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Dictionary » P » Protein domain

Protein domain

Definition

noun

(1) An autonomously folding functional unit of a protein.

(2) A part of protein that can fold, function and exist independently of the rest of the protein chain or structure.


Supplement

Protein domains vary in length. Some can consist of about 25 amino acids while others up to 500 amino acids in length. Zinc fingers are an example of small protein domains that can coordinate one or more zinc ions to help stabilize their folds.


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Retained Intron through Translation

What happens to a protein sequence when an intron is not spliced out in the maturation of an mRNA strand? ... the intron length (in nucleotides) were a multiple of 3 you would just get an extra domain in the normal protein. But this is apparently an incomplete answer. I've looked ...

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by cgh24
Tue May 05, 2009 9:55 pm
 
Forum: Genetics
Topic: Retained Intron through Translation
Replies: 1
Views: 445

Cancer Phenotype Help needed.

... you guys could help me a little! thanks! ---------------------- A novel protein, X has been discovered and preliminary experiments indicate that ... i a. To show that Protein X interacts with p53 b. To identify the domain of p53 that is important for this interaction? ii Subsequently, it ...

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by keef
Fri Sep 26, 2008 7:32 am
 
Forum: Cell Biology
Topic: Cancer Phenotype Help needed.
Replies: 2
Views: 543

role of stress related genes

... listed only 2 genes: ERD4 and Ascorbate peroxidase. First is a membrane protein that conjugates with HSPs and second detoxifies peroxides. The other two are not genes: ACT domain is small molecule binding domain and zinc finger was explained by Mr. Mystery.

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by Cat
Wed Apr 16, 2008 11:52 pm
 
Forum: Molecular Biology
Topic: role of stress related genes
Replies: 2
Views: 455

Are any of these "alive": prions, viroids, virions?

... LIFE from my tutor: A living organism on Earth is an entity containing protein and/or nucleic acid, that imposes its form and function on another ... over whether mimivirus is a distinct form of life, comparable on a domain scale to Eukarya, Archaea and Bacteria. Nevertheless, mimivirus does ...

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by Tyred
Wed Mar 19, 2008 11:36 pm
 
Forum: Microbiology
Topic: Are any of these "alive": prions, viroids, virions?
Replies: 10
Views: 2682

Multiple choice questions

... hoping someone could give me an answear. 1. Hydrophobic interaction in protein is giving important stabilization contributions a) to proteins secundary- ... groups on the cytoplasmatic side d) have a hydrophobic transmembrane domain e) constitue about 10% of the membrane proteins Small molecules ...

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by Luna
Sun Feb 24, 2008 9:48 pm
 
Forum: Molecular Biology
Topic: Multiple choice questions
Replies: 2
Views: 1696
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