2AH2	Hydrolase	date	Jul 27, 2005
title	Trypanosoma Cruzi Trans-Sialidase In Complex With 2,3-Difluo Acid (Covalent Intermediate)
authors	M.F.Amaya, A.G.Watts, I.Damager, A.Wehenkel, T.Nguyen, A.Buschiaz G.Paris, A.C.Frasch, S.G.Withers, P.M.Alzari
compound		source
Molecule: Trans-Sialidase Chain: A 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: Top10f' Expression_system_vector_type: Plasmid Expression_system_plasmid: Ptrchisa
symmetry	Space Group: P 1 21 1	R_factor 0.099 R_Free 0.152
crystal cell	length a length b length c angle alpha angle beta angle gamma 54.149 128.690 54.298 90.00 108.74 90.00
method	X-Ray Diffraction	resolution	1.60 Å
ligand	CL, FSI, GOL, IPA	enzyme	Hydrolase E.C.3.2.1.18 BRENDA
note	2AH2 supersedes 1S0K
Gene Ontology	Chain Function Process Component A
Primary reference	Structural insights into the catalytic mechanism of Trypanosoma cruzi trans-sialidase., Amaya MF, Watts AG, Damager I, Wehenkel A, Nguyen T, Buschiazzo A, Paris G, Frasch AC, Withers SG, Alzari PM, Structure (Camb) 2004 May;12(5):775-84. PMID:15130470

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (243 Kb) [Save to disk] Biological Unit Coordinates (2ah2.pdb1.gz) 231 Kb LPC: Ligand-Protein Contacts for 2AH2 CSU: Contacts of Structural Units for 2AH2 Likely Quarternary Molecular Structure file(s) for 2AH2 Structure Factors (661 Kb) Retrieve 2AH2 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2AH2 from S2C, [Save to disk] Re-refined 2ah2 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2AH2 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 2AH2

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 2AH2, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2ah2] [2ah2_A] SWISS-PROT database: [Q26966] Domain organization of [Q26966_TRYCR] by SWISSPFAM

Other resources with information on 2AH2

Community annotation for 2AH2 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

Movements, Movies and Images

Images from IMB Jena Image Library of Biological Macromolecules.

You may enter another PDB ID code

Go [Back], to the [PDB Lite page], to the [OCA Search page] or to the [PDB Home page]

---

OCA© by Jaime Prilusky, 1996-2014,2022 Bioinformatics Unit Weizmann Institute of Science

---