genomics
sporte | October 30, 2017Sometime in the next day or two, Scienceblogs will shut down. We've enjoyed the opportunity to blog here for the past 10+ years. Not to worry, @digitalbio and @finchtalk will continue blogging, but more so from their own site at Digital World Biology. The Scienceblogs posts have been reposted at Digital World Biology's scienceblog archive, and new posts will be at Discovering Biology in a Digital World, now at Digital World Biology.
Enjoy
@digitalbio, @finchtalk
sporte | October 12, 2017@synbiobeta concluded it’s #sbbsf17 annual meeting on synthetic biology Oct 5, 2017. The progress companies are making in harnessing biology as a platform for manufacturing and problem solving is world changing.
Locations of Synbio Companies
What is Synthetic Biology?
Synthetic biology is a term that is used to describe the convergence of biotechnology and engineering. The dramatic cost decreases in our ability to read and write DNA (sequence and synthesize), combined with increasing capabilities in automation and informatics has catalyzed a new sub-industry within biotechnology. Synthetic…
finchtalk | September 29, 2017The biotechnology (biotech) industry is incredibly diverse. Recently, I wrote about the size of the biotech industry, which is, of course, related to how biotechnology is defined. As a strict definition, biotechnology is the use of biology to turn raw materials into useful products. However, the act of developing a biotech product requires many enabling technologies, reagents, and services that form today's modern industry.
The term biotechnology was first coined in 1919 by Károly Ereky, a Hungarian agricultural engineer, who foresaw a time when biology could be used for turning raw material…
finchtalk | August 16, 2017A simple web search says biotech is really big. One estimate indicates that the industry will have $400 billion in sales in 2017 with growth to over $775 billion by 2024 [1]. Another report suggests there are over 77,000 employers [2]. That’s big, but is it real, and what you can do with this information?
Worldwide locations of biotechnology employers. Source Biotech-Careers.org
At Biotech-Careers.org we're interested in helping students and graduates of biotech programs at community and four-year colleges learn about the multitude of opportunities available in the biotech industry. To…
finchtalk | January 12, 2017It's time for the annual blog about the annual Nucleic Acids Research (NAR) database issue. This is the 24th database issue for NAR and the seventh blog for @finchtalk. Like most years I have no idea what I'm going to write about until I start reading the new issue. Something always inspires me.
This year's inspiration came from missing data.
In 2017, NAR lists 1662 databases or 23 fewer than last year.
As summarized in the database issue's introduction, Galperin, Fernández-Suarez, and Rigden tell us this year's issue has 152 papers. 54 of those describe new databases, 98 provide updates,…
sporte | September 18, 2016On Sept. 30th, I'm going to be co-presenting a Bio-Link webinar on Genome Engineering with CRISPR-Cas9 with Dr. Thomas Tubon from Madison College. If you're interested, Register here. Since my part will be to help our audience understand the basics of this system, I prepared a short tutorial with Molecule World . Enjoy!
A Quick CRISPR Tutorial
Go to the Digital World Biology CRISPR Structure Collection.
Download the second item in the list, 5F9R, by clicking the link in the Download structure column.
Identify the three components of the CRISPR - Cas system: The Cas9 protein, the guide…
finchtalk | April 13, 2016Computers, biological data (molecular sequences, structures, and other data), websites, and databases are integral to modern research. Innovations like precision, or personalized medicine, expect a certain level of patient participation, and our future food and environmental sustainability will require that society can access a multitude of computer-based resources. Thus, higher education has an important role in providing students with employable skills as well as the ability to use data to make important personal and societal decisions. Toward that goal it is worthwhile understanding how…
sporte | February 28, 2016Did you know small fragments of DNA are circulating in your blood stream?
These short pieces of DNA are left behind after cells self-destruct. This self-destruction, or apoptosis, is a normal process. In the case of fetal development, certain cells in our hands die, leaving behind individual fingers. Immune system cells leave traces of DNA behind after they’ve tackled invading microbes. DNA can also appear in the blood when people have cancer.
I had the good fortune, last Monday, to hear Matthew Snyder describe this cell-free DNA in a fascinating talk and learn why DNA in the blood can be a…
finchtalk | February 16, 2016Someone missed the memo. Over the past year, news and presentations by NIH leaders like Philip Bourne have communicated that the proliferation biologically focused databases is unsustainable. However, unlike last year, where the number of databases tracked by Nucleic Acids Research (NAR) dropped by three databases, 2015's net growth was 136.
Counting databases is hard
As summarized in the database issue's introduction, Rigden, Fernández-Suarez, and Galperin tell us this year's issue (the 23rd annual) has 178 papers. 62 papers describe new databases, 95 provide updates, and 17 are updates of…
sporte | December 31, 2015"By night all cats are gray" - Miguel Cervantes in Don Quixote
I've always liked Siamese cats. Students do, too. "Why Siamese cats wear masks" is always a favorite story in genetics class. So, when I opened my January copy of The Science Teacher, I was thrilled to see an article on Siamese cat colors and proteins AND molecular genetics (1).
In the article, the authors (Todd and Kenyon) provide some background information on the enzymatic activity of tyrosinase and compare it to the catechol oxidase that causes fruit to brown, especially apples. Tyrosinase catalyzes the first step of a…
sporte | September 8, 2015We've been fans of the Molecule of the Month series by David Goodsell, for many years. Not only is Dr. Goodsell a talented artist but he writes very clear descriptions of the ways molecules like proteins, RNA, and DNA work together and function inside a cell.
To learn about proteins and their activities, I like to go directly to the Molecule of the Month page, where I can find a list of articles organized by molecule type and name. Many of these articles can also be downloaded in a PDF format.
A really nice of his articles is that he includes PDB IDs for all the structures he discusses. The…
oracknows | September 8, 2015I am fortunate to have become a physician in a time of great scientific progress. Back when I was in college and medical school, the thought that we would one day be able to sequence the human genome (and now sequence hundreds of cancer genomes), to measure the expression of every gene in the genome simultaneously on a single "gene chip," and to assess the relative abundance of every RNA transcript, coding and noncoding (such as microRNAs) simultaneously through next generation sequencing (NGS) techniques was considered, if not science fiction, so far off in the future as to be unlikely to…
sporte | April 8, 2015National DNA Day has a fun challenge for teachers and classrooms using Pinterest. Your class can join a larger, national, effort to create a National DNA Day Pinterest board by making your own class Pinterest board on DNA, genetics, and genomics. Some possible topics are:
Things to do with DNA
DNA and health
DNA and the Arts
DNA in the News
We're really excited about the topic on DNA and the Arts!
Here's how you can make some lovely DNA Art images for your Pinterest board in Molecule World on an iPad or, if you don't have access to an iPad, you can use Cn3D.
1. Go to our DNA search at…
finchtalk | January 30, 2015Something interesting happened in 2014. The total number of databases that Nucleic Acids Research (NAR) tracks dropped by three databases!
What happened? Did people quit making databases? No. This year, the "dead" databases (links no longer valid) outnumber the new ones. To celebrate Digital World Biology's release of Molecule World I'll discuss some of the new structure databases below. But first, the numbers.
As summarized in the database issue's introduction, Galperin, Rigden, and Fernández-Suárez tell us this year's issue has 172 papers. 56 of those describe new databases, 98 provide…
oracknows | January 5, 2015
NOTE: There is a follow up to this post.
The holidays are over. Time to start dishing out fresh Insolence, Respectful and, as appropriate, not-so-Respectful for 2015.
I do, however, feel obligated to deal with one painfully inappropriate action by a major science journal left over from 2014. It happened in an issue that came out just before Christmas, and, with all the festivities, being on call last week, and having houseguests; so, unfortunately, I just didn't get around to addressing it, either here or on my not-so-super-secret other blog (where I might crosspost this later in the week).…
sporte | December 27, 2014Sometimes when you go digging through the databases, you find unexpected things.
When I was researching the previous posts on insulin structure and insulin evolution, I found something curious indeed.
Human insulin, colored by rainbow. Image from the Molecule World iPad app by Digital World Biology.
I wanted to find out how many different organisms made insulin, so I used a database at the NCBI called Blink. Blink is a database of protein blast search results. Using Blink can save you lots of time because it organizes blast results from all the organisms in the non-…
sporte | December 26, 2014On pinene and inhibiting enzymes.
People of a certain age may remember a series of really funny commercials featuring Euell Gibbons and his famous question about whether you've ever eaten a pine tree. "Some parts are edible" said Euell.
Perhaps some parts are, but other pine tree products aren't so nourishing. Crystallography365, aka @Crystal_in_city had a couple of fun blog posts about pinene, a chemical made by pine trees, that also inhibits cytochrome P450 2B6.
I was inspired by their posts and by my experience with Cytochrome P450 to go a little farther. We like to use cytochrome…
finchtalk | October 7, 2014Scale, proportion, and quantity belong to one of the cross cutting concepts in the next generation science standards (NGSS). According to Volume 2 of the NGSS, "in engineering, no structure could be conceived much less constructed without the engineer's precise sense of scale." The authors go on to note that scale and proportion are best understood using the scientific practice of working with models.
When scientists and engineers work with these concepts at a molecular scale, new kinds of technologies can be created to advance our understanding of the natural world. One example is DNA…
finchtalk | July 25, 2014Science and its interpretation is wonderful. Today I saw a post on Twitter from @LAbizar, referencing an @GEN, post that stated 8.2% of Human DNA is Functional with a link to a GEN article: "Surprise: Only 8.2% of Human DNA Is Functional." The GEN writeup cited a PLoS Genetics article, "8.2% of the Human Genome Is Constrained: Variation in Rates of Turnover across Functional Element Classes in the Human Lineage," released today.
How much of the human genome is functional?
In 2012, the ENCODE (Encyclopedia of DNA Elements) project published a landmark summary, "An integrated encyclopedia of…
finchtalk | July 3, 2014A few weeks back, we published a review about the development and role of the human reference genome. A key point of the reference genome is that it is not a single sequence. Instead it is an assembly of consensus sequences that are designed to deal with variation in the human population and uncertainty in the data. The reference is a map and like a geographical maps evolves though increased understanding over time.
From the Wiley On Line site:
Abstract
Genome maps, like geographical maps, need to be interpreted carefully. Although maps are essential to exploration and navigation they…