1MN0

Crystal structure of galactose mutarotase from lactococcus lactis complexed with D-xylose

• PDB DOI: https://doi.org/10.2210/pdb1MN0/pdb

• Classification: ISOMERASE
• Organism(s): Lactococcus lactis
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2002-09-04 Released: 2002-09-18 
• Deposition Author(s): Thoden, J.B., Kim, J., Raushel, F.M., Holden, H.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.223 
• R-Value Work: 0.165 
• R-Value Observed: 0.168 

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 77.6 kDa 
• Atom Count: 5,841 
• Modelled Residue Count: 685 
• Deposited Residue Count: 694 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Aldose 1-epimerase	A, B	347	Lactococcus lactis	Mutation(s): 1  Gene Names: GALM EC: 5.1.3.3
UniProt
Find proteins for Q9ZB17 (Lactococcus lactis) Explore Q9ZB17  Go to UniProtKB:  Q9ZB17

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
XYS	C [auth A], E [auth B]	alpha-D-xylopyranose C5 H10 O5 SRBFZHDQGSBBOR-LECHCGJUSA-N
NI	D [auth A]	NICKEL (II) ION Ni VEQPNABPJHWNSG-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.223 
• R-Value Work: 0.165 
• R-Value Observed: 0.168 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 45.1	α = 90
b = 76.4	β = 90
c = 210.9	γ = 90

Software Package:

Software Name	Purpose
FRAMBO	data collection
SAINT	data reduction
TNT	refinement
SAINT	data scaling
TNT	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2002-09-18 
Deposition Author(s): Thoden, J.B., Kim, J., Raushel, F.M., Holden, H.M.

Revision History  

• Version 1.0: 2002-09-18
  Type: Initial release
  
• Version 1.1: 2008-04-28
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-10-11
  Changes: Refinement description
• Version 1.4: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Data collection, Database references, Derived calculations, Structure summary
• Version 1.5: 2021-10-27
  Changes: Database references, Structure summary
• Version 1.6: 2024-02-14
  Changes: Data collection, Refinement description