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Chaperonins

Chaperonins

a class of sequence-related molecular chaperones found in bacteria, mitochondria, and plastids. Chaperonins are abundant constitutive proteins that increase in amount after stresses such as heat shock, bacterial infection of macrophages, and an increase in the cellular content of unfolded proteins. Bacterial chaperonins are major immunogens in human bacterial infections because of their accumulation during the stress of infection. Two members of this class of chaperones are chaperonin 10 and chaperonin 60.


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Re: Re:

... statement, that is very wrong. Creative errors are common. Just see simple mutations giving rise to antibiotic resistance. Gene duplications, chaperonins and other mechanism allow the accumulation of mutations without effects, until an event disturb the balance. And generally bad mutations ...

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by canalon
Tue Sep 23, 2008 4:37 pm
 
Forum: Evolution
Topic: Problems with Evolution !
Replies: 33
Views: 5447

HELP Failing Biology

There's also chaperonins etc other folding factors

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by mith
Sun Dec 02, 2007 8:19 pm
 
Forum: Genetics
Topic: HELP Failing Biology
Replies: 5
Views: 986

Theoretical biologists developing a protein folding theory?

... folding of protein happens in 3 ways, (1) it folds by itself, (2) helped by proteins named chaperones, and (3) helped by a large dome-like protein chaperonins. for the no.1, it can fold to a proper structure sometimes because of series of actions happened after translation, called post-translational ...

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by victor
Tue Jul 17, 2007 4:14 am
 
Forum: General Discussion
Topic: Theoretical biologists developing a protein folding theory?
Replies: 5
Views: 766

Polypeptides

... polypeptides are often modified in Golgi by attaching oligosaccharides. When polypeptides emerge from polyribosomes, they often are caught by chaperonins which help polypeptides fold into their tertiary structure. These folded polypeptides can unite one with other to form a multi-polypeptide ...

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by druid
Tue Oct 31, 2006 9:32 pm
 
Forum: Cell Biology
Topic: Polypeptides
Replies: 3
Views: 609

the puzzle of chaperones!

... chaperones as a 'guide' to help them fold.. I do realise that most proteins also can fold themselves without the help of chaperones (Hsp 70) or chaperonins (Hsp 60).. but the question is how do chaperones or chaperonins themselves manage to fold in the correct order? i do realise that maybe ...

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by k3nz3n
Tue May 02, 2006 5:09 pm
 
Forum: Molecular Biology
Topic: the puzzle of chaperones!
Replies: 5
Views: 1084
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