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Gene Review

SNAP33  -  soluble N-ethylmaleimide-sensitive factor...

Arabidopsis thaliana

Synonyms: ATSNAP33, ATSNAP33B, MAF19.2, MAF19_2, SNP33
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Disease relevance of SNAP33

  • The expression of AtSNAP33 increased after inoculation with the pathogens Plectosporium tabacinum and virulent and avirulent forms of Peronospora parasitica and Pseudomonas syringae pv tomato [1].

High impact information on SNAP33


Associations of SNAP33 with chemical compounds

  • In contrast to the situation in infected leaves, the expression of AtSNAP33 in systemic leaves was fully SA dependent [1].

Physical interactions of SNAP33

  • Expressed and purified AtSNAP33 also bound directly to the cytosolic domain of NtSyr1 and was sensitive to proteolysis by these toxins, suggesting that NtSyr1, a tobacco homologue of AtSNAP33, and coordinate SNAREs are likely to associate as partners for function in vivo [3].

Other interactions of SNAP33

  • The level of AtSNAP33 decreased slightly in leaves inoculated with P. parasitica in the NahG plants, and eds5 and sid2 mutants that are unable to accumulate salicylic acid (SA) after pathogen inoculation, indicating a partial dependence on SA [1].


  1. The expression of the t-SNARE AtSNAP33 is induced by pathogens and mechanical stimulation. Wick, P., Gansel, X., Oulevey, C., Page, V., Studer, I., Dürst, M., Sticher, L. Plant Physiol. (2003) [Pubmed]
  2. Functional characterization of the KNOLLE-interacting t-SNARE AtSNAP33 and its role in plant cytokinesis. Heese, M., Gansel, X., Sticher, L., Wick, P., Grebe, M., Granier, F., Jurgens, G. J. Cell Biol. (2001) [Pubmed]
  3. Protein-binding partners of the tobacco syntaxin NtSyr1. Kargul, J., Gansel, X., Tyrrell, M., Sticher, L., Blatt, M.R. FEBS Lett. (2001) [Pubmed]
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