What Froze the Genetic Code?

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

What Froze the Genetic Code?

The frozen accident theory of the Genetic Code was a proposal by Francis Crick that attempted to explain the universal nature of the Genetic Code and the fact that it only contains information for twenty amino acids. Fifty years later, it is clear that variations to the universal Genetic Code exist in nature and that translation is not limited to twenty amino acids. However, given the astonishi...

متن کامل

Genetic Code: What Nature Missed

The genetic code encodes 20 amino acids in almost all living cells; the only known exceptions are a few organisms that use selenocysteine [1] or pirrolysine [2]. In order to acquire chemical properties not represented in this set, proteins must be modified post-translationally, be made non-ribosomally, or use co-factors. In a series of papers, Peter Schultz’s group has described how they carrie...

متن کامل

Expanding the genetic code.

Although chemists can synthesize virtually any small organic molecule, our ability to rationally manipulate the structures of proteins is quite limited, despite their involvement in virtually every life process. For most proteins, modifications are largely restricted to substitutions among the common 20 amino acids. Herein we describe recent advances that make it possible to add new building bl...

متن کامل

Reprogramming the genetic code.

When Maria Leptin called to say that I had been awarded the 2010 EMBO Gold Medal, I was delighted and surprised. The roll call of past winners is impressive, and I had been at the Laboratory of Molecular Biology (LMB) when Jan Löwe had received the award in 2007 for his elegant work on the bacterial cytoskeleton (Michie and Löwe, 2006). I also knew that several other LMB scientists, including B...

متن کامل

The genetic code.

After the double-helical structure of DNA was revealed in 1953, researchers had before them the chance to unlock an utterly compelling puzzle, one for the ages and fundamental to the processes of life: What code linked DNA sequences to each of the 20 amino acids that comprised proteins? Every biology textbook now lists which three RNA bases correspond to which amino acid, but in 1961, that was ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Life

سال: 2017

ISSN: 2075-1729

DOI: 10.3390/life7020014