ArticleProceedings of the National Academy of Sciences of the United States of America1999
Chloroplast small heat shock proteins: evidence for atypical evolution of an organelle-localized protein.
Article in Proceedings of the National Academy of Sciences of the United States of America, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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Who cites it
28 citing papers in PubMed, 71 citations in OpenAlex.
- A subfamily of the small heat shock proteins of the marine red alga Neopyropia yezoensis localizes in the chloroplast.Cell stress & chaperones · 2023Article
- Small heat shock proteins operate as molecular chaperones in the mitochondrial intermembrane space.Nature cell biology · 2023Article
- The Caenorhabditis elegans 12-kDa small heat shock proteins with little in vitro chaperone activity play crucial roles for its dauer formation, longevity, and reproduction.Protein science : a publication of the Protein Society · 2021Article
- Structural basis of substrate recognition and thermal protection by a small heat shock protein.Nature communications · 2021Article
- Molecular and genetic bases of heat stress responses in crop plants and breeding for increased resilience and productivity.Journal of experimental botany · 2020Review
- Ethylene andFrontiers in plant science · 2020Article
- The chloroplast-localized small heat shock protein Hsp21 associates with the thylakoid membranes in heat-stressed plants.Protein science : a publication of the Protein Society · 2017Article
- Transient regulation of three clustered tomato class-I small heat-shock chaperone genes by ethylene is mediated by SlMADS-RIN transcription factor.Scientific reports · 2017Article
- Massive expansion and differential evolution of small heat shock proteins with wheat (Triticum aestivum L.) polyploidization.Scientific reports · 2017Article
- Structural model of dodecameric heat-shock protein Hsp21: Flexible N-terminal arms interact with client proteins while C-terminal tails maintain the dodecamer and chaperone activity.The Journal of biological chemistry · 2017Article
- Genome-Wide Identification and Expression Profiling of Tomato Hsp20 Gene Family in Response to Biotic and Abiotic Stresses.Frontiers in plant science · 2016Article
- A first line of stress defense: small heat shock proteins and their function in protein homeostasis.Journal of molecular biology · 2015Review
- In vivo substrate diversity and preference of small heat shock protein IbpB as revealed by using a genetically incorporated photo-cross-linker.The Journal of biological chemistry · 2013Article
- Analysis of gene sequences indicates that quantity not quality of chloroplast small HSPs improves thermotolerance in C4 and CAM plants.Plant cell reports · 2012Article
- Comparative studies of thermotolerance: different modes of heat acclimation between tolerant and intolerant aquatic plants of the genus Potamogeton.Annals of botany · 2012Article
- Subunit arrangement in the dodecameric chloroplast small heat shock protein Hsp21.Protein science : a publication of the Protein Society · 2011Article
- Why proteins without an alpha-crystallin domain should not be included in the human small heat shock protein family HSPB.Cell stress & chaperones · 2010Article
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- A comparative genomic analysis of the small heat shock proteins in Caenorhabditis elegans and briggsae.Genetica · 2008Article
- Comparative analysis of the small heat shock proteins in three angiosperm genomes identifies new subfamilies and reveals diverse evolutionary patterns.Cell stress & chaperones · 2008Article
Corrections and comments
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Authors and funding
2 authors at 2 institutions in 1 country.
Funding
Abstract
Knowledge of the origin and evolution of gene families is critical to our understanding of the evolution of protein function. To gain a detailed understanding of the evolution of the small heat shock proteins (sHSPs) in plants, we have examined the evolutionary history of the chloroplast (CP)-localized sHSPs. Previously, these nuclear-encoded CP proteins had been identified only from angiosperms. This study reveals the presence of the CP sHSPs in a moss, Funaria hygrometrica. Two clones for CP sHSPs were isolated from a F. hygrometrica heat shock cDNA library that represent two distinct CP sHSP genes. Our analysis of the CP sHSPs reveals unexpected evolutionary relationships and patterns of sequence conservation. Phylogenetic analysis of the CP sHSPs with other plant CP sHSPs and eukaryotic, archaeal, and bacterial sHSPs shows that the CP sHSPs are not closely related to the cyanobacterial sHSPs. Thus, they most likely evolved via gene duplication from a nuclear-encoded cytosolic sHSP and not via gene transfer from the CP endosymbiont. Previous sequence analysis had shown that all angiosperm CP sHSPs possess a methionine-rich region in the N-terminal domain. The primary sequence of this region is not highly conserved in the F. hygrometrica CP sHSPs. This lack of sequence conservation indicates that sometime in land plant evolution, after the divergence of mosses from the common ancestor of angiosperms but before the monocot-dicot divergence, there was a change in the selective constraints acting on the CP sHSPs.
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