Interviewer 0:00:20
Good day, Dhiraj Sinha. I'm Arjun. I've had a look through your background and your professional record. I'm interested in hearing more about your work and how you see yourself fitting in here with our faculty. Ready to start?
Interviewer 0:00:27
Please start by introducing your professional journey in academia.
Dhiraj Sinha 0:01:12
Well my I after finishing my bachelors in Applied Sciences and Master in Bioinformatics, I got the fellowship from Czech Academy of Sciences for my PhD work from University of South Bohemia. The topic of my research is inter and intra domain interaction in the motor salute of type 1 destruction modification system. A computational study after that. I I continue as a post doc in the same group by and.
Dhiraj Sinha 0:01:48
Genome annotations as well as pangenome analysis. And in a later stage, I got an opportunity to move to US at UT Southwestern Medical Center in which I did bacterial resistance. I explored the resistance mechanism in in, in cancer drugs. By doing the by by employing my expertise in MD simulations and molecular modeling. Before this start my PSD I have.
Dhiraj Sinha 0:02:14
Of teaching the masters students of bioinformatics from APS University Rima in that I taught several subjects like biological databases, introduction to bioinformatics and Sequence analysis and algorithms in Computational biology. So this is all my academic journey from bachelors up to late up to now.
Dhiraj Sinha 0:02:10
Also one year teaching experience.
Interviewer 0:02:39
Thank you, Professor Sinha. Let’s structure this systematically as we proceed with verifying your skills.
Starting with your expertise in bioinformatics with a specialization in medical microbiology, can you elaborate on your experience in bacterial genome annotation and pangenome analysis? Specifically, could you explain the methodologies or tools you employed for these analyses?
Dhiraj Sinha 0:03:13
This is like the very nice question. I could started with the assembly of the genomes after we started with the sequence sequencing data when I which is sequenced in our own lab. Although I didn't do this sequencing part but after the sequencing. When I have the raw data, I started with the assembly and then do the functional analysis with the.
Dhiraj Sinha 0:03:01
Well.
Dhiraj Sinha 0:03:57
Proca pipeline after that with the there is a GC content analysis with the tools and with the Rory is the tool for the pen genome analysis. What I did it from 2-3 years back. Even more so, other tools are like for the. Comparative the boost algorithms what I believe is based upon the comparative genomics that how good does your query sequence is aligned well with the with the known datasets to see whether.
Dhiraj Sinha 0:03:59
Whether it is belongs to the same family or not. So this is an outline. Although this is long time, I could not like sequentially do explaining everything rightly. But what I remember from my thought that this is the things what I did at that time.
Dhiraj Sinha 0:04:16
Yeah, yes.
Interviewer 0:04:40
Let’s move on to your ability to teach theory and laboratory courses. You mentioned teaching master's students at APS University, covering subjects like biological databases, introduction to bioinformatics, and sequence analysis. Could you share some specific strategies or methods you used to teach these computational topics effectively to your students?
Dhiraj Sinha 0:05:29
Yeah, at that time, like, like it was like more than 1015 years back. But what I remember that at that time, the students come from the very diverse background. They are not from the computational side. So I try to build a nice like bridge between. Between the complex algorithms of the sequence and I'll suppose. Just take an example of the sequence analysis like I started with.
Dhiraj Sinha 0:05:48
Like explaining that what to do with when we have the raw sequences, how to compare that and it comes with that. I started with explaining the local alignment and and the global alignment which belongs to the. Which can explain global alignment is doing for the whole sequence while the local alignment for the stitches if you want to compare the genes particularly or exon and intron.
Dhiraj Sinha 0:06:18
And which is like like based upon that dynamic programming to find the best possible alignment, to optimize the best alignment. And after that, like the sequence analysis I explained with the, you know, phylogenetic analysis with the UPGMA method and other maximum parsimony methods and all. So this is like what I remember. It's quite wrong, but definitely I.
Dhiraj Sinha 0:06:19
I if I recall it perfectly, I could explain it now again to my future students.
Interviewer 0:06:52
Thank you, Professor Sinha. It’s clear that you made an effort to simplify complex concepts, utilizing foundational principles like local and global alignments, and incorporated methods such as UPGMA and maximum parsimony. Your focus on bridging diverse backgrounds stands out.
Let’s continue with your experience in student evaluation and exam duties. Can you provide details about the form or structure of assessments you’ve handled in your teaching role? What approach did you take to ensure fair evaluation?
Dhiraj Sinha 0:07:22
For the fair evaluation, I believe that there is 2 level of evaluation. I expect one from the students and one from the expertise like The Who is already like on the senior position on the department. I I feel because the the the the feedback comes from both the side could help me to develop into a best teacher.
Dhiraj Sinha 0:07:37
The students go with a template that whether I'm able to explain.
Dhiraj Sinha 0:08:14
Nicely that the topic or I am regular with the timings and I am like quite able to make the friendly atmosphere or the assignment with the assignments are quite competitive with that things that they could understand the theory and practical both. On the other hand, from the senior teachers or the faculty members who could give me the right feedback that.
Dhiraj Sinha 0:08:15
That whether I am teaching effectively or not and they could give the good comments that I show how I should improve my skills to deliver best at my best to the students. So this is the two way level of assessment I expect from the students as well as from the department too.
Interviewer 0:08:46
Thank you, Professor Sinha. You’ve described a thoughtful dual-level approach, incorporating feedback from both students and senior faculty for continuous improvement. It’s commendable that you value input from both perspectives to refine your teaching methods and ensure fairness.
Now, let’s examine your ability to guide student projects and research. Could you share an example of a project or research topic you’ve supervised, detailing how you helped students navigate the process?
Dhiraj Sinha 0:10:03
Well, because I start, I believe that I supposed to start my teaching to the master student as well as undergraduate. So the project should be started with a very what we call not like, not very like undoable, but but which is related to their work the and I could like expecting to make the projects which is like based upon my past experience. Bacterial genome analysis, taxogenomics as well as like the pangenome analysis. On the other hand, what I did it in the structural biology basically with the exploring the resistance mechanism with the certain drugs in the cancers. These are the projects which is truly come in the mind right now, but I could make the other ideas like. To how to analyze this structure functional? How to?
Dhiraj Sinha 0:10:05
Like set up the structure functional relationship in the biomolecular complexes. So these are the few like the two topics which is come in the mind where I could start or from where I could come up for the students.
Interviewer 0:10:37
Understood, Professor Sinha. You’ve highlighted bacterial genome analysis, taxogenomics, pangenome studies, and structural biology-based projects, particularly focusing on resistance mechanisms and structure-function relationships. It's encouraging that you tailor projects to both student capability and your expertise.
Let’s now examine your communication and teaching approach. How do you ensure clarity and engagement while introducing complex bioinformatics concepts in your lectures? Could you provide an example?
Dhiraj Sinha 0:10:47
If we go with them like.
Dhiraj Sinha 0:10:46
Uh. Just, uh.
Dhiraj Sinha 0:10:54
Uh, just take an example of uh. Suppose uh.
Dhiraj Sinha 0:10:56
Which example I could take perfectly?
Dhiraj Sinha 0:10:59
Uh, this could be.
Dhiraj Sinha 0:11:00
Yeah.
Dhiraj Sinha 0:11:04
Well.
Dhiraj Sinha 0:11:09
Yeah, the.
Dhiraj Sinha 0:12:24
Yeah, so. So suppose I could have and 11 complex algorithm is known as. Hidden Markov model So just an example for the hidden Markov model there is a like the first thing what is the best like the algorithms to go with the forward and backward algorithm and go for the Viterbi and then bomb well system. There is three-step of the algorithms which could be explained best with the best in the hidden Markov model. What are the hidden layers? What are the open and what how the like it is? With the bacterial or or with the sequences of the protein or the at the genome. So if you go with the like, I'm not able to recall the like the algorithms particularly, but what I remembered with the if you move on to move with the next step that there is if take an example with the ATCG sequence genome like DNA sequences. So if there is a long stretch to which.
Interviewer 0:11:20
Feel free to take your time. Let
Dhiraj Sinha 0:12:53
Which residue comes like next, that is depends upon the certain probability. So if we assign the initial probability and then making the Bayesian statistics with that that given that these are the already in the sequences, what is the next possible residue to be there? So these are the like the idea, but I could go revise the things better to go with the. If you go with details with the algorithms in the computer.
Dhiraj Sinha 0:12:54
Biology, yeah.
Interviewer 0:13:32
Thank you, Professor Sinha. You’ve outlined a thoughtful approach using the Hidden Markov Model as an example: breaking it down into foundational steps like the forward-backward algorithm, Viterbi, and Baum-Welch. Explaining probabilistic predictions in sequences, such as assigning probabilities to DNA residues, demonstrates your effort to simplify and relate the concept effectively.
Next, let’s address your research publications in reputed journals. Can you highlight one significant publication and discuss its impact or contribution to the field of bioinformatics?
Dhiraj Sinha 0:14:17
OK, So the the recent publications which is like it is under the pipeline the manuscript, what I real do really do at UPS Southwestern Medical Center that there is a drug going to be like in the in the clinical trial at that time and which is the compound name is MRTX 1133 which is which works with the KRAS G12D mutations.
Dhiraj Sinha 0:15:01
So with the lengthy mutate that they have the they are experimental set up to find out the problem the most putative mutations which makes the drug ineffective and they want from my side that please explain how these mutations if is how these mutations are are like the mechanism that they make the drug ineffective because in the cancers or any kind of the. Like the diseases after applying certain.
Dhiraj Sinha 0:15:08
Certain time that the drug became the ineffective, so to to find out the real mechanism that helps us to resolve the problem to overcome the drug resistance. So at that time I did the nice computational simulations study, MD simulation study and put my initial predictions to these are the mechanism for their mutation. What they have offering me that these are the putative mutations which is make the reason to to be drug.
Dhiraj Sinha 0:16:32
So the most valuable thing that inside the binding pocket, if certain mutations happen, then definitely the binding of the drug is Hanford. But there are certain mutations in the complex protein which is away from the binding pocket. So doing the simulations at the dynamic level, I could easily or not like rigorously reach to the conclusion that how? They're the like the the mutations which are far away from the binding effect. Binding pocket can affect the binding of the of the drug or the molecule against the protein. So these are the things which is under the pipeline which is already published there when I started there. There is A1 paper which is already in the like reviewing stage and they wants me to there is a junk JNK register JNK sensitiveness they have the compound and. That is, I explored with the simulations the.
Dhiraj Sinha 0:16:34
The sensitivity issue like how the the mutation effect the binding of the of the molecule or what are the conformational changes happens with this type of A or B in junk one or two how they are differ with each other at that at the residual level. So these are the things which I did it like recently or one year back or mostly now is the second year actually to put it there things like that.
Interviewer 0:17:23
Thank you, Professor Sinha. You’ve provided a detailed and impactful description of your research. Your work on elucidating the mechanisms of drug resistance, particularly for KRAS G12D mutations and compounds like MRTX 1133, demonstrates significant contributions to understanding how mutations—both within and distant from the binding pocket—can hinder drug efficacy. This type of research has direct implications for addressing drug resistance challenges in cancer therapy, making it highly relevant and valuable to the field.
Let’s now focus on your experience with industry projects or consultancy. Can you share any direct involvement in these areas, and if so, highlight the scope and your contributions?
Dhiraj Sinha 0:17:54
I'm sorry but I did not yet engage with any like the at the industry level. My research, I thoroughly like went with the academic journey. Like from from University of Allahabad to University of Texas. I just come my career always reached go with the vent. I come with the always with the academic background. I'm sorry that I do not have able yet, but I have right enthusiasts to collaborate with the.
Dhiraj Sinha 0:18:28
Industry or to do the predictions and to give the my computational results to come with the experiments and which could be the like the industrial. Industrial, industrial platform, we give the initial things to start the productions or like to make the collaboration. I have the right like good enthusiasm, but up to now I do not have yet.
Dhiraj Sinha 0:18:30
Any kind of experience with the industry? I'm sorry with that, I'm fairly to say.
Dhiraj Sinha 0:19:21
Yes, I, I, yeah, I'm sorry, but I, I like more with the academic academia than with the real like the industrial industrial thing. But I, I love to make the good collaboration with the industry. This is the things like making the industry my curriculum to the students for the future. So this is the things which I believe that is that is something missing in my journey that I never have the exposure at the industry level, but the I want to fill up.
Dhiraj Sinha 0:19:44
And to my students that if they want, they could move to the industry to to make them more experimental or more like the more more doing hand sound sessions so that they have the good exposure with the tools and developing their skills to make good contribution in the industry too. This is the things which I have to really work hard to develop into develop the students for best for their best career in.
Interviewer 0:19:13
Understood, Professor Sinha. It's clear that your academic journey has been your primary focus, and I appreciate your honest acknowledgment of limited industry experience. Your
Dhiraj Sinha 0:19:48
Academia as well as in industry too.
Dhiraj Sinha 0:19:50
This is my good, good challenge to go with that.
Dhiraj Sinha 0:19:51
For disturbance.
Interviewer 0:20:19
Thank you, Professor Sinha, for your thoughtful reflection. It’s evident that you are deeply committed to equipping your students with the skills and knowledge they need to excel in both academia and industry. Your enthusiasm for fostering collaborations and enriching students’ exposure to practical, hands-on experiences is commendable.
We’ve now covered all the required aspects. Please give me a moment.
Interviewer 0:20:22
Sorry to interrupt, we're down to the last 5 minutes.
Interviewer 0:20:33
Professor, to begin, could you share which foundational bioinformatics concept you find most rewarding to teach, and why?
Dhiraj Sinha 0:21:12
The the first thing where the bioinformatics the most inspiring things or what I believe with my experience first with the comparative analysis that whatever the data, known data and if we have the raw data, the best thing to do is start with the doing the alignment that how far or how close the your given sequence is and then move to the next step that how is the evolutionary relationship of the of the sequences. From the family and then.
Dhiraj Sinha 0:22:03
Evolutionary relationship building the sequences and then go ahead with more detailed analysis of in terms of their like, from which family it belongs and then what is the like. To annotate the sequences too. So this is the like the things what I believe that the band format is start at the sequence level, but the. Scenario change with the mice structure because this is my best strength to go with the sequence as well as structure both because I did like the one postdoc in sequence at this NGS data analysis and while my PhD work and my subsequent like the recent postdoc was on instructor biology. So there is a structural sequence structure and function like the central dogma of the band formatics to go with that also. So this is.
Dhiraj Sinha 0:22:13
Basically at the structural level, how how the best?
Dhiraj Sinha 0:22:47
To reach out the functional confirmation and doing the simulations to explain the the effect of the mutations or the resistance mechanism or how how the particular relevance of the interactions can be like the bounded and non-bound interaction helps for the functionality of the complex. So these are the things which really means to me.
Dhiraj Sinha 0:22:33
Methods. Which methods best to sample the confirmation to find out the to most functional?
Dhiraj Sinha 0:22:49
Like to grasp the things and which is right which is not able to explain at the like the experimental doing the in vitro, in vivo, but at the molecular level or at the sequence level, I could deal with that nicely I could expect.
Interviewer 0:23:11
Thank you, Professor, for sharing your perspective. It’s insightful to hear how you emphasize starting with comparative sequence analysis to build evolutionary relationships and gradually progress to structural and functional dynamics, integrating both molecular and sequence-level insights.
Let’s proceed further.
Interviewer 0:23:46
Professor Sinha, I see that you have substantial experience in biophysics with a focus on molecular dynamics, modeling, and quantum calculations.
Could you discuss one of your research publications—for instance, [your work related to "doi:10.1021/acs.jmedchem.2c01834"](https://doi.org/10.1021/acs.jmedchem.2c01834)? Focus specifically on the research problem you addressed and how you see this influencing your teaching of bioinformatics concepts.
Dhiraj Sinha 0:24:00
I'm sorry but with the DUI I'm not able to recall which paper you are mentioning now.
Dhiraj Sinha 0:24:01
If I have that that title of the paper then I could connect it nicely.
Dhiraj Sinha 0:24:30
I'm sorry, this is like, I don't think this paper is belongs to me. This is his heat shock protein.
Interviewer 0:24:23
Of course, I understand. The paper's title is "Targeting the dimerization of heat shock protein 90: Design, synthesis, and biological evaluation of small molecules." Could you elaborate on the research focus of that work and connect it to how you would integrate such advanced concepts into a bioinformatics classroom setting?
Dhiraj Sinha 0:24:35
HSP protein. This is like the different than.
Dhiraj Sinha 0:24:37
What I did it up to now?
Dhiraj Sinha 0:25:07
My my work on Keras G12G is is under the pipeline. While the junk 1 and 2 is already published in GMC. The others are like are submitted of ECO R 1241. These are the papers which is from the explain the translocase activity in the motor sub unit and then there is one PEPS 2 synthesis paper which is recently published.
Dhiraj Sinha 0:25:08
Up to now, I don't think that I this paper belongs to me that HS people came.
Interviewer 0:25:31
Thank you for clarifying, Professor. Let us focus on the areas you mentioned, such as your work around translocase activity in the motor subunit or the PEPS 2 synthesis paper. Could you explain the core contributions of one of these works and how you might use this research to teach and inspire students in a classroom setting?
Dhiraj Sinha 0:26:04
Yeah, perfectly. So this is this was the work what I did in my PSD work that to extend the relevance of the interactions because the functionality of the complex depends how well the the the how well the the there is. Well they they are they make the connections or or interactions with the other residue to make the functional molecule. So in my PSD there is like the.
Interviewer 0:26:03
Our scheduled time for the interview is now up.
Dhiraj Sinha 0:27:04
There is a square printer arrangement of the R subunit in which there is a four domain endonuclease domain that is catalytic domain, then two helicases for the transfer case activity and then there is the helical domain to bind with the rest of the protein. So there is an interface between the domains and I did the mutation analysis to explain how well. And that these are interactions are responsible for the transfer case activity which is like which is a good example, which is an like important for the restriction activity in type 1 restriction modification system to to to restrict the molecule at the at the unknowing unknown like restriction sites after translocation they restrict, but the mechanism is still unknown that was.
Dhiraj Sinha 0:27:11
Like at that time I did my PhD or PSD work PhD project to explain those relevance of the interaction at the interface of the domains and.
Dhiraj Sinha 0:27:12
These are the things which I explored during my like the research work in my PhD.
Interviewer 0:27:39
That's a fascinating and detailed exploration, Professor. It seems your research provides a clear pathway to teaching complex molecular interactions and their implications in restriction-modification systems.
How would you translate these advanced concepts into pedagogical strategies for students, ensuring these intricate dynamics are accessible and engaging in a classroom setting?
Dhiraj Sinha 0:28:38
In the visualization program and then do the short simulations to explain the dynamics and how the conformational changes by doing the mutations and all go with the more with the enhanced hands-on sessions to to see the real examples to the students so that they can attract to the topic well. And they understand well not only with the at the theoretical level, but at the practical level too.
Interviewer 0:29:05
That's an excellent approach, Professor Sinha. Combining theoretical foundations with hands-on computational exercises, such as structure visualization and simulations, offers students a comprehensive understanding of complex topics. It not only engages them but also equips them with practical skills highly relevant to modern bioinformatics.
Thank you for sharing this insight. Let's continue.
Interviewer 0:29:31
Professor, please outline your three-year research roadmap if you join as a faculty member specializing in Bioinformatics. How do you envision this roadmap aligning with the responsibilities mentioned in the job description, such as driving publications, fostering research development, and contributing to industry-academia collaborations?