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Mol Plant Microbe Interact. 2001 Mar;14(3):412-5.

The C-terminal dilysine motif for targeting to the endoplasmic reticulum is not required for Cf-9 function.

Author information

1
Laboratory of Phytopathology, Wageningen University, The Netherlands.

Abstract

The tomato resistance gene Cf-9 encodes a membrane-anchored, receptor-like protein that mediates specific recognition of the extracellular elicitor protein AVR9 of Cladosporium fulvum. The C-terminal dilysine motif (KKRY) of Cf-9 suggests that the protein resides in the endoplasmic reticulum. Previously, two conflicting reports on the subcellular location of Cf-9 were published. Here we show that the AARY mutant version of Cf-9 is still functional in mediating AVR9 recognition, suggesting that functional Cf-9 resides in the plasma membrane. The data presented here and in reports by others can be explained by masking the dilysine signal of Cf-9 with other proteins.

PMID:
11277439
DOI:
10.1094/MPMI.2001.14.3.412
[Indexed for MEDLINE]
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