEDSA-N
ZN	C [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.20 Å
• R-Value Free: 0.184 
• R-Value Work: 0.175 
• R-Value Observed: 0.175 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 69.007	α = 90
b = 110.044	β = 90
c = 138.946	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
CNS	refinement
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2005-02-01 
Deposition Author(s): Kuntz, D.A., Ghavami, A., Johnston, B.D., Pinto, B.M., Rose, D.R.

Revision History  

• Version 1.0: 2005-02-01
  Type: Initial release
  
• Version 1.1: 2007-10-16
  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: Data collection, Database references, Derived calculations, Structure summary
• Version 1.4: 2023-08-23
  Changes: Data collection, Database references, Refinement description, Structure summary