1MS4 Hydrolase date Sep 19, 2002
title Triclinic Form Of Trypanosoma Cruzi Trans-Sialidase
authors A.Buschiazzo, M.F.Amaya, M.L.Cremona, A.C.Frasch, P.M.Alzari
compound source
Molecule: Trans-Sialidase
Chain: A, B
Fragment: Enzymatic Globular Core
Ec: 3.2.1.18
Engineered: Yes
Mutation: Yes
Organism_scientific: Trypanosoma Cruzi
Organism_taxid: 5693
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Dh5alpha-Ft
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Ptrchisa
symmetry Space Group: P 1
R_factor 0.215 R_Free 0.272
crystal
cell
length a length b length c angle alpha angle beta angle gamma
50.950 74.220 87.467 85.94 84.20 88.38
method X-Ray Diffractionresolution 2.21 Å
ligand
enzyme Hydrolase E.C.3.2.1.18 BRENDA
related structures by homologous chain: 1MR5, 1MZ5
Gene
Ontology
ChainFunctionProcessComponent
A, B


Primary referenceThe crystal structure and mode of action of trans-sialidase, a key enzyme in Trypanosoma cruzi pathogenesis., Buschiazzo A, Amaya MF, Cremona ML, Frasch AC, Alzari PM, Mol Cell 2002 Oct;10(4):757-68. PMID:12419220
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (203 Kb) [Save to disk]
  • Biological Unit Coordinates (1ms4.pdb1.gz) 99 Kb
  • Biological Unit Coordinates (1ms4.pdb2.gz) 98 Kb
  • CSU: Contacts of Structural Units for 1MS4
  • Likely Quarternary Molecular Structure file(s) for 1MS4
  • Retrieve 1MS4 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1MS4 from S2C, [Save to disk]
  • View 1MS4 in 3D
  • Proteopedia, because life has more than 2D.
  • On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure.
  • On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.
  • Visual 3D analysis of 1MS4
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • 3D motif for 1MS4, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1ms4a2, region A:1-399 [Jmol] [rasmolscript] [script source]
        - Domain d1ms4a1, region A:409-632 [Jmol] [rasmolscript] [script source]
        - Domain d1ms4b2, region B:1-399 [Jmol] [rasmolscript] [script source]
        - Domain d1ms4b1, region B:409-632 [Jmol] [rasmolscript] [script source]
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1ms4] [1ms4_B] [1ms4_A]
  • SWISS-PROT database: [Q26966]
  • Domain organization of [Q26966_TRYCR] by SWISSPFAM
  • Other resources with information on 1MS4
  • Community annotation for 1MS4 at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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