1AF9	Clostridial Neurotoxin	date	Mar 24, 1997
title	Tetanus Neurotoxin C Fragment
authors	T.C.Umland, L.Wingert, S.Swaminathan, W.F.Furey, J.J.Schmidt, M.Sax
compound		source
Molecule: Tetanus Neurotoxin Chain: A Fragment: C Fragment Ec: 3.4.24.68 Engineered: Yes Mutation: Yes		Organism_scientific: Clostridium Tetani Organism_taxid: 1513 Expression_system: Escherichia Coli Expression_system_taxid: 562 Other_details: Purchased From Boehringer Mannheim
symmetry	Space Group: P 21 21 21	R_factor 0.161 R_Free 0.245
crystal cell	length a length b length c angle alpha angle beta angle gamma 67.400 79.700 91.100 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.70 Å
ligand		enzyme	Hydrolase E.C.3.4.24.68 BRENDA
related structures	by homologous chain: 1DFQ
Gene Ontology	Chain Function Process Component A
Primary reference	Structure of the receptor binding fragment HC of tetanus neurotoxin., Umland TC, Wingert LM, Swaminathan S, Furey WF, Schmidt JJ, Sax M, Nat Struct Biol 1997 Oct;4(10):788-92. PMID:9334741

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (78 Kb) [Save to disk] Biological Unit Coordinates (1af9.pdb1.gz) 75 Kb CSU: Contacts of Structural Units for 1AF9 Likely Quarternary Molecular Structure file(s) for 1AF9 Structure Factors (105 Kb) Retrieve 1AF9 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1AF9 from S2C, [Save to disk] Re-refined 1af9 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1AF9 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 1AF9

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 1AF9, from MSDmotif at EBI Genome occurence of 1AF9's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1af9_2, region 1111-1315 [Jmol] [rasmolscript] [script source]     - Domain d1af9_1, region 875-1110 [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1af9_A] [1af9] SWISS-PROT database: [P04958] Belongs to the botulinum and tetanus toxin (btt) family according to TCDB. Domain organization of [TETX_CLOTE] by SWISSPFAM

Other resources with information on 1AF9

Community annotation for 1AF9 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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