1 - Tezpur University



Biographical Sketch: Suvendra Kumar Ray (suven@tezu.ernet.in, 09954472151)

Associate Professor, Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur-784028, Assam, India

S. K. Ray did his PhD with Dr. Ramesh V. Sonti in the field of Molecular Plant Microbe Interactions at Centre for Cellular Molecular Biology (CCMB), Hyderabad, India. He characterized a type II protein secretion system and a nonfimbrial adhesin in Xanthomonas oryzae pv. oryzae, the causal agent of bacterial leaf blight in rice.

After joining Tezpur University since 2002, he is doing research in fields of Molecular Evolution and Molecular Plant Microbe Interactions. His laboratory is focusing to characterize common virulence factors of plant and animal pathogenic bacteria and their evolutionary significance.

In 2010 S. K. Ray went on a DBT Overseas Associateship to work in the laboratory of Dr. Stephane Genin, Laboratoire des Interactions Plantes-Microorganisms (LIPM), CNRS-INRA, Castanet-Tolosan, France, where he studied the role of rpoN in Ralstonia solanacaerum virulence.

He teaches genetics and molecular biology to graduate and post-graduate students.

Scientific achievements

A. Publications

➢ Research articles in journals

1. Prajapati VK, Satapathy SS, Satish Kumar MV, Buragohain AK, Ray SK. (2015). Evidences indicating the involvement of selection mechanisms for the occurrence of C34 anticodon in bacteria. J Cell Sci Molecul Biol. 2, 112. (No IF)

2. Ray SK, Kumar R, Peeters N, Boucher C, Genin S. (2015). rpoN1, but not rpoN2, is required for twitching motility, natural competence, growth on nitrate and virulence of Ralstonia solanacearum. Front. Microbiol, 6, 229. Impact factor: 3.9

3. Satapathy SS, Ray SK. (2014). Missed cites. Curr Sci, 107, 1633-1634. Impact factor: 0.935

4. Ray, SK, Baruah, VJ, Satapathy S S., Banerjee R. (2014) Co-translational protein folding is revealing the selective use of synonymous codons along the coding sequence of a low expression gene. J. Genet. 93, 613–617. Impact factor: 1.01

5. Satapathy SS, Powdel BR, Dutta M, Buragohain AK, Ray SK (2014) Constraint on dinucleotides by codon usage bias in bacterial genomes. Gene, 536, 18-28. Impact factor: 2.25

6. Satapathy SS, Powdel BR, Dutta M, Buragohain AK, Ray SK (2014) Selection on GGU and CGU codons in the high expression genes in bacteria. J Mol Evol, 78, 13-23.Impact factor: 2.27

7. Pandey A, Ray SK, Sonti R, Rajeshwari R (2014) gltB/D mutants of Xanthomonas oryzae pv. oryzae are virulence deficient. Curr Microbiol, 68, 105-112. Impact factor: 1.5

8. Kumar R, Barman A, Jha G, Ray SK (2013) Identification and establishment of genomic identity of Ralstonia solanacearum isolated from a wilted chilli plant at Tezpur, North East India. Current Sci, 105, 1571-1578. Impact factor: 0.935

9. Barman A, Kumar P, Kumar V, Doley R, Ray SK (2013) Heat shock at 37°C with plasmid ligated at 37°C yields more number of Escherichia coli transformants than plasmid ligated at 16°C: a possible role of ligated plasmid conformation during heat shock. Current Sci. 104, 747-751. Impact factor: 0.935

10. Khanppnavar B, Baruah S, Ray SK (2013) TALE: an emerging tool for genome editing and genetic engineering. Current Sci. 104, 576-578. Impact factor: 0.935

11. Satapathy SS, Dutta M, Buragohain AK, Ray SK (2012) Transfer RNA gene numbers may not be completely responsible for the codon usage bias in asparagine, isoleucine, phenylalanine, and tyrosine in the high expression genes in bacteria. J Mol Evol, 75, 34-42, Impact factor: 2.274

Erratum: Satapathy, S.S., Dutta, M., Buragohain, A.K. and Ray, S.K. Erratum to: Transfer RNA gene numbers may not be completely responsible for the codon usage bias in asparagine, isoleucine, phenylalanine, and tyrosine in the high expression genes in bacteria. J Mol Evol 75: 151–153 (2012) Impact factor: 2.274

12. Tanti B, Ray SK, Buragohain AK. 2012, Differentiation of petroleum hydrocarbon-degrading Pseudomonas spp. based on PCR-RFLP of the 16S-23S rDNA intergenic spacer region. Folia Microbiol (Praha). 57:47-52. Impact factor: 0.677

13. Powdel BR, Borah M and Ray SK. 2010, Strand specific mutational bias influences codon usage of weakly expressed genes in Escherichia coli. Genes to Cells. 15:773-82 Impact factor: 2.68

14. Satapathy SS, Dutta M, Ray SK. 2010, Variable correlation of genome GC% with transfer RNA number as well as with transfer RNA diversity among different bacterial groups: α-Proteobacteria and Tenericutes exhibit strong positive correlation in both cases. Microbiological Res. 165:232-42, Impact factor: 2.308

15. Satapathy SS, Dutta M, Ray SK. 2010, Higher tRNA diversity in thermophilic bacteria: a possible adaptation to growth at high temperature. Microbiological Res 165, 609–616.

16. Powdel BR, Satapathy SS, Kumar A, Jha PK, Buragohain AK, Borah M, Ray SK. 2009, A study in entire chromosomes of violations of the intra-strand parity of complementary nucleotides (Chargaff’s second parity rule). DNA Res.16:325-343, Impact factor: 5.164

17. Ranjan A, Sinha AY, Dubey B, Saikia A, Buragohain AK, Ray SK. 2008, Analysis of in-frame dinucleotides, encoded amino acids and synonymous codon choice in bacterial genomes reveals a common pattern. Curr Sci. 94:225-232, Impact factor: 0.935

18. Das D, Satapathy SS, Buragohain AK, Ray SK. 2006, Occurrence of all nucleotide combinations at the third and the first positions of two adjacent codons in open reading frames of bacteria. Curr Sci. 90:22-24, Impact factor: 0.935

19. Verma SK, Das D, Satapathy SS, Buragohain AK, Ray SK. 2005, Compositional symmetry of DNA duplex in bacterial genomes. Curr Sci. 89:374-384, Impact factor: 0.935

20. Das D, Verma SK, Ray SK. 2005, An altered G + C% region within potential hemagglutinin orfs of Ralstonia solanacearum. Curr Sci. 88:786- 792, Impact factor: 0.935

21. Ray SK. 2004, Riboswitch: A new mechanism of gene regulation in bacteria. Curr Sci. 87:1168-1169, Impact factor: 0.935

22. Ray SK, Rajeshwari R, Shrama Y, Sonti RV. 2002, A high-molecular-weight outer membrane protein of Xanthomonas oryzae pv. oryzae exhibits similarity to non-fimbrial adhesins of animal pathogenic bacteria and is required for optimal virulence. Mol Microbiol. 46:637-47, Impact factor: 5.01

23. Ray SK, Rajeshwari R, Sonti RV. 2000, Mutants of Xanthomonas oryzae pv. oryzae deficient in general secretory pathway are virulence deficient and unable to secrete xylanase. Mol Plant-Microbe Interact. 13:394-401., Impact factor: 4.43

➢ Other publications:

1. Ray SK, Kalita E. 2014. Impact of MSc Biotechnology programme supported by DBT GoI, on research and teaching of modern biology in India. Curr Sci, 107: 938-939.

2. Barman A, Kumar P, Kumar R, Ray SK, 2013, Exclusion of replicative transposons from linear chromosome: an interesting observation. Indian Journal of Fundamental and Applied Life Sciences, 3 (2): 85-90.

3. Barman A, Baruah VJ, Ray SK, 2013, A critical insight into the double strand break repair model of homologous recombination. Indian Journal of Fundamental and Applied Life Sciences, 3(1): 233-236.

4. Dubey B, Buragohain AK, Ray SK. 2009, Positive correlation of bacterial genome G + C %  with the number of different anticodons used by the genome to decode all the codons. Icfai Univ J Biotech 3:39-47,

5. Ray SK, Buragohain AK, Sen S., 2008, A simple theoretical approach to estimate the minimum bending angle between the two adjacent codons on a mRNA to overcome the steric hindrance between the anicodon stem-loops of two tRNA molecules binding to the codons. Icfai Univ J Biotech, 2:60-64.

6. Ray, S. K. and Buragoahin, A. K. (2007) Evolutionary genomics: a computational approach to find out common genomic patterns in eubacterial genomes, Network, Security And Soft Computing (edts: Bhattacharyya D. K. and Hazarika, S. M.), Narosa Publications, New Delhi, pp 224-229.

7. Ray, S. K., Cloning of organisms, 2007, In the abstract book of the symposium “Stem cells-in future medicine”, organized by dept. of biochemistry, Centre for genetic diseases & molecular biology, Pt. J. N. M. medical college, Raipur.

8. Buragohain, A. K. and Ray S. K., PhD entrance examination schedules, 2007, Curr Sci., 93: 279.

9. Ray S. K., Book review: "DNA The Secret of Life" by James D. Watson and Andrew Berry, 2004, Arrow publisher, 2007, Curr. Sci., 92: 387-388.

10. Ray S. K., Book review: A clone of your own: the science and ethics of cloning, 2004, by Arlene Judith Klotzko by Oxford University Press, 2007, Curr. Sci., 92:126-127.

11. Ray S. K.  “Squeeze Your Brain” 2005, A Few Riddles for Passing Time, A tiny riddle book printed at M/s Seagull Industry, Lachit Chowk, Tezpur-784 001.

Book chapter

Ray SK, Deka RC, Hussain A, Choudhury HK, and Choudhury K. (2014). The industry inside. (Page 41-80) in the book “The world of Chemistry” (edt Choudhury HK). ISBN 978-81-929471-0-5

General write up

1. How did I learn double helix structure of DNA: it took me almost 10 years to understand it. Souvenir-InSCIgnis-’2014, Vol I, 2014 Page: 34-35.

2. Learning Ramachandran plot in protein structure: it took almost 15 for me get an insight into the beautiful phenomenon. Souvenir-InSCIgnis-’2015, Vol II, Page: 1-2.

B. Projects

|Sl |Project |PI, Co PI |Agency |Duration |Amount |Status/Date |

|1 |Protein Folding Kinetics is a |Dr. S. K. Ray; |DBT, Twinning |2 years |24.72 lakhs to | |

| |Selection Force on Shaping Codon Usage|Dr. S. S. Satapathy, | |11/08/2014 – |TU | |

| |Bias in the High Expression Genes. |CSE, TU | |10/08/2016 |(out of 42.32) | |

| |(DoRD/MBBT/SKR/20-221) |Dr. R. Banerjee, | | | | |

| | |Kolkata University | | | | |

|2 |Sequencing genomes of some |(1)S. K. Ray., MBBT, |DBT, Govt. of India |3 years |127.00 lakhs |Started |

| |bacteria that invade/resides |TU |Under U-XL-NER | | |10th Oct 2013 |

| |in tomato plant | | | | | |

|3 |Studying the role of rpoN, the | (1). S. K. Ray., |IFCPAR/CEFIPRA, |3 Years |44.17 lakhs(to |Ongoing |

| |alternative sigma factor, in the |MBBT, TU (PI from |New Delhi, India |(Likely to start |Indian PI) |Started November |

| |pathogenicity of R. solanacearum, the |India) | |from December 2013)|Euro 45000.00 |2013 |

| |causal agent of bacterial wilt in |(2)Dr. S. Genin, LIPM,| | |(French PI) | |

| |plants |CNRS-INRA, Castanet | | | | |

| | |Tolosan, FRANCE (PI | | | | |

| | |from France) | | | | |

|4 |Characterization of a potential auto |S. K. Ray |DBT, Twinning |3 years |35.66 lakhs |Ongoing |

| |transporter adhesion function in |Dr. R. V. Sonti, CCMB,| |17 Dec 2012 – 16 |(out of 61.32) |Started November |

| |Ralstonia solanacearum, the causal |Hyderabad | |Dec 2015 | |2012 |

| |agent of bacterial wilt in plants | | | | | |

|5 |Understanding codon usage bias in |S. K. Ray |DBT, Twinning |2 years |15.50 lakhs |Ongoing |

| |organisms |Mr. S. S. Satapathy, | |17 Dec 2012 – 16 |(out of 26.36) |Started November |

| | |CSE, TU | |Dec 2014 | |2012 |

| | |Dr. T. C. Ghosh, Bose | | | | |

| | |Institute, Kolkata | | | | |

|6 | | | | | | |

C. Invited talks/Seminar participated/attended/work presented

Recognition

A. Invited to review manuscripts submitted to the following journals

1. BMC Molecular Evolution

2. BMC Genomics

3. FEBS Lett

4. African Journal of Biotechnology

5. International Journal of Bio-deterioration and Biodegradation

6. Cellular and Molecular Life Sciences

7. Infection, Genetics and Evolution

8. Biostatistics

9. Notulae Scientia Biologicae

10. Actabiotheortica

B. Invited to review project submitted to

1. DST, Govt of India

C. Thesis reviewer

1. Gauhati University

2. NIPGR, New Delhi

D. Editorial board member

1. Open Journal of Cell Science & Molecular Biology (published from Hyderabad, India)

2. Resonance: journal of science education (published by the Indian Academy of Sciences)

3. Aperito Journal of Computer Science and Biology (published from USA)

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