Unspoken words for thought

Posts tagged ‘the’

Sex and the city

Have just finished the 6th season of sex and the city. What a brilliant series that was, just when my life is drama-less, this season have included some of the most interesting episodes of the series.

Can not help but wondering what our lives will be like in 15 years when we are 35 years old. Some people say that the pinnacle age for us is 21, but I think that 30 is going to be the most important age for both men an women alike. It is the age where we can measure how our lives are getting on for real. University feels just like another wait before entering into the real world, not that I’m complaining, because the life of student living in London is just fabulous. We are at the ‘wondering’ stage of our lives where nothing is certain. It’s true that nothing has to be certain in life, but it is especially true when you are at university. If you ask an particular student what they are studying and what they would like to do in the future, more than half will say that they’re not sure and the other half have their hopes high in not wasting their time learning and cramming all new concepts from their course by wanting to pursue an academic career.

Life is a juggle at university, or is it a juggle all the way till the end? Soon or not so soon, many of us will be juggling our work with friend with babies… It was a relief to see the Manhattan girls finally settling down with someone they love. Steve Jobs did a speech at Stanford university where he told people to find what they love and don’t settle. However, I hope to find what I love very soon in all aspects of my life, so that I will never let them go because I love them so much. It is true love. For example Charlotte becomes a Jew for her husband, and despite all his bad habits that she encountered when they finally moved in together after a disastrous wedding, they found ways to compromise and love each other just the way they are.

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Quorum sensing: Learning about lux operons of Vibrio fischeri!

So there is a molecular biology test coming up in 2 days and I’m on the last part of revision learning about how there are glowing squids and how fireflies glow! Could not resist but to  listen to the amazing song by Owl City 🙂

There are 2 lux operons. the first encodes luxR, a protein required to activate the second lux operon which is comprised of the genes lux I C D A B E G… the luxI gene encodes the enzyme VAI ( Vibrio fischeri autoinducer) sythase. VAI binds to the luxR protein. This complex then binds to the promoter of the second lux operon and assists RNA polymerase to bind.

The operon is then transcribed, producing more luxI, which in turn produces more VAI. This is a process called autoregulation. The operon is responsible fore producing a chemical that activates the operon. Complex yet clever! (Bearing in mind what I wrote in my last blog, I think that we can if we have not already taken this idea and incorporate it into some mechanical technology?!)

One of the proteins encoded by the second lux operon is luciferase. Luciferase then metabolises luciferin to produce a luminescent chemical- the came chemical that makes glow worms and fireflies glow :). –> The more VAI produced, the more luciferase produce.

Info courtesy of Professor…

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