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Basic amino acid

Basic amino acid

An amino acid containing a second basic group (usually an amino group); e.g., lysine, arginine, ornithine.

Synonym: dibasic amino acid.


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Re: Any SOLID arguments against evolution?

... believe referring to dipole-dipole bonds. Most amino acids are made of hydrogen bonds, with one end being acid H+ and the other basic OH-. This why they bond through dehydration synthesis--the ...

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by AFJ
Mon Jun 01, 2009 1:23 am
 
Forum: Evolution
Topic: Any SOLID arguments against evolution?
Replies: 106
Views: 16671

Re: HELP ME PLEASEEE - DNA Sequences

mRNA is a messenger RNA (Ribous Nucleic Acid) molecule, it defers from DNA by being much ... recipe. The ingredients of theses ribosomes are amino acids, there are 20 amino acids in all life. ... of proteins that make up life. There is a basic dictionary for the amino acid and dna sequence. ...

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by bekbaev
Wed May 13, 2009 2:54 am
 
Forum: Human Biology
Topic: HELP ME PLEASEEE - DNA Sequences
Replies: 1
Views: 999

can anyone help me answer these biology questions?

... golgi? - what would happen if you changed an amino acid in a protein? - how many pairs of e- can C share? - ... characteristics? - be able to determine what is more basic (OH-) or acidic (H+) - what regulates chemical rxns ...

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by tungvinchenzo
Thu Feb 05, 2009 8:55 am
 
Forum: General Discussion
Topic: can anyone help me answer these biology questions?
Replies: 2
Views: 744

Re: Finding the net charge of amino acid

... others are forming amide bonds with the next amino acid in the polypeptide and don't substantially contribute ... positive charges (the free amino terminus and the 2 basic amino acid side chains) and one negative charge (the ...

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by blcr11
Thu Oct 02, 2008 9:42 am
 
Forum: Molecular Biology
Topic: Finding the net charge of amino acid
Replies: 15
Views: 6649

Re: Finding the net charge of amino acid

... that? The pKa's for alanine are 2.3 for the acid group and 9.7 for the amino group. The formal pI of alanine is 6.0. The pI is ... instantly lose the proton. Only when you get above the basic pKa (9.2) will all of the alanines carry a net charge ...

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by blcr11
Tue Sep 30, 2008 12:07 pm
 
Forum: Molecular Biology
Topic: Finding the net charge of amino acid
Replies: 15
Views: 6649
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