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Morozov SY, Solovyev AG. Emergence of Intronless Evolutionary Forms of Stress Response Genes: Possible Relation to Terrestrial Adaptation of Green Plants. FRONTIERS IN PLANT SCIENCE 2019; 10:83. [PMID: 30792726 PMCID: PMC6374339 DOI: 10.3389/fpls.2019.00083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 01/21/2019] [Indexed: 05/18/2023]
Affiliation(s)
- Sergey Y. Morozov
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia
- Department of Virology, Biological Faculty, Moscow State University, Moscow, Russia
- *Correspondence: Sergey Y. Morozov
| | - Andrey G. Solovyev
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia
- Department of Virology, Biological Faculty, Moscow State University, Moscow, Russia
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Moscow, Russia
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Atabekova AK, Lazareva EA, Strelkova OS, Solovyev AG, Morozov SY. Mechanical stress-induced subcellular re-localization of N-terminally truncated tobacco Nt-4/1 protein. Biochimie 2018; 144:98-107. [PMID: 29097279 DOI: 10.1016/j.biochi.2017.10.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 10/25/2017] [Indexed: 01/22/2023]
Abstract
The Nicotiana tabacum 4/1 protein (Nt-4/1) of unknown function expressed in plant vasculature has been shown to localize to cytoplasmic bodies associated with endoplasmic reticulum. Here, we analyzed molecular interactions of an Nt-4/1 mutant with a deletion of 90 N-terminal amino acid residues (Nt-4/1d90) having a diffuse GFP-like localization. Upon transient co-expression with VAP27, a membrane protein known to localize to the ER, ER-plasma membrane contact sites and plasmodesmata, Nt-4/1d90 was concentrated around the cortical ER tubules, forming a network matching the shape of the cortical ER. Additionally, in response to mechanical stress, Nt-4/1d90 was re-localized to small spherical bodies, whereas the subcellular localization of VAP27 remained essentially unaffected. The Nt-4/1d90-containing bodies associated with microtubules, which underwent noticeable bundling under the conditions of mechanical stress. The Nt-4/1d90 re-localization to spherical bodies could also be induced by incubation at an elevated temperature, although under heat shock conditions the re-localization was less efficient and incomplete. An Nt-4/1d90 mutant, which had phosphorylation-mimicking mutations in a predicted cluster of four potentially phosphorylated residues, was found to both inefficiently re-localize to spherical bodies and tend to revert back to the initial diffuse localization. The presented data show that Nt-4/1 has a potential for response to stresses that is manifested by its deletion mutant Nt-4/1d90, and this response can be mediated by protein dephosphorylation.
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Affiliation(s)
- Anastasia K Atabekova
- Department of Virology, Biological Faculty, Moscow State University, Moscow 119234, Russia
| | - Ekaterina A Lazareva
- Department of Virology, Biological Faculty, Moscow State University, Moscow 119234, Russia
| | - Olga S Strelkova
- Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russia
| | - Andrey G Solovyev
- Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russia; Sechenov First Moscow State Medical University, Institute of Molecular Medicine, Moscow 119991, Russia
| | - Sergey Y Morozov
- Department of Virology, Biological Faculty, Moscow State University, Moscow 119234, Russia; Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russia.
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Pankratenko AV, Atabekova AK, Lazareva EA, Baksheeva VE, Zhironkina OA, Zernii EY, Owens RA, Solovyev AG, Morozov SY. Plant-specific 4/1 polypeptide interacts with an endoplasmic reticulum protein related to human BAP31. PLANTA 2017; 245:193-205. [PMID: 27714454 DOI: 10.1007/s00425-016-2601-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 09/28/2016] [Indexed: 06/06/2023]
Abstract
MAIN CONCLUSION The plant-specific 4/1 protein interacts, both in yeast two-hybrid system and in vitro, and co-localizes in plant cells with plant BAP-like protein, the orthologue of human protein BAP31. In yeast two-hybrid system, we identified a number of Nicotiana benthamiana protein interactors of Nt-4/1, the protein known to affect systemic transport of potato spindle tuber viroid. For one of these interactors, an orthologue of human B-cell receptor-associated protein 31 (BAP31) termed plant BAP-like protein (PBL), the ability to interact with Nt-4/1 was studied in greater detail. Analyses of purified proteins expressed in bacterial cells carried out in vitro with the surface plasmon resonance (SPR) spectroscopy revealed that the N. tabacum PBL (NtPBL) was able to interact with Nt-4/1 with high-affinity, and that their complex can form at physiologically relevant concentrations of both proteins. Subcellular localization studies of 4/1-GFP and NtPBL-mRFP transiently co-expressed in plant cells revealed the co-localization of the two fusion proteins in endoplasmic reticulum-associated bodies, suggesting their interaction in vivo. The N-terminal region of the Nt-4/1 protein was found to be required for the specific subcellular targeting of the protein, presumably due to a predicted amphipathic helix mediating association of the Nt-4/1 protein with cell membranes. Additionally, this region was found to contain a trans-activator domain responsible for the Nt-4/1 ability to activate transcription of a reporter gene in yeast.
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Affiliation(s)
- Anna V Pankratenko
- Department of Virology, Biological Faculty, Moscow State University, Moscow, 119992, Russia
| | - Anastasia K Atabekova
- Department of Virology, Biological Faculty, Moscow State University, Moscow, 119992, Russia
| | - Ekaterina A Lazareva
- Department of Virology, Biological Faculty, Moscow State University, Moscow, 119992, Russia
| | - Viktoriia E Baksheeva
- Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, 119992, Russia
| | - Oxana A Zhironkina
- Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, 119992, Russia
| | - Evgeni Yu Zernii
- Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, 119992, Russia
| | - Robert A Owens
- Molecular Plant Pathology Laboratory, USDA-ARS, Beltsville, MD, 20705, USA
| | - Andrey G Solovyev
- Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, 119992, Russia
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Moscow, 119991, Russia
| | - Sergey Y Morozov
- Department of Virology, Biological Faculty, Moscow State University, Moscow, 119992, Russia.
- Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, 119992, Russia.
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Morozov SY, Solovyev AG, Troitsky AV. Phylogeny of the plant 4/1 proteins. Data Brief 2015; 6:8-11. [PMID: 26759821 PMCID: PMC4683343 DOI: 10.1016/j.dib.2015.11.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 11/16/2015] [Indexed: 12/22/2022] Open
Abstract
The Nt-4/1 protein of unknown function has been shown to be alpha-helical and predominantly expressed in conductive tissues of tobacco plants. So far, obvious Nt-4/1 orthologs were found only in flowering plants. We report the analysis of 4/1 genes and the encoded proteins of lower land plants (Morozov et al., 2015) [1]. In this data article, we present two phylogenetic trees of angiosperm 4/1 proteins together with orthologs from liverworts, lycophytes, ferns and gymnosperms.
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Affiliation(s)
- Sergey Y Morozov
- A. N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Andrey G Solovyev
- A. N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Alexey V Troitsky
- A. N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
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