Isaac Asimov Quotes

The basic structure of proteins is quite simple: they are formed by hooking together in a chain discrete subunits called amino acids.

There are over 7,000 different types of proteins in typical eukaryotic cells; the total number depends on the cell class and function.

A final proof of our ideas can only be obtained by detailed studies on the alterations produced in the amino acid sequence of a protein by mutations of the type discussed here.

As can be seen even by this limited number of examples proteins carry out amazingly diverse functions.

In many biological structures proteins are simply components of larger molecular machines.

The study of the amino acid sequence around the disulphide bonds of the immunoglobulins was my own short-cut to the understanding of antibody diversity.

The structure of many cellular macromolecules has been revealed at the atomic level using x-ray crystallography.

In 1970, I had begun work on the basic pancreatic trypsin inhibitor which has later become the model compound for the development of protein NMR, molecular dynamics, and experimental folding studies in other laboratories.

The blood pigment haemoglobin is a compound which can be split by diverse methods into its constituents, pigment and protein.

DNA is a code of four letters; proteins are made up of amino acids which come in 20 forms. So the ribosome is a very clever machine that reads one language and operates in another.

That the primary effect of gene mutation may be as simple as the substitution of a single amino acid by another and may lead to profound secondary changes in protein structure and properties has recently been strongly indicated by the work of Ingram on hemoglobin.

Genes are effectively one-dimensional. If you write down the sequence of A, C, G and T, that's kind of what you need to know about that gene. But proteins are three-dimensional. They have to be because we are three-dimensional, and we're made of those proteins. Otherwise we'd all sort of be linear, unimaginably weird creatures.

When I started engineering proteins I didn't know how hard it would be.

If you hang in there long enough, you will eventually reach your goal.

I do not want to know what you will hope for. I want to know what you will work for. I do not want your sympathy for the needs of humanity. I want your muscle. As the wagon driver said when they came to a long, hard hill: ‘Them that’s going on with us, get out and push. Them that ain’t, get out of the way’.

A funny person is funny only for so long, but a wit can sit down and go on being spellbinding forever.

But no matter how big the effort to push a propaganda line might be, climate change is bigger. This, undoubtedly and regrettably, is the biggest immediate long-term environmental challenge we face. A failure to concretely come to some policy outcome on climate change has not only a negative environmental impact but also social and economic consequences for us.

And eternity is a long time. So if you have to spend it with someone I could see wanting to spend it with someone impossible...but interesting.

Making bad decisions and choosing the wrong partner can ruin your life for a long time, perhaps forever.

If you want to win forever, you've got to ALWAYS COMPETE.

Moving. Someone said this to me a long time ago, it's bhuddist saying, I think: 'There is no wasted effort'.

But he had been in love once, that he knew. Once and only once, and a long time ago. And it had changed him forever. Perfect love did that to a person and this had been perfect.

It takes long practice, yes. You have to work. Did you think you could snap your fingers, and have it as a gift? What is worth having is worth working for.

Life is not a mixture of matter and energy but energy in matter, bound in such a way that dissociation is impossible so long as the living process continues.

I can see the Beatles sticking together forever, really. We've been together a long time.