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Sandra Porter I am a digital biologist, teacher, and entrepreneur. My passion is developing instructional materials for 21st century biology (Digital World Biology).

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« Hello Kitty! or Don't Eat Me, I Study Genetics! | Main | Desperately seeking suggestions: what works best with on-line teaching? »

Digital Biology Friday: Who were those molecules anyway?

Category: Digital Biology FridaysEvolutionGenetics & Molecular Biologymolecular structures
Posted on: December 28, 2007 10:12 AM, by Sandra Porter

If you look below the fold, you can see two molecules locked in a tight embrace. These molecules or their closely related cousins can be found in any cell because their ability to evolve is slowed by their need to interact with each other in the right way.

In an earlier post, I asked:

Who are they?

One partner is a small bit of 16S ribosomal RNA, about 56 nucleotides to be precise. The other partner is S15, one the proteins in the ribosome.

If we could look inside the bacteria that made these, we would see lots of other proteins binding to these two partners within a molecular machine. Ribosomes and ribosomal RNA are essential for making new proteins and all living things must have them. They do vary a bit in structure between three kingdoms of life; procaryotes, archeabacteria, and eucaryotes; but they can still be recognized by their sequences.

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Comments

1

Dear Dr Sandra Porter

Greetings

Could you please contact me at the earliest to my emailID ??

I need your help.. Please quote my ref: DNA : 3.20b in your reply.

Thank you

With regards

Sandhya

SANDHYA :: Associate Team Leader - Permissions Team ::

:: ELSEVIER ::

:: International Tech Park, Ascendas :: Crest - 12th Floor:: Unit - 2,3 & 4 :: Taramani Road :: Taramani ::

:: Chennai 600 113 :: India:: Tel : +91 44 4299 4519 :: Fax: +91 44 4299 4701 ::

:: E-mail : sa.balasubramanian@elsevier.com :: Website : www.elsevier.com

" Every noble work seems at first impossible, never give up at the first try, keep going till you reach what you aim "

 Kindly think about the ENVIRONMENT before you print this.

Posted by: SANDHYA BALASUBRAMANIAN | November 18, 2009 2:26 AM

2

Dear Dr Sandra Porter

Greetings

I would like to inform you that we are going to use the figure appearing in this site in our forth coming Elsevier Publication, DNA and Biotechnology – The Awesome Skill.

We would credit the source as
http://scienceblogs.com/digitalbio/2007/12/digital_biology_friday_who_wer.php
as reference in our publication.

Thank you

With regards

Sandhya

SANDHYA :: Associate Team Leader - Permissions Team ::

:: ELSEVIER ::

:: International Tech Park, Ascendas :: Crest - 12th Floor:: Unit - 2,3 & 4 :: Taramani Road :: Taramani ::

:: Chennai 600 113 :: India:: Tel : +91 44 4299 4519 :: Fax: +91 44 4299 4701 ::

:: E-mail : sa.balasubramanian@elsevier.com :: Website : www.elsevier.com

" Every noble work seems at first impossible, never give up at the first try, keep going till you reach what you aim "

 Kindly think about the ENVIRONMENT before you print this.

Posted by: SANDHYA BALASUBRAMANIAN | March 16, 2010 7:46 AM

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