Processed products of the hevein precursor in the latex of the rubber tree (Hevea brasiliensis)
- 24 April 1995
- journal article
- research article
- Published by Wiley in FEBS Letters
- Vol. 363 (3) , 211-213
- https://doi.org/10.1016/0014-5793(95)00309-w
Abstract
The 20 kDa precursor of hevein and its C-terminal 14 kDa domain have been isolated. Sequence analysis of the C-terminal tryptic peptides of these proteins and comparison with the cDNA sequence indicate that they represent mature forms from which a C-terminal propeptide, possibly involved in vacuolar targeting, has been removed. The molar ratio of hevein to the C-terminal domain in the lutoid-body fraction of rubber latex is about 30:1. This indicates that not only the pre- and propeptides but also the 14 kDa domain are removed by proteolysis or other processes in the latex vessel after the processing of hevein has taken place.Keywords
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