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A leucine‐rich repeat protein of carrot that exhibits antifreeze activity
Author(s) -
Meyer Knut,
Keil Michael,
Naldrett Michael J
Publication year - 1999
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/s0014-5793(99)00280-x
Subject(s) - antifreeze protein , leucine , chemistry , leucine rich repeat , antifreeze , biochemistry , amino acid , food science , receptor , organic chemistry
A gene encoding an antifreeze protein (AFP) was isolated from carrot ( Daucus carota ) using sequence information derived from the purified protein. The carrot AFP is highly similar to the polygalacturonase inhibitor protein (PGIP) family of apoplastic plant leucine‐rich repeat (LRR) proteins. Expression of the AFP gene is rapidly induced by low temperatures. Furthermore, expression of the AFP gene in transgenic Arabidopsis thaliana plants leads to an accumulation of antifreeze activity. Our findings suggest that a new type of plant antifreeze protein has recently evolved from PGIPs.