ISDA

Deposition Date 2004-12-20

Release Date 2005-02-22

Last Version Date 2023-08-23

Entry Detail

PDB ID:

1YBI

Keywords:

TOXIN

Title:

Crystal structure of HA33A, a neurotoxin-associated protein from Clostridium botulinum type A

Biological Source:

Source Organism:

Clostridium botulinum (Taxon ID: 1491)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.50 Å

R-Value Free:

0.19

R-Value Work:

0.16

R-Value Observed:

0.16

Space Group:

P 21 21 2

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:non-toxin haemagglutinin HA34
Gene (Uniprot):HA-33
Chain IDs:A, B
Chain Length:288
Number of Molecules:2
Biological Source:Clostridium botulinum

UniProt ID:Q45871 Pfam ID:PF14200

Primary Citation

The Structure of the Neurotoxin-associated Protein HA33/A from Clostridium botulinum Suggests a Reoccurring beta-Trefoil Fold in the Progenitor Toxin Complex.

Arndt, J.W, Gu, J, Jaroszewski, L, Schwarzenbacher, R, Hanson, M.A, Lebeda, F.J, Stevens, R.C.Show

J.Mol.Biol. 346 1083 1093 (2005)

PMID: 15701519 DOI: 10.1016/j.jmb.2004.12.039

Abstact

The hemagglutinating protein HA33 from Clostridium botulinum is associated with the large botulinum neurotoxin secreted complexes and is critical in toxin protection, internalization, and possibly activation. We report the crystal structure of serotype A HA33 (HA33/A) at 1.5 A resolution that contains a unique domain organization and a carbohydrate recognition site. In addition, sequence alignments of the other toxin complex components, including the neurotoxin BoNT/A, hemagglutinating protein HA17/A, and non-toxic non-hemagglutinating protein NTNHA/A, suggests that most of the toxin complex consists of a reoccurring beta-trefoil fold.

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