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Abstract

This mini-review briefly presents the main types of plant aquaporins, highlighting their importance for different plant species and for plant cellular functions. Aquaporins (AQPs), families of water channel proteins (WCPs) are transmembrane proteins that are present in prokaryotes, animals, plants, and humans. The plant aquaporins are part of the Major Intrinsic Proteins (MIPs) family which resides in the following plant organs: roots, stems, leaves, flowers, fruits, and seeds. According to the sub-cellular localization, to their sequence homologies and to their phylogenetic distribution, plant aquaporins have been divided in five subgroups: (a) plasma membrane intrinsic proteins (PIPs); (b) tonoplast intrinsic proteins (TIPs); (c) Nodulin26-like intrinsic membrane proteins (NIPs); (d) small basic intrinsic proteins (SIPs) and (e) uncharacterized intrinsic proteins (XIPs). Different subclasses of the plant aquaporins allow several types of transport using: water, glycerol, urea, hydrogen peroxide, organic acids, ethanol, methanol, arsenite, lactic acid, and gaseous compounds. Plant aquaporins have a significant role in cell response to cold stress, photosynthesis, plant growth, cell elongation, reproduction, and seed germination.

, Mathur J, et al. SWELL1, a plasma membrane protein, is an essential component of volume-regulated anion channel. Cell. 2014;157:447–458. [31] Rice-Evans CA, Miller NJ, Bolwell PG, Bramley PM, Pridham JB. The relative antioxidant activities of plant-derived polyphenolic flavonoids. Free RadicRes. 1995;22:375–383. [32] Rice-Evans CA, Miller NJ, Paganga G. Structure-antioxidant activity relationships of flavonoids and phenolic acids. Free Radic Biol Med. 1996;20:933–956. [33] Sabirov RZ, Kurbannazarova RS, Melanova NR, Okada Y. Volume-sensitive anion channels mediate

Cell Biol 2010; 11: 29. [13] Daubeuf S, Aucher A, Bordier Ch, Salles A, Serre L, Gaibelet G, Faye J-Ch, Favre G, Joly E, Hudrisier D. Preferential transfer of certain plasma membrane proteins onto T and B cells by trogocytosis. PLoS ONE 2010; 5: e8716. [14] Domhan S, Ma L, Tai A, Anaya Z, Beheshti A, Zeier M, Hlatky L, Abdollah I. Intercellular communication by exchange of cytoplasmic material via tunneling nanotube like structures in primary human renal epithelial cells. PLoS ONE 2011; 6: e21283 [15] Dubey GP, Ben-Yehuda S. Intercellular nanotubes mediate bacterial

(1981): The vegetation of Australia. Cambridge University Press, Cambridge. BOYES, D. C., J. NAM and J. L. DANGL (1998): The Arabidopsis thaliana RPM1 disease resistance gene product is a peripheral plasma membrane protein that is degraded coincident with the hypersensitive response. Proc Natl Acad Sci USA 95: 15849-15854. BRODL, M. R. and T. H. D. HO (1991): Heat shock causesselective destabilization of secretory protein mRNAs in barley aleurone cells. Plant Physiol 96: 1048-1052. BUTT, A., C. MOUSLEY, K. MORRIS, J. BEYNON, C. CAN, E. HOLUB, J. T. GREENBERG and V

enhanced proteomic analysis of plant tissues. Nat Protoc 2006;1:769-74. PMID: 17406306 76. Nouri MZ, Komatsu S. Comparative analysis of soybean plasma membrane proteins under osmotic stress using gelbased and LC MS/MS-based proteomics approaches.Proteomics 2010;10:1930-45. doi: 10.1002/pmic.200900632 77. Pavoković D, Križnik B, Krsnik-Rasol M. Evaluation of protein extraction methods for proteomic analysis of nonmodel recalcitrant plant tissues. Croat Chem Acta 2012;85:177-83. doi: 10.5562/cca1804 78. Komatsu S. Ahsan N. Soybean proteomics and its application to

pathway is regulated through several mechanisms. Plasma membrane proteins like G protein coupled receptor ligands (GPCRs) have been identified as regulators of Hippo signaling ( 17 ). Upstream intracellular adaptor proteins such as NF2, RASSFs and KIBRA interact with MST1/2 and LATS1/2 alter their function and subsequently YAP and TAZ localization ( 18 , 19 , 20 ). Cytoskeletal remodeling is caused by mechanical changes which facilitate YAP and TAZ to emerge as important factors linking extracellular matrix signals to transcriptional outputs that regulate cell

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protects cells against oxidative stress generated by ionizing radiation and/or anticancer drugs. The fullerenol molecule can be also excited with visible or ultraviolet light creating a reactive molecule that easily interacts with oxygen or biomolecules and has applications in photosensitization (Grebowski, Kazmierska & Krokosz, 2013). We demonstrated that highly hydroxylated fullerenol C60(OH)x, x>30 (up to 150 mg/L) is non-toxic to human erythrocytes, however, can adsorb to plasma membrane proteins, especially to ion-dependent ATPases decreasing their

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Wrocławiu 2 Wydział Farmacji z Oddziałem Analityki Medycznej, Uniwersytet Medyczny im. Piastów Śląskich we Wrocławiu Multidrug resistance (MDR) of cancer cells which is one of the form of resistance to chemotherapy, has been extensively studied for more than 30 years. For MDR phenotype are responsible plasma membrane proteins that belong to a large superfamily of the pro- teins called the ATP-binding cassette (ABC) trans- porters, particularly:P-glycoprotein (P-gp),multidrug- resistance associated protein 1 (MRP1) and breast cancer resistance protein (BCRP