1
|
Patel SN, Sonani RR, Chaubey MG, Gupta GD, Singh NK, Kumar V, Madamwar D. Crystal structure of Synechococcus phycocyanin: implications of light-harvesting and antioxidant properties. 3 Biotech 2023; 13:247. [PMID: 37366498 PMCID: PMC10290628 DOI: 10.1007/s13205-023-03665-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 06/07/2023] [Indexed: 06/28/2023] Open
Abstract
Phycobiliproteins is a family of chromophore-containing proteins having light-harvesting and antioxidant capacity. The phycocyanin (PC) is a brilliant blue coloured phycobiliprotein, found in rod structure of phycobilisome and has been widely studied for their therapeutic and fluorescent properties. In the present study, the hexameric assembly structure of phycocyanin (Syn-PC) from Synechococcus Sp. R42DM is characterized by X-ray crystallography to understand its light-harvesting and antioxidant properties. The crystal structure of Syn-PC is solved with 2.15 Å resolution and crystallographic R-factors, Rwork/Rfree, 0.16/0.21. The hexamer of Syn-PC is formed by heterodimer of two polypeptide chains, namely, α- and β-subunits. The structure is analysed at atomic level to reveal the chromophore microenvironment and possible light energy transfer mechanism in Syn-PC. The chromophore arrangement in hexamer, deviation angle and distance between the chromophore contribute to the energy transfer efficiency of protein. The structural attributes responsible for the antioxidant potential of Syn-PC are recognized and annotated on its 3-dimensional structure. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-023-03665-1.
Collapse
Affiliation(s)
- Stuti N. Patel
- P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology, CHARUSAT Campus, Changa, Anand, Gujarat 388421 India
- Present Address: Małopolska Centre of Biotechnology, Jagiellonian University, Kraków, Poland
| | - Ravi R. Sonani
- Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, VA USA
| | - Mukesh G. Chaubey
- Shri A. N. Patel P. G. Institute of Science and Research, Sardar Patel University, Anand, Gujarat India
| | - Gagan D. Gupta
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085 India
| | - Niraj Kumar Singh
- Gujarat Biotechnology Research Centre (GBRC), Department of Science and Technology, Government of Gujarat, Gandhinagar, Gujarat 382 011 India
| | - Vinay Kumar
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085 India
| | - Datta Madamwar
- P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology, CHARUSAT Campus, Changa, Anand, Gujarat 388421 India
| |
Collapse
|
2
|
Phycobilisomes and Phycobiliproteins in the Pigment Apparatus of Oxygenic Photosynthetics: From Cyanobacteria to Tertiary Endosymbiosis. Int J Mol Sci 2023; 24:ijms24032290. [PMID: 36768613 PMCID: PMC9916406 DOI: 10.3390/ijms24032290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/15/2023] [Accepted: 01/19/2023] [Indexed: 01/26/2023] Open
Abstract
Eukaryotic photosynthesis originated in the course of evolution as a result of the uptake of some unstored cyanobacterium and its transformation to chloroplasts by an ancestral heterotrophic eukaryotic cell. The pigment apparatus of Archaeplastida and other algal phyla that emerged later turned out to be arranged in the same way. Pigment-protein complexes of photosystem I (PS I) and photosystem II (PS II) are characterized by uniform structures, while the light-harvesting antennae have undergone a series of changes. The phycobilisome (PBS) antenna present in cyanobacteria was replaced by Chl a/b- or Chl a/c-containing pigment-protein complexes in most groups of photosynthetics. In the form of PBS or phycobiliprotein aggregates, it was inherited by members of Cyanophyta, Cryptophyta, red algae, and photosynthetic amoebae. Supramolecular organization and architectural modifications of phycobiliprotein antennae in various algal phyla in line with the endosymbiotic theory of chloroplast origin are the subject of this review.
Collapse
|
3
|
Meng C, Wang K, Zhang X, Zhu X. Purification, secondary structure and antioxidant activity of metallothionein zinc-binding proteins from Arca subcrenata. Protein Expr Purif 2021; 182:105838. [PMID: 33561519 DOI: 10.1016/j.pep.2021.105838] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 12/13/2020] [Accepted: 01/28/2021] [Indexed: 11/29/2022]
Abstract
Zinc-binding proteins named MT-M-I and MT-M-II were obtained after purification from metal-exposed hairy clams (Arca subcrenata) using gel permeation and ion-exchange chromatography. MT-M-I and MT-M-II were resolved by ion-exchange chromatography, and they were found to have similar molecular weights. MT-M-I and MT-M-II can bind 6 and 7 equivalents of Zn2+ in vitro, and they showed unusual migration behaviors in Tricine sodium dodecyl sulfate polyacrylamide gel electrophoresis (Tricine-SDS-PAGE). Such migration behaviors may be due to themetal thiolate clusters in these proteins. In terms of amino acid composition, the proportion of cysteine in MT-M-I and MT-M-II was approximately 30%, and glycine accounted for approximately 15%, where as aromatic amino acids were absent. Considering the performance in Tricine-SDS-PAGE and the amino acid compositions, MT-M-I and MT-M-II conform to the molecular characteristics of the metallothionein proteins. The structures were explored using circular dichroism (CD) and Fourier-transform infrared spectroscopy (FTIR). Also determined the antioxidant activities in terms of DPPH radical scavenging ability, hydroxyl radical (·OH) scavenging ability, and ferric-reducing/antioxidant power. The antioxidant activities of MT-M-I were found to be stronger than those of MT-M-II.
Collapse
Affiliation(s)
- Chunying Meng
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, 310018, PR China; Laboratory of Aquatic Product Processing and Quality Safety, Zhejiang Marine Fisheries Research Institute, Zhoushan, 316100, PR China
| | - Kuiwu Wang
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, 310018, PR China.
| | - Xiaojun Zhang
- Laboratory of Aquatic Product Processing and Quality Safety, Zhejiang Marine Fisheries Research Institute, Zhoushan, 316100, PR China
| | - Xinyue Zhu
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, 310018, PR China
| |
Collapse
|
4
|
Structural characterization and antioxidant potential of phycocyanin from the cyanobacterium Geitlerinema sp. H8DM. ALGAL RES 2018. [DOI: 10.1016/j.algal.2018.04.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
|
5
|
Patel SN, Sonani RR, Jakharia K, Bhastana B, Patel HM, Chaubey MG, Singh NK, Madamwar D. Antioxidant activity and associated structural attributes of Halomicronema phycoerythrin. Int J Biol Macromol 2018; 111:359-369. [PMID: 29307804 DOI: 10.1016/j.ijbiomac.2017.12.170] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 12/28/2017] [Accepted: 12/31/2017] [Indexed: 11/25/2022]
Abstract
In the present study, blue light absorbing pigment protein phycoerythrin (PE) is purified up to molecular grade purity from marine Halomicronema sp. R31DM. The purification method is based on the use of non-ionic detergent Triton-X 100 in ammonium sulphate precipitation. The purified PE is characterized for its antioxidant activity in vitro and in vivo. PE is noted to show substantial in vitro antioxidant activity probed by various biochemical assays. The PE moderated rise in the intracellular-ROS (reactive oxygen species) in wild type Caenorhabditis elegans upon heat and oxidative stress. Further, the antioxidant asset of PE is noted an expedient in averting the ROS associated abnormalities, i.e. impaired physiological behaviour (health span) and aging in C. elegans. The structural attributes of PE contributing to its antioxidant virtue are analysed; the presence of ample residues having antioxidant activity and chromophore-PEB in PE are identified as a source of its antioxidant activity. Furthermore, the stability of PE is assessed under three physico-chemical stresses, temperature, pH and oxidative stress.
Collapse
Affiliation(s)
- Stuti N Patel
- Post-Graduate Department of Biosciences, UGC-Centre of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol, Anand 388315, Gujarat, India
| | - Ravi R Sonani
- Post-Graduate Department of Biosciences, UGC-Centre of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol, Anand 388315, Gujarat, India; School of Sciences, P. P. Savani University, Dhamdod, Kosamba 394125, Gujarat, India.
| | - Kinnari Jakharia
- Post-Graduate Department of Biosciences, UGC-Centre of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol, Anand 388315, Gujarat, India
| | - Bela Bhastana
- Post-Graduate Department of Biosciences, UGC-Centre of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol, Anand 388315, Gujarat, India
| | - Hiral M Patel
- Post-Graduate Department of Biosciences, UGC-Centre of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol, Anand 388315, Gujarat, India
| | - Mukesh G Chaubey
- Department of Biotechnology, Shree A. N. Patel PG Institute, Anand 388001, Gujarat, India
| | - Niraj K Singh
- Department of Biotechnology, Shree A. N. Patel PG Institute, Anand 388001, Gujarat, India
| | - Datta Madamwar
- Post-Graduate Department of Biosciences, UGC-Centre of Advanced Study, Satellite Campus, Vadtal Road, Sardar Patel University, Bakrol, Anand 388315, Gujarat, India.
| |
Collapse
|
6
|
Sonani RR, Rastogi RP, Singh NK, Thadani J, Patel PJ, Kumar J, Tiwari AK, Devkar RV, Madamwar D. Phycoerythrin averts intracellular ROS generation and physiological functional decline in eukaryotes under oxidative stress. PROTOPLASMA 2017; 254:849-862. [PMID: 27335008 DOI: 10.1007/s00709-016-0996-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 06/08/2016] [Indexed: 06/06/2023]
Abstract
In vitro antioxidant virtue and life-prolonging effect of phycoerythrin (PE; a pigment protein isolated from Phormidium sp. A09DM) have been revealed in our previous reports (Sonani et al. in Age 36:9717, 2014a; Sonani et al. in Process Biochem 49:1757-1766, 2014b). It has been hypothesized that the PE expands life span of Caenorhabditis elegans (bears large resemblance with human aging pathways) due to its antioxidant virtue. This hypothesis is tested in present study by checking the effect of PE on intracellular reactive oxygen species (ROS) generation and associated physiological deformities using mouse and human skin fibroblasts, C. elegans, and Drosophila melanogaster Oregon R + and by divulging PE's structural attributes responsible for its antioxidant asset. PE treatment displayed noteworthy decrease of 67, 48, and 77 % in ROS level in mouse fibroblast (3T3-L1), human fibroblast, and C. elegans N2, respectively, arisen under chemical-induced oxidative stress. PE treatment delayed the development of paraquat-induced Alzheimer phenotype by 14.5 % in C. elegans CL4176. Furthermore, PE improved the locomotion of D. melanogaster Oregon R + under oxidative stress with simultaneous up-regulation in super-oxide dismutase and catalase activities. The existence of 52 Glu + Asp + His + Thr residues (having metal ion sequestration capacity), 5 phycoerythrobilin chromophores (potential electron exchangers) in PE's primary structure, and significant hydrophobic patches on the surface of its α- and β-subunits are supposed to collectively contribute in the antioxidant virtues of PE. Altogether, results support the hypothesis that it is the PE's antioxidant asset, which is responsible for its life-prolonging effect and thus could be exploited in the therapeutics of ROS-associated abnormalities including aging and neurodegeneration in eukaryotes.
Collapse
Affiliation(s)
- Ravi R Sonani
- Post-Graduate Department of Biosciences, UGC-Centre of Advanced Study, Sardar Patel University, Vadtal Road, Satellite Campus, Bakrol, Anand, Gujarat, 388 315, India
- Commission of Atomic and Alternative Energy, Institute of Biology and Technology of Saclay, 91191, Gif/Yvette, France
| | - Rajesh P Rastogi
- Post-Graduate Department of Biosciences, UGC-Centre of Advanced Study, Sardar Patel University, Vadtal Road, Satellite Campus, Bakrol, Anand, Gujarat, 388 315, India
| | - Niraj K Singh
- Department of Biotechnology, Shri A. N. Patel PG Institute, Anand, Gujarat, 388001, India
| | - Jaymesh Thadani
- Division of Phytotherapeutics and Metabolic Endocrinology, Department of Zoology, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat, 390002, India
| | - Puja J Patel
- Department of Biotechnology, Shri A. N. Patel PG Institute, Anand, Gujarat, 388001, India
| | - Jitendra Kumar
- The Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA, 94945, USA.
- DBT-PU-IPLS Programme, Department of Botany/Biotechnology, Patna University, Patna, Bihar, 800005, India.
| | - Anand K Tiwari
- School of Biological Sciences and Biotechnology, Indian Institute of Advanced Research, Koba, Gandhinagar, Gujarat, 382007, India.
| | - Ranjitsinh V Devkar
- Division of Phytotherapeutics and Metabolic Endocrinology, Department of Zoology, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat, 390002, India.
| | - Datta Madamwar
- Post-Graduate Department of Biosciences, UGC-Centre of Advanced Study, Sardar Patel University, Vadtal Road, Satellite Campus, Bakrol, Anand, Gujarat, 388 315, India.
| |
Collapse
|
7
|
Chen Y, Li C, Zhu J, Xie W, Hu X, Song L, Zi J, Yu R. Purification and characterization of an antibacterial and anti-inflammatory polypeptide from Arca subcrenata. Int J Biol Macromol 2017; 96:177-184. [DOI: 10.1016/j.ijbiomac.2016.11.082] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 11/14/2016] [Indexed: 12/30/2022]
|
8
|
Sonani RR, Rastogi RP, Patel R, Madamwar D. Recent advances in production, purification and applications of phycobiliproteins. World J Biol Chem 2016; 7:100-9. [PMID: 26981199 PMCID: PMC4768114 DOI: 10.4331/wjbc.v7.i1.100] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 11/07/2015] [Accepted: 12/16/2015] [Indexed: 02/05/2023] Open
Abstract
An obligatory sunlight requirement for photosynthesis has exposed cyanobacteria to different quantity and quality of light. Cyanobacteria can exhibit efficient photosynthesis over broad region (450 to 650 nm) of solar spectrum with the help of brilliantly coloured pigment proteins called phycobiliproteins (PBPs). Besides light-harvesting, PBPs are found to involve in several life sustaining phenomena including photoprotection in cyanobacteria. The unique spectral features (like strong absorbance and fluorescence), proteineous nature and, some imperative properties like hepato-protective, anti-oxidants, anti-inflammatory and anti-aging activity of PBPs enable their use in food, cosmetics, pharmaceutical and biomedical industries. PBPs have been also noted to show beneficial effect in therapeutics of some disease like Alzheimer and cancer. Such large range of applications increases the demand of PBPs in commodity market. Therefore, the large-scale and coast effective production of PBPs is the real need of time. To fulfil this need, many researchers have been working to find the potential producer of PBPs for the production and purification of PBPs. Results of these efforts have caused the inventions of some novel techniques like mixotrophic and heterotrophic strategies for production and aqueous two phase separation for purification purpose. Overall, the present review summarises the recent findings and identifies gaps in the field of production, purification and applications of this biological and economically important proteins.
Collapse
|
9
|
Rastogi RP, Sonani RR, Madamwar D. Physico-chemical factors affecting the in vitro stability of phycobiliproteins from Phormidium rubidum A09DM. BIORESOURCE TECHNOLOGY 2015; 190:219-26. [PMID: 25958145 DOI: 10.1016/j.biortech.2015.04.090] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Revised: 04/21/2015] [Accepted: 04/24/2015] [Indexed: 05/23/2023]
Abstract
The functionality and stability of phycobiliproteins (PBPs) phycoerythrin (PE), phycocyanin (PC) and allophycocyanin (APC) were investigated under various temperatures, pHs and oxidative stressors. All PBPs were thermostable up to 4-40°C; however, their concentration decreased rapidly at 60-80°C. The maximum stability of all PBPs was in the pH range 6.0-7.0. Decrease in PBPs content was found under high acidic (pH 2-4) and alkaline conditions (pH 8-12). The oxidizing agent (0.1-0.6%) showed the least effect on the stability of PBPs; however, 0.8-1.0% H2O2 caused significant loss of PBPs. Contrary to PE, PC and APC was more susceptible to an oxidizing agent. The chromophore associated with α- and β-subunit of PBPs and thus, their functionality (fluorescence) was severely affected under high temperature (60-80°C), and oxidizing agent, as well as low (2-4) and high (8-12) pH. Contrary to PC and APC, functionality of PE was surprisingly maintained even at pHs 6-12 and under oxidative stress.
Collapse
Affiliation(s)
- Rajesh Prasad Rastogi
- BRD School of Biosciences, Vadtal Road, Satellite Campus, Post Box No. 39, Sardar Patel University, Vallabh Vidyanagar 388 120, Anand, Gujarat, India.
| | - Ravi Raghav Sonani
- BRD School of Biosciences, Vadtal Road, Satellite Campus, Post Box No. 39, Sardar Patel University, Vallabh Vidyanagar 388 120, Anand, Gujarat, India.
| | - Datta Madamwar
- BRD School of Biosciences, Vadtal Road, Satellite Campus, Post Box No. 39, Sardar Patel University, Vallabh Vidyanagar 388 120, Anand, Gujarat, India.
| |
Collapse
|
10
|
Sonani RR, Sharma M, Gupta GD, Kumar V, Madamwar D. Phormidium phycoerythrin forms hexamers in crystals: a crystallographic study. Acta Crystallogr F Struct Biol Commun 2015; 71:998-1004. [PMID: 26249689 PMCID: PMC4528931 DOI: 10.1107/s2053230x15010134] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 05/25/2015] [Indexed: 11/10/2022] Open
Abstract
The crystallographic analysis of a marine cyanobacterium (Phormidium sp. A09DM) phycoerythrin (PE) that shows distinct sequence features compared with known PE structures from cyanobacteria and red algae is reported. Phormidium PE was crystallized using the sitting-drop vapour-diffusion method with ammonium sulfate as a precipitant. Diffraction data were collected on the protein crystallography beamline at the Indus-2 synchrotron. The crystals diffracted to about 2.1 Å resolution at 100 K. The crystals, with an apparent hexagonal morphology, belonged to space group P1, with unit-cell parameters a = 108.3, b = 108.4 Å, c = 116.6 Å, α = 78.94, β = 82.50, γ = 60.34°. The molecular-replacement solution confirmed the presence of 12 αβ monomers in the P1 cell. The Phormidium PE elutes as an (αβ)3 trimer of αβ monomers from a molecular-sieve column and exists as [(αβ)3]2 hexamers in the crystal lattice. Unlike red algal PE proteins, the hexamers of Phormidium PE do not form higher-order structures in the crystals. The existence of only one characteristic visual absorption band at 564 nm suggests the presence of phycoerythrobilin chromophores, and the absence of any other types of bilins, in the Phormidium PE assembly.
Collapse
Affiliation(s)
- Ravi Raghav Sonani
- BRD School of Biosciences, Sardar Patel University, Post Box No. 39, Satellite Campus, Vadtal Road, Vallabh Vidyanagar 388 120, India
| | - Mahima Sharma
- Protein Crystallography Section, Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Gagan Deep Gupta
- Protein Crystallography Section, Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Vinay Kumar
- Protein Crystallography Section, Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Datta Madamwar
- BRD School of Biosciences, Sardar Patel University, Post Box No. 39, Satellite Campus, Vadtal Road, Vallabh Vidyanagar 388 120, India
| |
Collapse
|
11
|
Singh NK, Sonani RR, Rastogi RP, Madamwar D. The phycobilisomes: an early requisite for efficient photosynthesis in cyanobacteria. EXCLI JOURNAL 2015; 14:268-89. [PMID: 26417362 PMCID: PMC4553884 DOI: 10.17179/excli2014-723] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 01/16/2015] [Indexed: 01/26/2023]
Abstract
Cyanobacteria trap light energy by arrays of pigment molecules termed “phycobilisomes (PBSs)”, organized proximal to "reaction centers" at which chlorophyll perform the energy transduction steps with highest quantum efficiency. PBSs, composed of sequential assembly of various chromophorylated phycobiliproteins (PBPs), as well as nonchromophoric, basic and hydrophobic polypeptides called linkers. Atomic resolution structure of PBP is a heterodimer of two structurally related polypeptides but distinct specialised polypeptides- a and ß, made up of seven alpha-helices each which played a crucial step in evolution of PBPs. PBPs carry out various light dependent responses such as complementary chromatic adaptation. The aim of this review is to summarize and discuss the recent progress in this field and to highlight the new and the questions that remain unresolved.
Collapse
Affiliation(s)
- Niraj Kumar Singh
- Shri A. N. Patel PG Institute (M. B. Patel Science College Campus), Anand, Sardargunj, Anand - 388001, Gujarat, India
| | - Ravi Raghav Sonani
- BRD School of Biosciences, Sardar Patel Maidan, Vadtal Road, Post Box No. 39, Sardar Patel University, Vallabh Vidyanagar 388 120, Anand, Gujarat, India
| | - Rajesh Prasad Rastogi
- BRD School of Biosciences, Sardar Patel Maidan, Vadtal Road, Post Box No. 39, Sardar Patel University, Vallabh Vidyanagar 388 120, Anand, Gujarat, India
| | - Datta Madamwar
- BRD School of Biosciences, Sardar Patel Maidan, Vadtal Road, Post Box No. 39, Sardar Patel University, Vallabh Vidyanagar 388 120, Anand, Gujarat, India
| |
Collapse
|
12
|
Rastogi RP, Sonani RR, Patel AB, Madamwar D. Occurrence of a functionally stable photoharvesting single peptide allophycocyanin α-subunit (16.4 kDa) in the cyanobacterium Nostoc sp. R76DM. RSC Adv 2015. [DOI: 10.1039/c5ra14508b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
We report the occurrence of a functionally stable single peptide APC α-subunit in cyanobacterium Nostoc sp. R76DM.
Collapse
Affiliation(s)
- Rajesh P. Rastogi
- BRD School of Biosciences
- Sardar Patel University
- Vallabh Vidyanagar 388120
- India
| | - Ravi R. Sonani
- BRD School of Biosciences
- Sardar Patel University
- Vallabh Vidyanagar 388120
- India
| | - Avani B. Patel
- BRD School of Biosciences
- Sardar Patel University
- Vallabh Vidyanagar 388120
- India
| | - Datta Madamwar
- BRD School of Biosciences
- Sardar Patel University
- Vallabh Vidyanagar 388120
- India
| |
Collapse
|