Scientists Develop Forensic Method to Identify Humans Using Hair Proteins

http://www.sci-news.com/biology/forensic-method-humans-hair-proteins-04183.html

Sep 12, 2016 by News Staff / Source

A Lawrence Livermore National Laboratory-led interdisciplinary research team has developed the first-ever biological identification method that exploits the information encoded in proteins of human hair.

A colorized scanning electron micrograph of human hair. Image credit: Scanning Electron Microscopy Laboratory, University of Alabama at Birmingham.
A colorized scanning electron micrograph of human hair. Image credit: Scanning Electron Microscopy Laboratory, University of Alabama at Birmingham.

Human identification from biological material is largely dependent on the ability to characterize genetic polymorphisms in DNA.

However, environmental and chemical processes can degrade DNA, limiting its usefulness over time.

“Nuclear DNA is the gold standard for human identification, but it is quite fragile,” said team member Dr. Brad Hart, a chemist with Lawrence Livermore National Laboratory.

“When the DNA molecule degrades from light, heat exposure or other environmental conditions, it becomes useless for identification.”

In contrast, protein is chemically more stable than DNA, can persist for longer periods and can be found in different tissue types, including hair, shed skin cells, bones, and teeth.

The team, led by Dr. Glendon Parker, a biochemist with Lawrence Livermore National Laboratory’s Forensic Science Center, investigated whether the protein found in human hair could offer another tool for identifying individuals in forensic or archaeology scenarios.

The scientists examined male and female hair samples for 66 European-Americans, five African Americans, five Kenyans and six skeletal remains from the 1750s and 1850s.

They have found a total of 185 hair protein markers to date, which they estimate would be sufficient to provide a unique pattern for an individual that could distinguish that person among a population of one million.

They believe that the number of individual protein markers that can be used to differentiate people could go as high as 1,000.

They believe that the number of individual protein markers that can be used to differentiate people could go as high as 1,000.

“Although people do not inherit proteins, they do inherit the DNA that produces their proteins,” explained team member Dr. Deon Anex, also from Lawrence Livermore National Laboratory.

“As a result, there is a link between the protein markers that we find and a person’s DNA. There are two reasons why this is particularly important: the DNA is unique to each individual and it is inherited from a person’s parents.”

The new identification technique using protein could offer another tool to law enforcement authorities for crime scene investigations and to archaeologists.

“We are in a very similar place with protein-based identification to where DNA profiling was during the early days of its development,” Dr. Hart said.

“This method will be a game-changer for forensics, and while we’ve made a lot of progress toward proving it, there are steps to go before this new technique will be able to reach its full potential.”

This work is described in a paper published in the journal PLoS ONE.

_____

Parker G.J. et al. 2016. Demonstration of Protein-Based Human Identification Using the Hair Shaft Proteome. PLoS ONE 11 (9): e0160653; doi: 10.1371/journal.pone.0160653

Read more at Sci-News.com

21 thoughts on “Scientists Develop Forensic Method to Identify Humans Using Hair Proteins

  1. bape hoodie says:

    I have to convey my admiration for your generosity for men and women who require guidance on this particular subject matter. Your special dedication to getting the solution throughout has been unbelievably advantageous and has usually permitted some individuals much like me to realize their objectives. This helpful guideline indicates a great deal a person like me and extremely more to my office colleagues. Thanks a lot; from everyone of us.

  2. air max says:

    I precisely needed to thank you very much once again. I’m not certain what I would have made to happen in the absence of the type of creative ideas revealed by you directly on such topic. This was a real hard setting in my position, nevertheless witnessing a new professional approach you treated that made me to leap with contentment. I will be thankful for this guidance and as well , believe you are aware of an amazing job you are always providing training other individuals through your web blog. More than likely you haven’t encountered any of us.

  3. Aw, this was a really nice post. In concept I would like to put in writing like this additionally ?taking time and precise effort to make an excellent article?but what can I say?I procrastinate alot and under no circumstances seem to get something done.

  4. Needed to write you that bit of remark to finally say thanks once again over the fantastic suggestions you’ve provided on this website. This has been really remarkably open-handed with you to convey publicly just what most of us could have made available as an electronic book to make some dough for themselves, chiefly considering the fact that you might well have tried it if you decided. The guidelines likewise worked as a fantastic way to be sure that the rest have similar zeal just like my own to realize great deal more in regard to this problem. I think there are many more enjoyable sessions ahead for individuals who read carefully your blog.

  5. I’m just writing to let you know of the nice experience my girl found viewing your web page. She realized lots of pieces, which include what it’s like to possess a great giving heart to let most people really easily thoroughly grasp various extremely tough things. You undoubtedly surpassed people’s expectations. Thanks for showing the warm and helpful, trustworthy, revealing and also unique tips about your topic to Julie.

  6. bape hoodie says:

    Thanks a lot for providing individuals with an extraordinarily breathtaking chance to read from this website. It’s usually so pleasant and packed with a great time for me and my office peers to visit your website more than 3 times in one week to read the latest things you will have. And of course, I am actually satisfied concerning the gorgeous methods you give. Some 2 points in this article are in fact the most impressive we have all ever had.

  7. I truly wanted to send a quick note to appreciate you for all of the remarkable ideas you are showing on this website. My considerable internet search has now been recognized with good strategies to go over with my friends and family. I would tell you that many of us site visitors are extremely lucky to exist in a really good community with many brilliant individuals with valuable tips. I feel rather grateful to have discovered the website and look forward to some more fabulous minutes reading here. Thanks a lot again for all the details.

  8. ultra boost says:

    I must express my thanks to you for rescuing me from this type of issue. Because of checking throughout the online world and finding thoughts which were not beneficial, I was thinking my life was done. Living without the presence of strategies to the difficulties you have fixed through this short post is a critical case, as well as ones that could have adversely damaged my entire career if I hadn’t discovered your website. Your personal knowledge and kindness in controlling the whole lot was tremendous. I’m not sure what I would’ve done if I hadn’t encountered such a subject like this. I can at this point look ahead to my future. Thanks for your time so much for the expert and results-oriented help. I won’t hesitate to recommend the sites to any person who desires guidelines about this situation.

  9. curry 5 says:

    Thank you for all your valuable work on this web site. Kim really loves making time for research and it is obvious why. Most people notice all concerning the dynamic ways you make important techniques by means of this web site and therefore recommend response from visitors on this idea plus our favorite princess is without question discovering a whole lot. Enjoy the remaining portion of the year. You are doing a brilliant job.

  10. My husband and i have been really cheerful that John could conclude his preliminary research using the ideas he got using your blog. It is now and again perplexing just to possibly be offering things which usually the rest might have been trying to sell. And now we take into account we have got the blog owner to give thanks to because of that. Most of the explanations you have made, the easy site menu, the friendships your site make it easier to create – it’s everything exceptional, and it’s aiding our son in addition to us imagine that this article is awesome, and that is truly vital. Thank you for the whole lot!

  11. yeezy shoes says:

    I have to show some appreciation to this writer for rescuing me from such a trouble. Right after looking out throughout the online world and obtaining principles which are not productive, I believed my life was well over. Living minus the answers to the issues you’ve resolved all through your good guide is a serious case, and the ones which might have badly affected my career if I had not noticed your blog. Your primary ability and kindness in maneuvering every part was tremendous. I am not sure what I would have done if I hadn’t encountered such a point like this. I can also now relish my future. Thanks for your time so much for your professional and effective guide. I will not think twice to refer the blog to anybody who would like guidelines about this subject matter.

  12. fenty puma says:

    I together with my guys ended up reading through the excellent secrets found on your website and instantly I got a terrible suspicion I never thanked the web site owner for those strategies. All of the women had been as a result very interested to learn all of them and have now truly been loving them. Thanks for being indeed thoughtful and also for pick out these kinds of ideal subject matter most people are really needing to be aware of. My very own honest regret for not saying thanks to you earlier.

  13. I needed to send you this little bit of note to give thanks the moment again for your precious views you have documented in this case. It is simply particularly generous of you to grant easily exactly what many individuals would have advertised as an electronic book in order to make some dough for their own end, primarily since you could have tried it if you ever wanted. The principles additionally served like the good way to comprehend someone else have similar keenness really like mine to know lots more in respect of this problem. I believe there are several more pleasurable instances up front for people who scan through your website.

  14. yeezy says:

    My spouse and i have been quite satisfied Peter could round up his reports using the precious recommendations he obtained in your web pages. It is now and again perplexing to simply always be giving away strategies that many the others could have been trying to sell. So we fully understand we now have the writer to give thanks to for this. The main illustrations you’ve made, the straightforward blog menu, the friendships your site help promote – it’s everything wonderful, and it’s letting our son and our family imagine that that article is awesome, which is exceedingly indispensable. Thank you for all!

  15. I and also my buddies have already been analyzing the nice solutions on your web page and all of the sudden I got a terrible feeling I had not thanked the blog owner for those secrets. Most of the people came very interested to read them and have in effect very much been using those things. We appreciate you indeed being quite considerate and also for utilizing variety of incredible resources most people are really needing to know about. My very own honest apologies for not saying thanks to you sooner.

  16. I’m also commenting to make you know of the brilliant experience my princess enjoyed viewing your blog. She figured out such a lot of issues, including how it is like to have an ideal giving style to make a number of people quite simply know precisely various multifaceted matters. You undoubtedly surpassed readers’ desires. I appreciate you for rendering such helpful, trustworthy, revealing and in addition unique guidance on your topic to Jane.

  17. I truly wanted to post a simple note to be able to thank you for all of the superb hints you are giving at this site. My long internet look up has at the end been compensated with professional details to share with my partners. I ‘d repeat that we visitors are extremely endowed to dwell in a perfect website with very many marvellous individuals with very beneficial guidelines. I feel quite fortunate to have encountered the website page and look forward to so many more fun minutes reading here. Thank you once again for a lot of things.

  18. Thank you for your entire effort on this website. Kim take interest in participating in investigation and it is easy to understand why. My spouse and i hear all regarding the lively medium you convey useful tactics on this blog and as well as strongly encourage response from other people on the theme so our daughter is discovering a lot. Enjoy the rest of the year. Your doing a fabulous job.

  19. My spouse and i ended up being very delighted when Michael managed to carry out his reports from your precious recommendations he obtained through your site. It’s not at all simplistic to simply continually be offering tips and tricks that other people might have been selling. And we all understand we need the writer to be grateful to for this. All the explanations you’ve made, the straightforward blog menu, the friendships you assist to engender – it’s got mostly spectacular, and it’s facilitating our son and us believe that the content is fun, and that is pretty pressing. Thank you for all the pieces!

  20. nmd says:

    My wife and i ended up being now peaceful when Louis managed to round up his analysis out of the precious recommendations he acquired from your very own weblog. It is now and again perplexing just to choose to be giving freely ideas which some others could have been making money from. Therefore we remember we need the website owner to appreciate for this. The entire explanations you have made, the straightforward web site menu, the friendships you can help instill – it is everything fantastic, and it’s really making our son and us consider that the issue is cool, and that is highly serious. Thank you for all!

  21. nike zoom says:

    I would like to show my appreciation to you just for rescuing me from such a matter. As a result of researching through the world-wide-web and finding methods that were not beneficial, I thought my life was well over. Existing devoid of the approaches to the problems you have fixed through this short post is a critical case, and ones that would have in a negative way affected my career if I had not discovered your web site. Your good talents and kindness in controlling a lot of stuff was precious. I don’t know what I would’ve done if I hadn’t come across such a thing like this. I am able to at this point relish my future. Thanks so much for this expert and result oriented help. I will not be reluctant to propose the website to anybody who will need guidelines about this matter.

Leave a Reply

Your email address will not be published. Required fields are marked *