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molecular structures

Category archives for molecular structures

When computers first entered the mainstream, it was common to hear them getting blamed for everything. Did you miss a bank statement? that darned computer! Miss a phone call? – again the computer! The latest issue of Science had a new twist on this old story. Now, instead of a researcher failing to take responsibility…

What’s the difference between a synthetic drug and an antibiotic? Sometimes there’s no difference at all. Let’s take a look at chloramphenicol and couple of pencillins.

and what is the volume of the sea? This sounds a bit like the beginning of a poem but it’s really the answer to the question we posed last week on a Digital Biology Friday.

Modified from the original post. Playing around with molecular structures is one of the more entertaining activities that you can do with digital biology. I’ve become totally entranced with molecular structures, both because they’re a fascinating art form and because every structure has its own story. I learned this because I ended up writing 69…

Today, we’re going to look for rainbows in double-stranded DNA and see what they can tell us about DNA structure.

Why do I love Cn3D? Let me count the ways. What does Cn3D do? (Hint: say “Cn3D” out loud). Seriously, Cn3D is a program that draws lovely pictures of molecular structures by using experimental data from techniques like X-ray crystallography and nuclear magnetic resonance spectroscopy. Surprisingly (to some), and in contrast to many bioinformatics programs,…

How can you win a nerd contest if you don’t dress the part? Last year, I started a shop at CafePress to help distribute lab materials and fund my adventures in science education. Part of the fun has been making molecular merchandise to help show everyone that molecular models are beautiful, in their own special…

Did HIV become resistant to Atazanavir because of a genetic change? Was that genetic change inherited? Did HIV evolve? Can we explain why genetic changes at specific sites might help HIV escape the effects of the drug? Let’s find out.

When can a really bad virus be used to do something good? When we can use it to learn. The human immunodeficiency virus, cause of AIDS, scourge of countries, and recent focus of ScienceBlogs; like humans, evolves. As one of my fellow ScienceBloggers noted, few biological systems demonstrate evolution as clearly as HIV. In this…

One of the commenters on a previous post, pointed out that proteases have pretty diverse structures, even though they also share a common function. What else could I do? I had to take a look. I found structures for chymotrypsin (from a cow) and subtilisin (from a soil bacteria, Bacillus lentus) and used Cn3D to…