ArticleMolecular and cellular biology1993
Localization of small heat shock proteins to the higher plant endomembrane system.
Article in Molecular and cellular biology, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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31 citing papers in PubMed, 97 citations in OpenAlex.
- Temperature-dependent Effects of Arbuscular Mycorrhizal Fungi on Growth, Antioxidant Activity, and Heat Shock Protein Expression in Long Bean (Vigna unguiculata ssp. sesquipedalis).Current microbiology · 2026Article
- Endoplasmic Reticulum Redoxome: Protein Folding and Beyond.Biochemistry · 2026Review
- Comparing four heat-inducible promoters in stably transformed sugarcane regarding spatial and temporal control of transgene expression reveals candidates to drive stem-preferred transgene expression.Frontiers in plant science · 2025Article
- Genome-Wide Identification and Characterization of Heat Shock Protein 20 Genes in Maize.Life (Basel, Switzerland) · 2022Article
- The sHSP22 Heat Shock Protein Requires the ABI1 Protein Phosphatase to Modulate Polar Auxin Transport and Downstream Responses.Plant physiology · 2018Article
- Tandem Duplication Events in the Expansion of the Small Heat Shock Protein Gene Family in Solanum lycopersicum (cv. Heinz 1706).G3 (Bethesda, Md.) · 2016Article
- Overexpression of small heat shock protein LimHSP16.45 in Arabidopsis enhances tolerance to abiotic stresses.PloS one · 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
- Global transcriptome analysis of constitutive resistance to the white pine weevil in spruce.Genome biology and evolution · 2011Article
- Non-redundant functions of sHSP-CIs in acquired thermotolerance and their role in early seed development in Arabidopsis.Plant molecular biology · 2008Article
- Molecular chaperone activity of tomato (Lycopersicon esculentum) endoplasmic reticulum-located small heat shock protein.Journal of plant research · 2008Article
- The expanding family of Arabidopsis thaliana small heat stress proteins and a new family of proteins containing alpha-crystallin domains (Acd proteins).Cell stress & chaperones · 2001Article
- Accumulation of small heat-shock protein homologs in the endoplasmic reticulum of cortical parenchyma cells in mulberry in association with seasonal cold acclimation.Plant physiology · 1999Article
- The endoplasmic reticulum of plant cells and its role in protein maturation and biogenesis of oil bodies.Plant molecular biology · 1998Review
- Molecular cloning of a novel heat induced/chilling tolerance related cDNA in tomato fruit by use of mRNA differential display.Plant molecular biology · 1998Article
- Cloning and molecular characterization of a strawberry fruit ripening-related cDNA corresponding a mRNA for a low-molecular-weight heat-shock protein.Plant molecular biology · 1998Article
- Stable transformation of an Arabidopsis cell suspension culture with firefly luciferase providing a cellular system for analysis of chaperone activity in vivo.The Plant cell · 1997Article
- Purification and in vitro chaperone activity of a class I small heat-shock protein abundant in recalcitrant chestnut seeds.Plant physiology · 1997Article
- Expression and native structure of cytosolic class II small heat-shock proteins.Plant physiology · 1997Article
- Tissue-Type-Specific Heat-Shock Response and Immunolocalization of Class I Low-Molecular-Weight Heat-Shock Proteins in Soybean.Plant physiology · 1997Article
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5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Three related gene families of low-molecular-weight (LMW) heat shock proteins (HSPs) have been characterized in plants. We describe a fourth LMW HSP family, represented by PsHSP22.7 from Pisum sativum and GmHSP22.0 from Glycine max, and demonstrate that this family of proteins is endomembrane localized. PsHSP22.7 and GmHSP22.0 are 76.7% identical at the amino acid level. Both proteins have amino-terminal signal peptides and carboxyl-terminal sequences characteristic of endoplasmic reticulum (ER) retention signals. The two proteins closely resemble class I cytoplasmic LMW HSPs, suggesting that they evolved from the cytoplasmic proteins through the addition of the signal peptide and ER retention motif. The endomembrane localization of these proteins was confirmed by cell fractionation. The polypeptide product of PsHSP22.7 mRNA was processed to a smaller-M(r) form by canine pancreatic microsomes; in vivo, GmHSP22.0 polysomal mRNA was found to be predominantly membrane bound. In vitro-processed PsHSP22.7 corresponded in mass and pI to one of two proteins detected in ER fractions from heat-stressed plants by using anti-PsHSP22.7 antibodies. Like other LMW HSPs, PsHSP22.7 was observed in higher-molecular-weight structures with apparent masses of between 80 and 240 kDa. The results reported here indicate that members of this new class of LMW HSPs are most likely resident ER proteins and may be similar in function to related LMW HSPs in the cytoplasm. Along with the HSP90 and HSP70 classes of HSPs, this is the third category of HSPs localized to the ER.
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