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Wadeesirisak K, Castano S, Vaysse L, Bonfils F, Peruch F, Rattanaporn K, Liengprayoon S, Lecomte S, Bottier C. Interactions of REF1 and SRPP1 rubber particle proteins from Hevea brasiliensis with synthetic phospholipids: Effect of charge and size of lipid headgroup. Biochem Biophys Res Commun 2023; 679:205-214. [PMID: 37708579 DOI: 10.1016/j.bbrc.2023.08.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/18/2023] [Accepted: 08/29/2023] [Indexed: 09/16/2023]
Abstract
According to the fatty acid and headgroup compositions of the phospholipids (PL) from Hevea brasiliensis latex, three synthetic PL were selected (i.e. POPA: 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphate POPC: 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine and POPG: 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphoglycerol) to investigate the effect of PL headgroup on the interactions with two major proteins of Hevea latex, i.e. Rubber Elongation Factor (REF1) and Small Rubber Particle Protein (SRPP1). Protein/lipid interactions were screened using two models (lipid vesicles in solution or lipid monolayers at air/liquid interface). Calcein leakage, surface pressure, ellipsometry, microscopy and spectroscopy revealed that both REF1 and SRPP1 displayed stronger interactions with anionic POPA and POPG, as compared to zwitterionic POPC. A particular behavior of REF1 was observed when interacting with POPA monolayers (i.e. aggregation + modification of secondary structure from α-helices to β-sheets, characteristic of its amyloid aggregated form), which might be involved in the irreversible coagulation mechanism of Hevea rubber particles.
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Affiliation(s)
- Kanthida Wadeesirisak
- Institute of Food Research and Product Development, Kasetsart University, 10900, Bangkok, Thailand
| | - Sabine Castano
- Univ. Bordeaux, CNRS, Bordeaux INP, CBMN, UMR5248, F-33600, Pessac, France
| | - Laurent Vaysse
- CIRAD, UPR BioWooEB, F-34398, Montpellier, France; BioWooEB, Univ Montpellier, CIRAD, Montpellier, France
| | - Frédéric Bonfils
- CIRAD, UPR BioWooEB, F-34398, Montpellier, France; BioWooEB, Univ Montpellier, CIRAD, Montpellier, France
| | - Frédéric Peruch
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
| | - Kittipong Rattanaporn
- Department of Biotechnology, Faculty of Agro-Industry, Kasetsart University, 10900, Bangkok, Thailand
| | - Siriluck Liengprayoon
- Kasetsart Agricultural and Agro-Industrial Product Improvement Institute, Kasetsart University, 10900, Bangkok, Thailand
| | - Sophie Lecomte
- Univ. Bordeaux, CNRS, Bordeaux INP, CBMN, UMR5248, F-33600, Pessac, France.
| | - Céline Bottier
- CIRAD, UPR BioWooEB, F-34398, Montpellier, France; BioWooEB, Univ Montpellier, CIRAD, Montpellier, France.
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Wang CC, Yin HB, Bai SJ, Zhang R, Li CH, Tang MZ, Xu YX. Probe the terminal interactions and their synergistic effects on polyisoprene properties by mimicking the structure of natural rubber. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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3
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Distribution of the non-isoprene components in the four Hevea brasiliensis latex centrifugation fractions. J RUBBER RES 2021. [DOI: 10.1007/s42464-021-00133-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Lipid Composition of Latex and Rubber Particles in Hevea brasiliensis and Taraxacum kok-saghyz. Molecules 2020; 25:molecules25215110. [PMID: 33153210 PMCID: PMC7662343 DOI: 10.3390/molecules25215110] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 10/29/2020] [Accepted: 10/30/2020] [Indexed: 11/17/2022] Open
Abstract
Natural rubber is usually synthesized in the rubber particles present in the latex of rubber-producing plants such as the Pará rubber tree (Hevea brasiliensis) and rubber dandelion (Taraxacum kok-saghyz). Since the detailed lipid compositions of fresh latex and rubber particles of the plants are poorly known, the present study reports detailed compound lipid composition, focusing on phospholipids and galactolipids in the latex and rubber particles of the plants. In the fresh latex and rubber particles of both plants, phospholipids were much more dominant (85-99%) compared to galactolipids. Among the nine classes of phospholipids, phosphatidylcholines (PCs) were most abundant, at ~80%, in both plants. Among PCs, PC (36:4) and PC (34:2) were most abundant in the rubber tree and rubber dandelion, respectively. Two classes of galactolipids, monogalactosyl diacylglycerol and digalactosyl diacylglycerol, were detected as 12% and 1%, respectively, of total compound lipids in rubber tree, whereas their percentages in the rubber dandelion were negligible (< 1%). Overall, the compound lipid composition differed only slightly between the fresh latex and the rubber particles of both rubber plants. These results provide fundamental data on the lipid composition of rubber particles in two rubber-producing plants, which can serve as a basis for artificial rubber particle production in the future.
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Impact of non-rubber components on the branching structure and the accelerated storage hardening in Hevea rubber. J RUBBER RES 2020. [DOI: 10.1007/s42464-020-00063-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Barzegar ZA, Ganjali ST, Malekzadeh M, Motiee F. EVALUATION OF RHEOLOGICAL PROPERTIES OF RUBBER COMPOUNDS BASED ON NR BY DETERMINATION OF NR LIPID CONTENTS OBTAINED FROM ATTENUATED TOTAL REFLECTION FOURIER TRANSFORM INFRARED SPECTRA. RUBBER CHEMISTRY AND TECHNOLOGY 2020. [DOI: 10.5254/rct.20.80429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
ABSTRACT
This work was done in three stages. In step 1, the lipid content of different natural rubbers (NRs) was evaluated by two methods, extraction and attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy, and the obtained results were successfully correlated. In the second step, the correlations between scorch time (Ts2) and optimum cure time (T′c90) of rubber compounds based on natural rubber (NR) and the lipid contents of different types of NR (obtained by two methods) were investigated. The suitable linear behaviors were observed. In the third step, because ATR-FTIR spectroscopy is a fast, simple, and nondestructive technique for characterizing NR, the correlations that were obtained by this method were considered to predict the rheological properties of two case studies. The amounts of Ts2 and T′c90 were estimated by errors of about 20% and 15%, respectively. This new approach is a nondestructive and rapid method for predicting the cure characteristics of the defined NR-based rubber compounds by analyzing small amounts of the species.
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Affiliation(s)
- Zohreh Asghari Barzegar
- Chemistry Department, Tehran North Branch, Islamic Azad University, Shahid Abbaspour Boulevard, Hakimiyeh, Babaei Highway, Tehran, Iran
| | - Saeed Taghvaei Ganjali
- Chemistry Department, Tehran North Branch, Islamic Azad University, Shahid Abbaspour Boulevard, Hakimiyeh, Babaei Highway, Tehran, Iran
| | - Mercedeh Malekzadeh
- Chemistry Department, Tehran North Branch, Islamic Azad University, Shahid Abbaspour Boulevard, Hakimiyeh, Babaei Highway, Tehran, Iran
| | - Fereshteh Motiee
- Chemistry Department, Tehran North Branch, Islamic Azad University, Shahid Abbaspour Boulevard, Hakimiyeh, Babaei Highway, Tehran, Iran
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7
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Effects of rubber elongation factor and small rubber particle protein from rubber-producing plants on lipid metabolism in Saccharomyces cerevisiae. J Biosci Bioeng 2019; 128:585-592. [DOI: 10.1016/j.jbiosc.2019.04.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 02/15/2019] [Accepted: 04/20/2019] [Indexed: 11/23/2022]
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Cherian S, Ryu SB, Cornish K. Natural rubber biosynthesis in plants, the rubber transferase complex, and metabolic engineering progress and prospects. PLANT BIOTECHNOLOGY JOURNAL 2019; 17:2041-2061. [PMID: 31150158 PMCID: PMC6790360 DOI: 10.1111/pbi.13181] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 05/24/2019] [Accepted: 05/29/2019] [Indexed: 05/26/2023]
Abstract
Natural rubber (NR) is a nonfungible and valuable biopolymer, used to manufacture ~50 000 rubber products, including tires and medical gloves. Current production of NR is derived entirely from the para rubber tree (Hevea brasiliensis). The increasing demand for NR, coupled with limitations and vulnerability of H. brasiliensis production systems, has induced increasing interest among scientists and companies in potential alternative NR crops. Genetic/metabolic pathway engineering approaches, to generate NR-enriched genotypes of alternative NR plants, are of great importance. However, although our knowledge of rubber biochemistry has significantly advanced, our current understanding of NR biosynthesis, the biosynthetic machinery and the molecular mechanisms involved remains incomplete. Two spatially separated metabolic pathways provide precursors for NR biosynthesis in plants and their genes and enzymes/complexes are quite well understood. In contrast, understanding of the proteins and genes involved in the final step(s)-the synthesis of the high molecular weight rubber polymer itself-is only now beginning to emerge. In this review, we provide a critical evaluation of recent research developments in NR biosynthesis, in vitro reconstitution, and the genetic and metabolic pathway engineering advances intended to improve NR content in plants, including H. brasiliensis, two other prospective alternative rubber crops, namely the rubber dandelion and guayule, and model species, such as lettuce. We describe a new model of the rubber transferase complex, which integrates these developments. In addition, we highlight the current challenges in NR biosynthesis research and future perspectives on metabolic pathway engineering of NR to speed alternative rubber crop commercial development.
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Affiliation(s)
- Sam Cherian
- Plant Systems Engineering Research CentreKorea Research Institute of Bioscience and Biotechnology (KRIBB)Yuseong‐guDaejeonKorea
- Research & Development CenterDRB Holding Co. LTDBusanKorea
| | - Stephen Beungtae Ryu
- Plant Systems Engineering Research CentreKorea Research Institute of Bioscience and Biotechnology (KRIBB)Yuseong‐guDaejeonKorea
- Department of Biosystems and BioengineeringKRIBB School of BiotechnologyKorea University of Science and Technology (UST)DaejeonKorea
| | - Katrina Cornish
- Department of Horticulture and Crop ScienceThe Ohio State UniversityWoosterOHUSA
- Department of Food, Agricultural and Biological EngineeringThe Ohio State UniversityWoosterOHUSA
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9
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Proteomic Landscape Has Revealed Small Rubber Particles Are Crucial Rubber Biosynthetic Machines for Ethylene-Stimulation in Natural Rubber Production. Int J Mol Sci 2019; 20:ijms20205082. [PMID: 31614967 PMCID: PMC6829444 DOI: 10.3390/ijms20205082] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 10/10/2019] [Accepted: 10/11/2019] [Indexed: 11/16/2022] Open
Abstract
Rubber particles are a specific organelle for natural rubber biosynthesis (NRB) and storage. Ethylene can significantly improve rubber latex production by increasing the generation of small rubber particles (SRPs), regulating protein accumulation, and activating many enzyme activities. We conducted a quantitative proteomics study of different SRPs upon ethylene stimulation by differential in-gel electrophoresis (DIGE) and using isobaric tags for relative and absolute quantification (iTRAQ) methods. In DIGE, 79 differentially accumulated proteins (DAPs) were determined as ethylene responsive proteins. Our results show that the abundance of many NRB-related proteins has been sharply induced upon ethylene stimulation. Among them, 23 proteins were identified as rubber elongation factor (REF) and small rubber particle protein (SRPP) family members, including 16 REF and 7 SRPP isoforms. Then, 138 unique phosphorylated peptides, containing 129 phosphorylated amino acids from the 64 REF/SRPP family members, were identified, and most serine and threonine were phosphorylated. Furthermore, we identified 226 DAPs from more than 2000 SRP proteins by iTRAQ. Integrative analysis revealed that almost all NRB-related proteins can be detected in SRPs, and many proteins are positively responsive to ethylene stimulation. These results indicate that ethylene may stimulate latex production by regulating the accumulation of some key proteins. The phosphorylation modification of REF and SRPP isoforms might be crucial for NRB, and SRP may act as a complex natural rubber biosynthetic machine.
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Liu H, Wei Y, Deng Z, Yang H, Dai L, Li D. Involvement of HbMC1-mediated cell death in tapping panel dryness of rubber tree (Hevea brasiliensis). TREE PHYSIOLOGY 2019; 39:391-403. [PMID: 30496555 DOI: 10.1093/treephys/tpy125] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 10/16/2018] [Accepted: 10/30/2018] [Indexed: 06/09/2023]
Abstract
Tapping panel dryness (TPD) causes a significant reduction in the latex yield of rubber tree (Hevea brasiliensis Muell. Arg.). It is reported that TPD is a typical programmed cell death (PCD) process. Although PCD plays a vital role in TPD occurrence, there is a lack of detailed and systematic study. Metacaspases are key regulators of diverse PCD in plants. Based on our previous result that HbMC1 was associated with TPD, we further elucidate the roles of HbMC1 on rubber tree TPD in this study. HbMC1 was up-regulated by TPD-inducing factors including wounding, ethephon and H2O2. Moreover, the expression level of HbMC1 was increased along with TPD severity in rubber tree, suggesting a positive correlation between HbMC1 expression and TPD severity. To investigate its biological function, HbMC1 was overexpressed in yeast (Saccharomyces cerevisiae) and tobacco (Nicotiana benthamiana). Transgenic yeast and tobacco overexpressing HbMC1 showed growth retardation compared with controls under H2O2-induced oxidative stress. In addition, overexpression of HbMC1 in yeast and tobacco reduced cell survival after high-concentration H2O2 treatment and resulted in enhanced H2O2-induced leaf cell death, respectively. A total of 11 proteins, rbcL, TM9SF2-like, COX3, ATP9, DRP, HbREF/Hevb1, MSSP2-like, SRC2, GATL8, CIPK14-like and STK, were identified and confirmed to interact with HbMC1 by yeast two-hybrid screening and co-transformation in yeast. The 11 proteins mentioned above are associated with many biological processes, including rubber biosynthesis, stress response, autophagy, carbohydrate metabolism, signal transduction, etc. Taken together, our results suggest that HbMC1-mediated PCD plays an important role in rubber tree TPD, and the identified HbMC1-interacting proteins provide valuable information for further understanding the molecular mechanism of HbMC1-mediated TPD in rubber tree.
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Affiliation(s)
- Hui Liu
- Hainan Provincial Key Laboratory of Tropical Crops Cultivation and Physiology, Key Laboratory of Biology and Genetic Resources of Rubber Tree, Ministry of Agriculture and Rural Affairs, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, China
| | - Yongxuan Wei
- Hainan Provincial Key Laboratory of Tropical Crops Cultivation and Physiology, Key Laboratory of Biology and Genetic Resources of Rubber Tree, Ministry of Agriculture and Rural Affairs, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, China
- Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, China
| | - Zhi Deng
- Hainan Provincial Key Laboratory of Tropical Crops Cultivation and Physiology, Key Laboratory of Biology and Genetic Resources of Rubber Tree, Ministry of Agriculture and Rural Affairs, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, China
| | - Hong Yang
- Hainan Provincial Key Laboratory of Tropical Crops Cultivation and Physiology, Key Laboratory of Biology and Genetic Resources of Rubber Tree, Ministry of Agriculture and Rural Affairs, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, China
| | - Longjun Dai
- Hainan Provincial Key Laboratory of Tropical Crops Cultivation and Physiology, Key Laboratory of Biology and Genetic Resources of Rubber Tree, Ministry of Agriculture and Rural Affairs, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, China
| | - Dejun Li
- Hainan Provincial Key Laboratory of Tropical Crops Cultivation and Physiology, Key Laboratory of Biology and Genetic Resources of Rubber Tree, Ministry of Agriculture and Rural Affairs, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, China
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11
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Jendrossek D, Birke J. Rubber oxygenases. Appl Microbiol Biotechnol 2019; 103:125-142. [PMID: 30377752 PMCID: PMC6311187 DOI: 10.1007/s00253-018-9453-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 10/10/2018] [Accepted: 10/10/2018] [Indexed: 11/11/2022]
Abstract
Natural rubber (NR), poly(cis-1,4-isoprene), is used in an industrial scale for more than 100 years. Most of the NR-derived materials are released to the environment as waste or by abrasion of small particles from our tires. Furthermore, compounds with isoprene units in their molecular structures are part of many biomolecules such as terpenoids and carotenoids. Therefore, it is not surprising that NR-degrading bacteria are widespread in nature. NR has one carbon-carbon double bond per isoprene unit and this functional group is the primary target of NR-cleaving enzymes, so-called rubber oxygenases. Rubber oxygenases are secreted by rubber-degrading bacteria to initiate the break-down of the polymer and to use the generated cleavage products as a carbon source. Three main types of rubber oxygenases have been described so far. One is rubber oxygenase RoxA that was first isolated from Xanthomonas sp. 35Y but was later also identified in other Gram-negative rubber-degrading species. The second type of rubber oxygenase is the latex clearing protein (Lcp) that has been regularly found in Gram-positive rubber degraders. Recently, a third type of rubber oxygenase (RoxB) with distant relationship to RoxAs was identified in Gram-negative bacteria. All rubber oxygenases described so far are haem-containing enzymes and oxidatively cleave polyisoprene to low molecular weight oligoisoprenoids with terminal CHO and CO-CH3 functions between a variable number of intact isoprene units, depending on the type of rubber oxygenase. This contribution summarises the properties of RoxAs, RoxBs and Lcps.
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Affiliation(s)
- Dieter Jendrossek
- Institute of Microbiology, University of Stuttgart, Allmandring 31, 70550, Stuttgart, Germany.
| | - Jakob Birke
- Institute of Microbiology, University of Stuttgart, Allmandring 31, 70550, Stuttgart, Germany
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Cornish K, Scott DJ, Xie W, Mau CJD, Zheng YF, Liu XH, Prestwich GD. Unusual subunits are directly involved in binding substrates for natural rubber biosynthesis in multiple plant species. PHYTOCHEMISTRY 2018; 156:55-72. [PMID: 30195165 DOI: 10.1016/j.phytochem.2018.08.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 07/31/2018] [Accepted: 08/17/2018] [Indexed: 05/11/2023]
Abstract
Rubber particles from rubber-producing plant species have many different species-specific proteins bound to their external monolayer biomembranes. To date, identification of those proteins directly involved in enzymatic catalysis of rubber polymerization has not been fully accomplished using solubilization, purification or reconstitution approaches. In an alternative approach, we use several tritiated photoaffinity-labeled benzophenone analogs of the allylic pyrophosphate substrates, required by rubber transferase (RT-ase) to initiate the synthesis of new rubber molecules, to identify the proteins involved in catalysis. Enzymatically-active rubber particles were purified from three phylogenetically-distant rubber producing species, Parthenium argentatum Gray, Hevea brasiliensis Muell. Arg, and Ficus elastica Roxb., each representing a different Superorder of the Dicotyledonae. Geranyl pyrophosphate with the benzophenone in the para position (Bz-GPP(p)) was the most active initiator of rubber biosynthesis in all three species. When rubber particles were exposed to ultra-violet radiation, 95% of RT-ase activity was eliminated in the presence of 50 μΜ Bz-GPP(p), compared to only 50% of activity in the absence of this analog. 3H-Bz-GPP(p) then was used to label and identify the proteins involved in substrate binding and these proteins were characterized electrophoretically. In all three species, three distinct proteins were labeled, one very large protein and two very small proteins, as follows: P. argentatum 287,000, 3,990, and 1,790 Da; H. brasiliensis 241,000, 3,650 and 1,600 Da; F. elastica 360,000, 3,900 and 1,800 Da. The isoelectric points of the P. argentatum proteins were 7.6 for the 287,000 Da, 10.4 for the 3,990 Da and 3.5 for the 1,790 Da proteins, and of the F. elastica proteins were 7.7 for the 360,000 Da, 6,0 for the 3,900 Da, and 11.0 for the 1,800 Da proteins. H. brasiliensis protein pI values were not determined. Additional analysis indicated that the three proteins are components of a membrane-bound complex and that the ratio of each small protein to the large one is 3:1, and the large protein exists as a dimer. Also, the large proteins are membrane bound whereas both small proteins are strongly associated with the large proteins, rather than to the rubber particle proteolipid membrane.
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Affiliation(s)
- Katrina Cornish
- USDA-ARS Western Regional Research Center, 800 Buchanan Street, Albany, CA 94710, USA; Center of Applied Plant Sciences, Institute of Materials Research, Institute of Humanitarian Engineering, Department of Chemistry and Biochemistry, USA.
| | - Deborah J Scott
- USDA-ARS Western Regional Research Center, 800 Buchanan Street, Albany, CA 94710, USA
| | - Wenshuang Xie
- USDA-ARS Western Regional Research Center, 800 Buchanan Street, Albany, CA 94710, USA
| | - Christopher J D Mau
- USDA-ARS Western Regional Research Center, 800 Buchanan Street, Albany, CA 94710, USA
| | - Yi Feng Zheng
- Department of Medicinal Chemistry, The University of Utah, South 2000 East, Rm. 307, Salt Lake City, UT 84112, USA
| | - Xiao-Hui Liu
- Department of Medicinal Chemistry, The University of Utah, South 2000 East, Rm. 307, Salt Lake City, UT 84112, USA
| | - Glenn D Prestwich
- Department of Medicinal Chemistry, The University of Utah, South 2000 East, Rm. 307, Salt Lake City, UT 84112, USA
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Hathwaik U, Lin JT, McMahan C. Molecular species of triacylglycerols in the rubber particles of Parthenium argentatum and Hevea brasiliensis. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2018. [DOI: 10.1016/j.bcab.2018.07.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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14
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Wang D, Sun Y, Chang L, Tong Z, Xie Q, Jin X, Zhu L, He P, Li H, Wang X. Subcellular proteome profiles of different latex fractions revealed washed solutions from rubber particles contain crucial enzymes for natural rubber biosynthesis. J Proteomics 2018; 182:53-64. [PMID: 29729991 DOI: 10.1016/j.jprot.2018.05.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 04/30/2018] [Accepted: 05/02/2018] [Indexed: 01/20/2023]
Abstract
Rubber particle (RP) is a specific organelle for natural rubber biosynthesis (NRB) and storage in rubber tree Hevea brasiliensis. NRB is processed by RP membrane-localized proteins, which were traditionally purified by repeated washing. However, we noticed many proteins in the discarded washing solutions (WS) from RP. Here, we compared the proteome profiles of WS, C-serum (CS) and RP by 2-DE, and identified 233 abundant proteins from WS by mass spectrometry. Many spots on 2-DE gels were identified as different protein species. We further performed shotgun analysis of CS, WS and RP and identified 1837, 1799 and 1020 unique proteins, respectively. Together with 2-DE, we finally identified 1825 proteins from WS, 246 were WS-specific. These WS-specific proteins were annotated in Gene Ontology, indicating most abundant pathways are organic substance metabolic process, protein degradation, primary metabolic process, and energy metabolism. Protein-protein interaction analysis revealed these WS-specific proteins are mainly involved in ribosomal metabolism, proteasome system, vacuolar protein sorting and endocytosis. Label free and Western blotting revealed many WS-specific proteins and protein complexes are crucial for NRB initiation. These findings not only deepen our understanding of WS proteome, but also provide new evidences on the roles of RP membrane proteins in NRB. SIGNIFICANCE Natural rubber is stored in rubber particle from the rubber tree. Rubber particles were traditionally purified by repeated washing, but many proteins were identified from the washing solutions (WS). We obtained the first visualization proteome profiles with 1825 proteins from WS, including 246 WS-specific ones. These WS proteins contain almost all enzymes for polyisoprene initiation and may play important roles in rubber biosynthesis.
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Affiliation(s)
- Dan Wang
- Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China; College of Life Sciences, Ministry of Education Key Laboratory for Ecology of Tropical Islands, Hainan Normal University, Haikou, Hainan 571158, China
| | - Yong Sun
- Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China; Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan 571737, China
| | - Lili Chang
- Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China
| | - Zheng Tong
- Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China
| | - Quanliang Xie
- Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China; College of Life Sciences, Key Laboratory of Agrobiotechnology, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Xiang Jin
- Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China; College of Life Sciences, Ministry of Education Key Laboratory for Ecology of Tropical Islands, Hainan Normal University, Haikou, Hainan 571158, China
| | - Liping Zhu
- Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China; College of Life Sciences, Key Laboratory of Agrobiotechnology, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Peng He
- Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan 571737, China
| | - Hongbin Li
- College of Life Sciences, Key Laboratory of Agrobiotechnology, Shihezi University, Shihezi, Xinjiang 832003, China.
| | - Xuchu Wang
- Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China; College of Life Sciences, Ministry of Education Key Laboratory for Ecology of Tropical Islands, Hainan Normal University, Haikou, Hainan 571158, China; College of Life Sciences, Key Laboratory of Agrobiotechnology, Shihezi University, Shihezi, Xinjiang 832003, China.
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Zheng J, Ye X, Han D, Zhao S, Wu X, Wu Y, Dong D, Wang Y, Zhang L. Silica Modified by Alcohol Polyoxyethylene Ether and Silane Coupling Agent Together to Achieve High Performance Rubber Composites Using the Latex Compounding Method. Polymers (Basel) 2017; 10:E1. [PMID: 30966037 PMCID: PMC6415053 DOI: 10.3390/polym10010001] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 12/17/2017] [Accepted: 12/18/2017] [Indexed: 11/23/2022] Open
Abstract
The study of preparing silica/rubber composites used in tires with low rolling resistance in an energy-saving method is fast-growing. In this study, a novel strategy is proposed, in which silica was modified by combing alcohol polyoxyethylene ether (AEO) and 3-mercaptopropyltriethoxysilane (K-MEPTS) for preparing silica/natural rubber (NR) master batches. A thermal gravimetric analyzer and Raman spectroscopy results indicated that both AEO and K-MEPTS could be grafted on to the silica surface, and AEO has a chance to shield the mercaptopropyl group on K-MEPTS. Silica modified by AEO and K-MEPTS together was completely co-coagulated with the rubber in preparing silica/NR composites using the latex compounding method with the help of the interaction between AEO and K-MEPTS. The performance of composites prepared by silica/NR master batches was investigated by a rubber process analyzer (RPA), transmission electron microscopy (TEM) and a tensile tester. These results demonstrate that AEO forms a physical interface between silica and rubber, resulting in good silica dispersion in the matrix. K-MEPTS forms a chemical interface between silica and rubber, enhancing the reinforcing effect of silica and reducing the mutual friction between silica particles. In summary, using a proper combination of AEO and K-MEPTS is a user-friendly approach for preparing silica/NR composites with excellent performance.
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Affiliation(s)
- Junchi Zheng
- Engineering Research Center of Elastomer Materials on Energy Conservation and Resources, Ministry of Education, Beijing 100029, China.
| | - Xin Ye
- Engineering Research Center of Elastomer Materials on Energy Conservation and Resources, Ministry of Education, Beijing 100029, China.
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, P.O. Box 57, Beisanhuan East Road, Beijing 100029, China.
| | - Dongli Han
- Engineering Research Center of Elastomer Materials on Energy Conservation and Resources, Ministry of Education, Beijing 100029, China.
| | - Suhe Zhao
- Engineering Research Center of Elastomer Materials on Energy Conservation and Resources, Ministry of Education, Beijing 100029, China.
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, P.O. Box 57, Beisanhuan East Road, Beijing 100029, China.
| | - Xiaohui Wu
- Engineering Research Center of Elastomer Materials on Energy Conservation and Resources, Ministry of Education, Beijing 100029, China.
| | - Youping Wu
- Engineering Research Center of Elastomer Materials on Energy Conservation and Resources, Ministry of Education, Beijing 100029, China.
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, P.O. Box 57, Beisanhuan East Road, Beijing 100029, China.
| | - Dong Dong
- Red Avenue New Materials Group Co., Ltd., Shanghai 200120, China.
| | - Yiqing Wang
- Engineering Research Center of Elastomer Materials on Energy Conservation and Resources, Ministry of Education, Beijing 100029, China.
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, P.O. Box 57, Beisanhuan East Road, Beijing 100029, China.
| | - Liqun Zhang
- Engineering Research Center of Elastomer Materials on Energy Conservation and Resources, Ministry of Education, Beijing 100029, China.
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, P.O. Box 57, Beisanhuan East Road, Beijing 100029, China.
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16
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Wu J, Qu W, Huang G, Wang S, Huang C, Liu H. Super-Resolution Fluorescence Imaging of Spatial Organization of Proteins and Lipids in Natural Rubber. Biomacromolecules 2017; 18:1705-1712. [PMID: 28463484 DOI: 10.1021/acs.biomac.6b01827] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jinrong Wu
- State
Key Laboratory of Polymer Material Engineering, College of Polymer
Science and Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
| | - Wei Qu
- State
Key Laboratory of Polymer Material Engineering, College of Polymer
Science and Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
| | - Guangsu Huang
- State
Key Laboratory of Polymer Material Engineering, College of Polymer
Science and Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
| | - Siyuan Wang
- Howard
Hughes Medical Institute, Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Cheng Huang
- State
Key Laboratory of Polymer Material Engineering, College of Polymer
Science and Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
| | - Han Liu
- State
Key Laboratory of Polymer Material Engineering, College of Polymer
Science and Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
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17
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Comparative Proteomics of Rubber Latex Revealed Multiple Protein Species of REF/SRPP Family Respond Diversely to Ethylene Stimulation among Different Rubber Tree Clones. Int J Mol Sci 2017; 18:ijms18050958. [PMID: 28468331 PMCID: PMC5454871 DOI: 10.3390/ijms18050958] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 04/03/2017] [Accepted: 04/21/2017] [Indexed: 01/26/2023] Open
Abstract
Rubber elongation factor (REF) and small rubber particle protein (SRPP) are two key factors for natural rubber biosynthesis. To further understand the roles of these proteins in rubber formation, six different genes for latex abundant REF or SRPP proteins, including REF138,175,258 and SRPP117,204,243, were characterized from Hevea brasiliensis Reyan (RY) 7-33-97. Sequence analysis showed that REFs have a variable and long N-terminal, whereas SRPPs have a variable and long C-terminal beyond the REF domain, and REF258 has a β subunit of ATPase in its N-terminal. Through two-dimensional electrophoresis (2-DE), each REF/SRPP protein was separated into multiple protein spots on 2-DE gels, indicating they have multiple protein species. The abundance of REF/SRPP proteins was compared between ethylene and control treatments or among rubber tree clones with different levels of latex productivity by analyzing 2-DE gels. The total abundance of each REF/SRPP protein decreased or changed a little upon ethylene stimulation, whereas the abundance of multiple protein species of the same REF/SRPP changed diversely. Among the three rubber tree clones, the abundance of the protein species also differed significantly. Especially, two protein species of REF175 or REF258 were ethylene-responsive only in the high latex productivity clone RY 8-79 instead of in RY 7-33-97 and PR 107. Some individual protein species were positively related to ethylene stimulation and latex productivity. These results suggested that the specific protein species could be more important than others for rubber production and post-translational modifications might play important roles in rubber biosynthesis.
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18
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Hoarau M, Badieyan S, Marsh ENG. Immobilized enzymes: understanding enzyme – surface interactions at the molecular level. Org Biomol Chem 2017; 15:9539-9551. [DOI: 10.1039/c7ob01880k] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Interactions between immobilized enzymes and supporting surfaces are complex and context-dependent and can significantly alter enzyme structure, stability and activity.
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Affiliation(s)
- Marie Hoarau
- Department of Chemistry
- University of Michigan
- Ann Arbor
- USA
| | | | - E. Neil G. Marsh
- Department of Chemistry
- University of Michigan
- Ann Arbor
- USA
- Department of Biological Chemistry
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