Reference: Mtwisha L, et al. (1998) HSP 12 is a LEA-like protein in Saccharomyces cerevisiae. Plant Mol Biol 37(3):513-21

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Abstract


LEA group I, II and III antibodies all recognised soluble proteins present in an extract of yeast (Saccharomyces cerevisiae). The smaller protein of the two recognised by the group I antibody displayed identical migration on SDS-PAGE to the pea seed LEA group I protein against which the antibody was raised. However, the antibody failed to recognise the predominant protein present after heating the extract at 80 degrees C for 10 min. This predominant protein, which also displayed identical migration on SDS-PAGE, was purified from the supernatant of the extract heated at 80 degrees C for 10 min. Peptide sequencing after CNBr cleavage identified the isolated protein as the heat shock protein HSP 12. Despite a previous report that HSP 12 is a heat shock protein, HSP 12 was found to increase in yeast grown at 37 degrees C compared with growth at 30 degrees C. However, increased amounts of HSP 12 were present in yeast after entry into stationary phase; this was enhanced by growth in the osmolytes NaCl and mannitol.

Reference Type
Journal Article | Research Support, Non-U.S. Gov't
Authors
Mtwisha L, Brandt W, McCready S, Lindsey GG
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