SNAREs are membrane-associated proteins that play a central role in vesicle targeting and intra-cellular membrane fusion reactions in eukaryotic cells. Here we describe the identification of AtBS14a and AtBS14b, putative SNAREs from Arabidopsis thaliana that share 60% amino acid sequence identity. Both AtBS14a and BS14b are dosage suppressors of the temperature-sensitive growth defect in sft1-1 cells and over-expression of either AtBS14a or AtBS14b can support the growth of sft1Delta cells but not bet1Delta cells. These data together with structure-function and biochemical studies presented herein suggest that AtBS14a and AtBS14b share properties that are consistent with them being members of the Bet1/Sft1 SNARE protein family.

• PMID: 11445081
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Journal Article | Research Support, Non-U.S. Gov't

Authors

Tai WC, Banfield DK

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