Hiding in plain sight: the F segment and other conserved features of seed plant SK_n dehydrins.

ABSTRACT:

Main conclusion

An 11-residue amino acid sequence, DRGLFDFLGKK, is highly conserved in a subset of dehydrins found across the full spectrum of seed plants and here given the name F-segment. An 11-residue amino acid sequence, DRGLFDFLGKK, is highly conserved in identity and polarity in 130 non-redundant dehydrin sequences representing conifers and all major angiosperm groups. This newly described motif is here given the name F segment based on the pair of hydrophobic F residues at the core of the sequence. The majority of dehydrins previously classified as SK_n dehydrins contain one F segment N terminal to the S and K segments and can accordingly be reclassified as FSK_n dehydrins. A cysteine-containing variant, GCGMFDFLKK, occurs in a few rosid and asterid taxa.

SUBMITTER: Richard Strimbeck G 

PROVIDER: S-EPMC5393156 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature