1MS0

Monoclinic form of Trypanosoma cruzi trans-sialidase, in complex with 3-deoxy-2,3-dehydro-N-acetylneuraminic acid (DANA)and lactose

Structural Biology Knowledgebase: 1MS0 SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.253
  • R-Value Work: 0.191

Literature

Macromolecules
Sequence Display for 1MS0

Classification: Hydrolase

Total Structure Weight: 144046.95

Macromolecule Entities
Molecule Chains Length Organism Details
trans-sialidase A, B 648 Trypanosoma cruzi EC#: 3.2.1.18 IUBMB
Fragment: enzymatic globular core
Mutation: N58F, S262T, R476H, V484L, S495K, V496G, E520K, E558V, D593G, I597D, H599R
Gene Name(s):
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 2 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
LAT
Query on LAT

A, B BETA-LACTOSE
C12 H22 O11
GUBGYTABKSRVRQ-DCSYEGIMSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
DAN
Query on DAN

A, B 2-DEOXY-2,3-DEHYDRO-N-ACETYL-NEURAMINIC ACID
C11 H17 N O8
JINJZWSZQKHCIP-UFGQHTETSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
DAN Ki: 12300000 nM (98) BindingDB

N/A in BindingMoad
Ki: 1230000 nM  PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.253
  • R-Value Work: 0.191
  • Space Group: P 1 21 1

Unit Cell:

Length (Å) Angle (°)
a = 65.22 α = 90.00
b = 133.37 β = 91.41
c = 90.61 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2002-09-19
  • Released Date: 2003-03-25
  • Deposition author(s): Buschiazzo, A., Amaya, M.F., Cremona, M.L., Frasch, A.C., Alzari, P.M.

Revision History

  • 2017-02-01
    Type: Entry authorship | Details: --
  • 2011-07-13
    Type: Non-polymer description | Details: chemical name/synonym update
  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4