00:01
At ph equal to 7, which is the amino acid is basically a zyterionic form, which means that all amino acids, they show positively charged amino group, positively charged amino group and negatively charged is the carboxylic group.
00:31
Group.
00:32
So, they cancel each other.
00:35
This cancel positive and negative cancels out each other.
00:39
But there are certain amino acids which contain additional amino and carboxylic acid group group such as aspartic acid, aspartic acid and glutamic acid and basic amino acids are lysine, arginine and histidine.
01:32
So, basically lysine, arginine, and histidine, they contain the charge of plus 1 at ph 7.
01:45
So, they contain the charge of plus 1.
01:49
These all basic amino acids...