3AH2	Toxin	date	Apr 13, 2010
title	Ha1 Subcomponent Of Botulinum Type C Progenitor Toxin Comple N-Acetylgalactosamine
authors	T.Nakamura, T.Tonozuka, A.Ide, T.Yuzawa, K.Oguma, A.Nishikawa
compound		source
Molecule: Main Hemagglutinin Component Chain: A, B Synonym: Ha1 Subcomponent Of Botulinum Type C Progenitor To Hemagglutinin Component Ha1, Ha 33 Kda Subunit, Ha1; Engineered: Yes		Organism_scientific: Clostridium Botulinum Organism_taxid: 1491 Strain: Type C Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Jm109 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pmal-2x Flag-Ha1
symmetry	Space Group: C 1 2 1	R_factor 0.174 R_Free 0.203
crystal cell	length a length b length c angle alpha angle beta angle gamma 137.937 62.061 82.426 90.00 104.22 90.00
method	X-Ray Diffraction	resolution	1.70 Å
ligand	NGA	enzyme
note	3AH2 supersedes 2EHM
Gene Ontology	Chain Function Process Component A, B
Primary reference	Sugar-binding sites of the HA1 subcomponent of Clostridium botulinum type C progenitor toxin., Nakamura T, Tonozuka T, Ide A, Yuzawa T, Oguma K, Nishikawa A, J Mol Biol. 2008 Feb 22;376(3):854-67. Epub 2007 Dec 23. PMID:18178224

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (114 Kb) [Save to disk] Biological Unit Coordinates (3ah2.pdb1.gz) 56 Kb Biological Unit Coordinates (3ah2.pdb2.gz) 56 Kb Biological Unit Coordinates (3ah2.pdb3.gz) 109 Kb LPC: Ligand-Protein Contacts for 3AH2 CSU: Contacts of Structural Units for 3AH2 Structure Factors (624 Kb) Retrieve 3AH2 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3AH2 from S2C, [Save to disk] Re-refined 3ah2 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3AH2 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 3AH2

Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 3AH2, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3ah2_B] [3ah2] [3ah2_A] SWISS-PROT database: Domain organization of by SWISSPFAM Domain found in 3AH2: [RICIN ] by SMART

Other resources with information on 3AH2

Community annotation for 3AH2 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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