Montclare Lab Group

We are an active group of young scientists and engineers working on the interface of chemistry, biology and engineering. To inspire and educate the public about our research, educational mission and extracurricular interests, we've started this blog. We hope to directly connect people to the ways we think about the world and share our discoveries with you!
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#RealTimeProtEng

After months of seemingly endless grant writing and faculty obligations, I now have a short break where I can breathe until my next grant.  

So to get you at the very least up to date with what’s been going on, here’s a lowdown on the stuff we’ve done:
- we made fluorinated protein polymers by biosynthetically incorporating fluorinated amino acid building blocks and discovered that by doing so, we can significantly alter the mechanical properties.  The new building blocks made the materials more rigid and gel like (http://pubs.acs.org/doi/abs/10.1021/bm3005116)
 
-in a collaboration with folks at NYU Chemistry and UCSF, we engineered clathrin proteins (commonly found in brain) to crystallize gold on its cage surface in an ordered array—generating cage adorned by golden rods! (http://pubs.rsc.org/en/content/articlelanding/2012/jm/c2jm35019j)
 
The above work has significant implication in biomaterials for biomedical applications as well as for energy and electronics. More details will follow.  
 
But what I want to also set up in this blog entry is our new idea to share snippets of what we do in real time.  There’s always a lot of stuff we do in research that can be frustrating, funny, baffling and beautiful!  As our blog is linked to twitter, we will use the handle #RealTimeProtEng to share it with all of you. An example of a protein fiber embedded with a chemical is shown above.  
 
Essentially the goal is to give you a sense of what our daily scientific experiments look like.  Please feel free to comment or question.

Jin Montclare

Recognizing bias and making a difference

In light of International Women’s Day, I have decided to write about gender bias.  

I am a scientist/ engineer/ educator and I consider myself extremely fortunate to be at an academic institution leading a group of bright, creative, hard-working young scientists.  I firmly believe it is a privilege to mentor others and have a deep rooted responsibility to make sure I do my best to help my students develop into the best scientist that can be. Their future is dependent on their success and so my role as their mentor is extremely important.

I also happen to be female and I fully recognize the forms of discrimination out there in terms of gender, ethnicity and race.  While it unfortunately exists, it never entered my mind that I could engage in gender bias until I had my daughter.  I realized that in my daily interactions with her, my initial comments were on her physical appearance (ie-her cute outfit), which were followed by her actions (ie-her love of building with her blocks).  The subtle emphasis my daughter was receiving from me was that her appearance was more important than her actions.  

Once I realized my own subtle form of bias, I stopped.  I now consciously note her actions and make sure that is emphasized foremost in my daily interactions with her.  

From this experience, I am more diligent about recognizing subtle forms of gender bias.  They do exist and I urge you to self-reflect and make the change in your own actions.  I am more conscientious of my actions with my students and colleagues.  And importantly, I am expressing this as a form of support to other women and women in STEM fields.  Building support where we recognize bias is essential to increasing women and diversity.  So please share this perspective with others and make a difference.  

Jin Montclare 

What are your views on gender bias? 

Reflection on Hurricane Sandy—A Call for Solidarity

While I have always respected nature as a scientist/engineer, I never faced the wrath of nature until Sandy. As a scientist, my perspective has been to understand and exploit nature to engineer better systems. However after experiencing the hurricane that left us powerless on so many levels, I did what any scientist would do when an experiment failed or an unexpected result surfaced, I started the process of reflection and analysis. During this process, our apt had lost power, leaving us with no light, no heat, no water and no Internet. While it was unfortunate, I was thankful that my family was all right. However, I began to worry about my neighbors who were too old to walk up and down the stairs to get out out/get food, my students who were scattered throughout NY/NJ and all those seriously affected by Sandy. It was then I realized that reaching out was imperative and providing knowledge about the status of my building, my university, my lab was important to my neighbors, my colleagues, my students and my citizens. And so by word of mouth, phone calls, emails and social media, I did what I could to keep awareness and maintain a sense of stability in all the chaos. But more importantly, reach out to others and provide support as the only way we can overcome such natural disasters is by facing it together as a group. Like I always say to the scientists and engineers in my laboratory, in order to make advances in science, we must work together. In the wake of Sandy, in order to get back to normal, we must work together. We will be certain to regain power over this situation through solidarity. From Tuesday night’s election, our president stated, “We are an American family, and we rise and fall together as one people and as one nation.” So family, friends, colleagues, teachers and students reach out to one another and let us rise to the occasion and connect.

Jin Montclare

I loved science even without realizing it. Even before 10, a piece of shiny glass, a piece of light-reflecting plastic, a cup of soda water, a team of ants and a frog found at road side were the objects of my observations. Not even with a clear idea why I was attracted by these things, I just loved to observe. Everything seemed so amazing and mysterious.

After being educated in science at school, I became even more fascinated and began wondering “why” the objects I see would behave the way they did.  I would get lost in my imagination by asking “why” and play this game at least until an adult would interrupt me.

Without any ambition to discover some super special chemical or material, I chose chemistry as major for college study. And I did so simply because I wanted to know the “secrets” behind “everything”.  My college education greatly satisfied my curiosity while opening a bigger world in front of me, in which the knowledge of science has equipped me to imagine and create new things.

Now I am still studying and enjoying science with the people who have the same passion for it. We all have a same dream, which is to make the world better with the power of science!

Iamscience,  chemistry, observation, create

Jell-O, Wine and Proteins

First off, allow me to introduce myself. My name is Joe and I am the newest member of the Montclare lab. I wanted to share two encounter that exemplify how just how mystifying science can truly be.
 
The first story involves my girlfriend, Ali, who babysits for a family and often has to deal with a sometimes inquisitive but always demanding 4 year old boy. One day Ali was was trying to get the little boy to eat his dinner and explained to him that he needs to eat protein in order to grow strong. He had no idea what a protein was. She tried explaining it to him with the help of the protein page on Wikipedia. Shown on the Wikipedia page is the 3D representation of myoglobin and this is what my girlfriend pointed to in an attempt at resolving the boy’s protein question. Needless to say he still didn’t understand. Ali then tried explaining it a little further by breaking down the first few sentences of the Wikipedia entry in the simplest possible terms. It didn’t help at all. The boy was more confused than before. 
 
Much like the general population, Ali is not much of a science wiz so she moved on and told him if he finished is dinner he would get to enjoy his favorite dessert. This immediately recalibrated the boy’s neurons solely on the purpose of eating Jell-O, specifically orange flavored Jell-O because if there’s one thing he knows , it’s that orange Jell-O is the best. He also assumed that if he didn’t receive orange Jell-O that very instant the world would most likely come to an end. Unfortunately for her, there was only cherry flavored Jell-o left and a mini melt down ensued. Like I said, he is sometimes inquisitive and ALWAYS demanding. He gave up proteins for something he knows. If you were to ask him about a protein today, he most certainly would not even remember that this conversation took place.
 
That story came to my mind the other night when my uncle, a wine distributor by trade, asked me what I was studying in graduate school. Before I could finish the words protein engineering, he cut me off and jokingly asked, “Is it something that no one understands?” In a way, that was a loaded question. I could have said “yes” and been absolutely right. Holistically speaking, no one truly understands everything about proteins. Do we really know all the intricacies of protein folding models, side-chain interactions, thermodynamics, enzyme kinetics, rheological properties, etc, etc, ad infinitum? I also could have said “no” to my uncle. I could have rattled off a string of the brightest minds and listed their contributions to the field thus explaining that what I am studying is well understood by many people. Would it have helped if I said, “yes, nobody understands what I am doing?”. Probably not; yet on the flip side, it probably wouldn’t have helped either if I said, “No way, you would NOT believe how much is known about what I am studying!” I bet his first question would have been “So Joe, what exactly is a protein then?” I would have had an answer for him but I am not sure it would have helped. My uncle was jet lagged so I spared him this time.
 
There’s a common thread to these two stories. Studying protein engineering or any science for that matter has an enigmatic effect on people, be it a Jell-o obsessed 4 year old or a 60 year old wine connoisseur. Some people will ask the question, “What is a protein?” and either be satisfied with the answer or regret asking. Some people will just assume that they will never understand and not even try. I like to think I have taken the next step, more likely the next several hundred steps, to understanding the enigma that is science. You could say I asked what a protein was and proceeded to dive a few fathoms deeper into finding my answer. I’m still plunging into that abyss and I’m loving every minute of it. Sometimes it helps to be inquisitive even when the questions get tougher. So I may not know the difference between a Shiraz and a Syrah, or the difference between orange and red Jell-O but I do know science. I’ll stick to what I know and leave Jell-O and wine to the experts. 

Joe Frezzo

As Henry J. Tillman once said, “If you’re not part of the solution, you’re part of the precipitate.” 

Growing up, I cannot say that I was born with a passion for the chemical and biological sciences. Under the influences of my family, my father played a key role in introducing the world of science to me as a young child. He studied biochemistry in Shanghai, China and proceeded to obtained his M.D. at a later point in his life. Afterwards, he moved to America to start a family in hopes of living the “American dream.” After coming home from elementary school, he would give me basic lessons on the chemical properties of the body and try to make me understand how intricate we as humans are. Little did I know that those afternoons I spent with my father in the park and the mini-science lessons he gave me would plant a seed of curiosity in me. 

I remember in the 6th grade, he took me to the New York Hall of Science and I found myself completely mesmerized by the exhibit. By then, that seed was slowly growing in me.

That following year I took my interest even further and decided to challenge myself at my school’s science fair. With a little bit of creativity and hard work, I designed a pretty effective solar powered cooker and I made it as a finalist and won second place! I remembered that sweet taste of accomplishment and I was hungry for more. At the time, I could hardly believe my success and this was all the motivation and encouragement I needed to stimulate my interest in the sciences even more. 

I never thought I’d become a biology major but little did I know, I find myself currently pursuing a Bachelor’s of Science in Biomolecular Science at Polytechnic Institute of NYU. The way I see it, understanding the chemical and biological sciences can enable the manipulation of  the essential factors of life. One of the greatest inspirations to pursue my passion for science came as a result of attending this school. I thought I knew all there was to know when I left high school, but I was clearly wrong. I’m constantly surrounded by young scientists passionate about what they study and they inspire me to propel forward in my passions as well. The possibilities are truly endless and it’s only a matter of fulfilling your potential!

Jennifer Sun

Programming Proteins with New Building Blocks

Proteins are essential components that allow us to exist.  If you look down at your hands, the surface or skin is comprised of various proteins.  And if you were able to look through your skin, there are a myriad of proteins that are working to sustain you.  

Now consider a situation in which deep inside your body, there is a tiny abnormal cell that contains an abnormal protein beginning to wreak havoc. Perhaps there would be a way to reprogram the protein so it can do the job it should do.

Well that is what we sought to do!   The most traditional way to reengineer proteins is to change their composition by making mutations, which will alter the amino acid building block sequence. However, we decided to take it up a notch and integrate new artificial building blocks into proteins.

To help you understand this, imagine that the building blocks of proteins are like opaque, colored Legos.  The protein would be represented as a pattern of those colored Legos in a certain shape or pattern.  If an artificial building block was represented as a transparent Lego, then the shaped protein would simply be comprised of them.

Getting back to our protein bearing the artificial building blocks….we were able to engineer a protein that contained different fluorinated amino acids (artificial building block).  We chose to investigate the histone acetyltransferase (HAT) protein.  The normal function of HAT is to activate genes by reacting with histones, which are the scaffolds that DNA are bound to in our cells.  In general our DNA are condensed with the histones, resulting in the X-like chromosome structure that you may be familiar with.  HATs can also activate other target proteins, which can lead to other biological events.  Thus, it can initiate parallel reactions in us. 

By playing molecular subterfuge on the cell machinery, we were able to coax cells to produce HATs with fluorinated amino acids. To our surprise one of the artificial HAT proteins changed its ability to specifically activate targets.  In our paper published in Molecular Biosystems (http://pubs.rsc.org/en/content/articlelanding/2011/mb/c1mb05148b), we observed that a particular fluorinated HAT showed exclusive activation of histone, knocking out its ability to activate another known protein target.  

Now why is this so exciting? Let us return to the initial situation where we need to reprogram a protein.  Our studies provide a route to address this and we are able to achieve this through a simple swap of opaque to transparent building blocks.   

Jin Montclare

In Aaron Dignan’s recent book, Game Frame, he provides a concise summary of the past century’s efforts to understand the motivating force behind games.  I couldn’t help musing, “are scientists motivated by game constructs as well?”  Are published manuscripts just another way to keep score (with impact factor providing a convenient score multiplier)?  Do games provide as much motivation for our work as it does a stock boy, day trader, or professional chef?  And finally, should games motivate as much as they do, particularly in the life sciences arena, in which others’ mortality could be at stake?

At first, the subtle commonalities of games and the scientific method may come as a shock to the non-gaming scientist.  For anyone who has ever played games requiring even a modicum of strategy, trial-and-error is the method of choice for learning.  Even with the limited control set of jumping and walking/running, as in the Super Mario Bros. game series, jumping across a chasm still requires the exploration of permutations of strategy: should I get a running start and then jump?; when should I release the jump button;? should I start off from a higher vantage point?  All of these are strategic decisions that, whether us gamers are cognizant of it or not, are informed by our experience from playing.  It should read: “educated-trial-and-error.”  They are, in effect, educated guesses – or hypotheses – as to how to solve a particular problem.

The notion of experience points (XP or EXP for you gaming readers) translates quite well into the life of graduate student/post-doc in the modern lab.  One can even imagine each stint in a different lab is the equivalent of conducting quests or “dungeoning” amongst members of a different guild; analogies pertaining to progression are evident.  However, do we as scientists view the practice of science in this light?  With menial jobs, employees typically overlay a gaming framework onto their simple tasks in order to motivate themselves to perform.  Do scientists do the same?  Enter gaming metrics.

Game metrics for grunts and newbies in science are simple: peer-reviewed journal publications with impact factor acting as optional multipliers, and (maybe) poster/oral presentations.  The idea of a PhD/Master’s thesis almost pales in comparison to something as quantifiable as the former.  Journal articles and presentations are inherently outlets to share one’s achievements with other fellow scientists.  Indeed, games in the proper sense are just catching up to this idea of social gaming frameworks.  Is it any wonder then that graduate students often find it laborious to push out a thesis?  In perhaps response to this, Magued Iskander, professor of civil engineering at Polytechnic Institute of NYU, will often ask, “how many pages have you written for your thesis?”  Some may argue that page number does not necessarily translate to quality of research, yet this is not the point of asking for such metrics.  It provides a quantifiable metric to track progress and motivate us to the next milestone, level, or chapter. 

On the professional level – as a PI of a research group – the game metrics are a little different.  This level of performance even comes with its own title, akin to the gold standards of “easy,” “medium,” and “hard.”  It’s called “tenure track.”  Publications still play a role, but additional associated metrics begin to affect gameplay.  Impact factor of published manuscript’s publications begin to behave as multipliers, with Nature and Science being the industry’s super uppercuts, and low impact factor journals being probing jabs.  Publication rate, on the yearly basis, is examined.  (Just recently our lab carried out a 6-hit combo in 2011.)  Acceleration of publishing, the 2nd derivative, is also looked at by some of the more scrutinizing eyes.  The list could go on; as such, it’s not exactly caring solely about the science as a PI.  It’s about very quantifiable metrics that, in effect, turn the profession of science into a game in some respect.  Sure enough, there are plenty of PI’s offices with a white board that looks similar to a battlefield strategy. 

On the other hand, staunch academicians may claim, “This is no game!” and I wouldn’t blame them.  What happens in games, no matter how many measures we take to prevent it?  Answer: people cheat.  The motivating force of winning and the even stronger force for not losing/failing, and the perceptions of these ideas facilitated by gaming frameworks, can certainly drive people to cheat.  This can (and has) happen(ed) in several ways in scientific research: fudging data, withholding significant data sets, disobeying sensitive protocols, and even fabricating entire experiments and results.  This is particularly dangerous when it comes to clinical trials, prior to handing it off to the FDA.  But even with basic science research, public spending dollars are at stake.  Are we comfortable, as a society, donating money to efforts that may be tainted by our industry’s equivalent of Game Genie? (footnote: an invention in the late 1980’s allowing gamers to exploit the code of Nintendo games to offer such perks as unlimited lives, health and ammo)

I hope this post has at least provided a bit of a different perspective of scientific research to both the lay spectators, and the grunts and generals in the trenches.  The questions I’ve raised were as much a result of an introspective exercise as it was an attempt to redraw the canvas of the practice of science in America.  Hopefully, I’ve communicated how games can be a motivating force in the realm of scientific research, however subconscious it may present itself.  In addition, we must also be aware of the malicious effects of gaming constructs on our professional fields, science included.

The Network Blog

For the past six years, I have been creating and characterizing biomaterials. To be more specific, I work with materials made of proteins capable of assembling into unique structures. We have created proteins that possess two different segments: one which we call C that makes a molecular cylinder and another we name E that is structurally very different from the previous segment and possesses an ability to sense and respond to heat, pH and salts.

We pieced E and C in two different orientations, creating EC and CE and studied them. The most interesting thing that we discovered from our work is that EC block polymer has different functions from CE block polymer.

How is it possible that EC would not behave the same as CE as they are both comprised of the same segments you ask? Well, we think it may be due to the fact that the amino acids have different charities. Chirality means that the amino acids are not superimposable on their mirror image. Thus, orientation on each segment contains a specific chirality makes a difference.

After our discoveries, we decided to utilize the properties of our block polymers to make new hybrid biocomposites. We wanted to see how our soft biomaterials would behave in the presence of a rigid material (cellulose). Much to our surprise, we observed differences in their functionalities when they are mixed with cellulose. We were able to tune the function of our materials with the addition of other rigid materials found in nature.

So, here is a very brief description of what I’ve been doing my PhD. I am working in the lab because I love science, and I have always wanted to use my knowledge to improve the world. I am making my contribution to the world.

Jennifer Haghpanah