MICROTUBULES Structure: - globulaire - tubuline alpha et beta. - association avec GTP - plus grand diamètre (25nm) — Polymérisation: Les conditions: - tubuline beta lié à du GTP Lieu - centriole Les étapes. 1. Formation d’hétérodimères avec tubuline alpha + beta 2. Formation protoF 3. Association de plusieurs protoF —> cylindre creux

David Congiu

BIOLOGIE CELULAIRE

Biologia

biologie

cellule

David Congiu

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Généralités: - Cytosquelette s’étend dans la cellule de la membrane plasmique jusqu'au niveau de la face interne du noyau. - Composé de trois structures protéiques: microfilaments d’actine, filaments intermédiaires et microtubules.

David Congiu

MICROFILAMENT D'ACTINE Structure: - globulaire (actine G) - sillon chargé négativement ==> lien avec ATP - plus petit diamètre (5-8nm)

David Congiu

Email:lenoxakf@gmail com56514 90do5z.af1874lsor

FILAMENT INTERMÉDIAIRE Structure: - filamenteux ATTENTION, les monomères sont variables selon les cellules.

David Congiu

My sister is older than me and would often go off, so I grew up alone in a sense. I had to amuse myself and developed a wonderful fantasy world and quite happily lived in it. I think, in adulthood, that helped me. I love pottering on my own.

Amanda Donohoe

The ideal college is Mark Hopkins on one end of a log and a student on the other.

James A. Garfield

I've really enjoyed working together with Apple to help launch their new streaming service. It is really cool to see Apple getting involved.

Kygo

The hardest thing for an artist to do is to let go. I don't wanna be the dude - if you come to my house, there are no pictures circa '86 in my house.

Heavy D

You can try to be catchy without being slick, poppy without being pop, and you can be uplifting without being pompous. Because we're sometimes playing quieter stuff, it's hard to sound like we're trying to change things, but we wanted to be a reaction against soulless rubbish.

Chris Martin

I always used to love couture because it was more theatrical than the runways. The runways always felt more like part of the machine.

Lily Cole

Those who cannot remember the past are condemned to repeat it.

George Santayana

If you come at the Bible as if it's a document of encyclopedic information, you've pretty much killed any kind of life change in a seeker and unbeliever.

Erwin McManus

Israel can't make peace without the clear support of the United States.

Alan Dershowitz

Thou shalt not make a machine in the likeness of a human mind.

Frank Herbert

Amidst all the clutter, beyond all the obstacles, aside from all the static, are the goals set. Put your head down, do the best job possible, let the flak pass, and work towards those goals.

Donald Rumsfeld

Contempt is the weapon of the weak and a defense against ones own despised and unwanted feelings.

Alice Miller

I see a wiser person than when I was younger: having babies, and passing 30, were the turning points. What women in their 40s - I am 39 - lack in gorgeousness, they make up for in wisdom. I love ageing, despite the drawbacks - thinner, drier skin.

Thandie Newton

Einstein got most of the things right about black holes. I'm not an expert, I must admit.

Brian May

To me, throwback means I'm a smart player. I know how to play the game. I'm very skilled. I do a lot of things that other people don't do.

Kevin Love

Common wisdom dictates that the vice president should provide balance to the ticket by representing a different part of the country, another set of experiences, or a basketful of electoral votes.

Madeleine M. Kunin

When men I have dated over the years whined about, 'Oh, you make no time for me' - see ya! I just dumped them. I don't need that pressure in my life.

Rachael Ray

It's a real primal thing, watching someone get hurt. It's funny and accessible.

Johnny Knoxville

There is no greater agony than bearing an untold story inside you.

Maya Angelou

My pamphlet did not set the Torrens on fire.

Catherine Helen Spence

This is how I started: My mom was crazy for antique shops and junk shops, and my sister and I would play this game where, if we were driving with my parents and saw a junk shop or an antique shop, we'd scream at the top of our lungs. My poor father would have heart failure and screech to a halt, and we'd leap out and go and explore.

Hamish Bowles

I don't know if you'll see me jumping out of planes anytime soon.

Jason Biggs

I don't want, under any circumstances, to see in 'Haaretz' a picture of a woman with a baby in her arms crying while policemen deport her.

Eli Yishai

Don't throw pearls to swine

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