All Questions
Tagged with amino-acids chirality
6 questions
4
votes
1
answer
381
views
What would be the fate of protein made from D-amino acids after ingestion by humans?
There are some natural peptides made of D-amino acids, rather than the L-amino acids normally found in nature. It is now possible to chemically synthesize artificial proteins made of D-amino acids.
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- 204
0
votes
3
answers
174
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Do different chiral centers on ligands cause different confirmational changes and effects in their target proteins?
Say pathogenic bacteriaA makes toxinA, which had D-amino acids instead of L-amino aids, does this difference in chirality cause a different conformational change in the receptor or enzyme, thus ...
0
votes
1
answer
135
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Amino acids in human cancer cells expose dextrorotation?
I would like to know if the amino acids in the human cancer cells are dextrorotatory or levorotatory.
I mean the majority of them.
They expose levorotation just like the amino acids in the normal ...
- 95
12
votes
3
answers
930
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Is there any evolutionary advantage of selection of L-amino acid over D-amino acid?
After listening to a scientific talk, I had this question that why in the natural selection process, are the L-amino acids selected over the D- form. However, we still we produce D-amino acids; ...
- 123
16
votes
3
answers
4k
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What happens to dextrorotatory amino acids in humans?
As indicated by this question, most of the amino acids in the human body have the L-chirality. As enzymes also have handedness, what happens to the D-amino acids that end up within the human body? Are ...
- 6,695
45
votes
6
answers
2k
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Why are amino acids in biology homochiral?
Why are nearly all amino acids in organisms left-handed (exception is glycine which has no isomer) when abiotic samples typical have an even mix of left- and right-handed molecules?
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