ISDA

Deposition Date 2014-08-25

Release Date 2014-09-17

Last Version Date 2023-12-27

Entry Detail

PDB ID:

4W8J

Keywords:

TOXIN

Title:

Structure of the full-length insecticidal protein Cry1Ac reveals intriguing details of toxin packaging into in vivo formed crystals

Biological Source:

Source Organism:

Bacillus thuringiensis serovar kurstaki str. HD73 (Taxon ID: 1279365)

Host Organism:

Bacillus thuringiensis

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.78 Å

R-Value Free:

0.33

R-Value Work:

0.22

R-Value Observed:

0.23

Space Group:

P 41 21 2

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Pesticidal crystal protein cry1Ac
Mutations:C661S,C730S,C796S,C802S,C814S,C816S,C822S,C837S,C990S,C1025S,C1045S,C1063S,C1076S,C1125S
Chain IDs:A
Chain Length:1184
Number of Molecules:1
Biological Source:Bacillus thuringiensis serovar kurstaki str. HD73

UniProt ID:P05068 Pfam ID:PF03945, PF00555, PF03944, PF17997, PF21463

Primary Citation

Structure of the full-length insecticidal protein Cry1Ac reveals intriguing details of toxin packaging into in vivo formed crystals.

Evdokimov, A.G, Moshiri, F, Sturman, E.J, Rydel, T.J, Zheng, M, Seale, J.W, Franklin, S.Show

Protein Sci. 23 1491 1497 (2014)

PMID: 25139047 DOI: 10.1002/pro.2536

Abstact

For almost half a century, the structure of the full-length Bacillus thuringiensis (Bt) insecticidal protein Cry1Ac has eluded researchers, since Bt-derived crystals were first characterized in 1965. Having finally solved this structure we report intriguing details of the lattice-based interactions between the toxic core of the protein and the protoxin domains. The structure provides concrete evidence for the function of the protoxin as an enhancer of native crystal packing and stability.

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Primary Citation of related structures