Dictionary » P » Peptides



Any member of a class of compounds of low molecular weight which yield two or more amino acids on hydrolysis. Formed by loss of water from the nh2 and cooh groups of adjacent amino acids, they are known as di-, tri-, tetra- (etc.) peptides, depending on the number of amino acids in the molecule. Peptides form the constituent parts of proteins.

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protein extraction from fat breast tissue

... tumor and corresponding normal breast tissue. My problem is the following : normal bresat tissue is really fatty and the lipids interfere with my peptides quantification after trypsin digestion. I use the micro BCA from Pierce. The problem is that it seems to overestimate the amount of peptides ...

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by Vero36
Sat May 04, 2013 1:18 pm
Forum: Cell Biology
Topic: protein extraction from fat breast tissue
Replies: 1
Views: 1748

looking for a difficult gene

how much related are your related species? Are those antibodies against specific peptides or whole proteins? I would suggest either partial purification of the protein if you're able to detect it in any way or gDNA/cDNA library and degenerated probe.

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by JackBean
Mon Dec 10, 2012 6:13 pm
Forum: Genetics
Topic: looking for a difficult gene
Replies: 1
Views: 1038

How are memories created?

... encoded as electron charges in the cells. Then through a pathway it reaches the cortex and become permanent long term memories in the form of peptides.

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by david23
Fri Jun 29, 2012 9:14 pm
Forum: Physiology
Topic: How are memories created?
Replies: 3
Views: 3694

Question about phage library

... Its about this part, and more specific the part in bold. "Technical description of phage display The starting point is usually a library of peptides, proteins or antibodies, which can be obtained commercially or constructed in house. The construction of a phage display library is accomplished ...

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by poloke
Sat Jun 02, 2012 2:06 pm
Forum: Microbiology
Topic: Question about phage library
Replies: 3
Views: 2671

I need information about the name of this enzyme

... of what the question is. Right now you appear to be asking what enzyme converts a dipeptide (a chain of 2 amino acids - unless you mean 2 longer peptides associated in some way like s-s bonds) to a secretOry or secreted peptide (first means that the peptide is helping secretion to happen, second, ...

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by canalon
Sat Apr 21, 2012 2:53 pm
Forum: Human Biology
Topic: I need information about the name of this enzyme
Replies: 4
Views: 1822
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