Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange
7

Dr. Bailey wrote a short piece that hints at the reasons behind why she expected what she expected: Telomeres are the ends of chromosomes that protect them from damage and from “fraying” – much like the end of a shoestring. Telomeres are critical for maintaining chromosome and genome stability. However, telomeres naturally shorten as our cells divide, and ...


3

Disclaimer It is important to realize that it is not possible to answer questions of this sort (the evolution of translation) in anything other than a speculative manner. Please bear this in mind, especially if you find the speculation below persuasive. Summary It is suggested that the redundancy of termination codons is largely similar to that for ‘...


2

In the paper quoted in the question the term clearly related to phosphoamino acids, but did not have the meaning suggested in answer 1 of @S_Pr. The paper was from Nat Chem Biol. and entitled: “A Pan-specific Antibody for Direct Detection of Protein Histidine Phosphorylation” The idea is that the antibody is: ‘pan’ in that it will react with all ...


2

Summary The difference in the nature of codon–anticodon ambiguity seen between bacterial initiation and elongation lies not only in the position of the codon at which it occurs (5′ v 3′, respectively), but in the partial or absolute nature of the interactions (only some AUG and GUG etc. codons initiate and insert fMet, whereas all AUU and AUC codons will ...


1

Stem cells can be stored but that is an expensive alternative to generating them freshly. It has been shown that you can make stem cells from skin cells. Theoretically, it would be much less expensive to store a piece of epidermis from a recently deceased relative than to make fresh stem cells and store those. However, the research for generating stem ...


1

What does pan-specific antibody mean? The combining prefix pan- means "all" or "every". Antibodies are specific because they bind specifically to an epitope ('target') on a molecule. A pan-specific antibody is one that binds specifically to all desired targets, within a defined range. Here are three correct examples of how the word could be used, to help ...


1

Interpretation of the Question There are two questions here. The one about alternative start codons is factual and has been well answered by Louis Maddox. The other is an evolutionary question which I would recast as “Why was methionine selected as the initiating amino acid?” Like Louis Maddox I would have said that this was almost impossible to answer....


Only top voted, non community-wiki answers of a minimum length are eligible