Identification of sequence homology between the internal hydrophilic repeated motifs of group 1 late-embryogenesis-abundant proteins in plants and hydrophilic repeats of the general stress protein GsiB of Bacillus subtilis

R A Stacy; R B Aalen

doi:10.1007/s004250050424

Identification of sequence homology between the internal hydrophilic repeated motifs of group 1 late-embryogenesis-abundant proteins in plants and hydrophilic repeats of the general stress protein GsiB of Bacillus subtilis

Planta. 1998 Oct;206(3):476-8. doi: 10.1007/s004250050424.

Authors

R A Stacy¹, R B Aalen

Affiliation

¹ Division of General Genetics, University of Oslo, Norway. r.a.p.stacy@bio.uio.no

PMID: 9763714
DOI: 10.1007/s004250050424

Abstract

Late embryogenesis abundant (LEA) proteins are speculated to protect against water stress in plants. Group 1 LEA proteins are hydrophilic and vary mainly in the numbers of an extremely hydrophilic internal 20-amino-acid motif. This motif is present up to four times in Arabidopsis thaliana and Hordeum vulgare Group 1 proteins and has been described in numerous plant species. However, no similarity has yet been described between Group 1 genes or gene products and those from non-plant species. We report here the striking similarity between the repeated internal motif of Group 1 LEA proteins and a repeated hydrophilic motif present in a stress-related protein (GsiB) from Bacillus subtilis.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Amino Acid Sequence
Bacillus subtilis / chemistry*
Bacterial Proteins / chemistry*
Molecular Sequence Data
Plant Proteins / chemistry*
Sequence Homology, Amino Acid

Substances

Bacterial Proteins
Plant Proteins
late embryogenesis abundant protein, plant
gsiB protein, Bacillus subtilis