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Topic: Polarity and Water Solubility of L-Alanin  (Read 350 times)

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cibaa

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Polarity and Water Solubility of L-Alanin
« on: November 25, 2024, 06:00:06 AM »
I‘m a bit confused on why L-Alanin is an non polar aminoacid but still soluble in water. Why is that? Does it have something to do with it‘s IEP?
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Offline Babcock_Hall

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Re: Polarity and Water Solubility of L-Alanin
« Reply #1 on: November 25, 2024, 08:08:51 AM »
I am not familiar with the abbreviation IEP.  Do you mean its isoelectric point, pI?  The side chains of some amino acids are nonpolar (valine is an example), but one must consider the entire amino acid in assessing polarity and solubility.
« Last Edit: November 25, 2024, 10:40:34 AM by Babcock_Hall »
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Offline Babcock_Hall

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Re: Polarity and Water Solubility of L-Alanin
« Reply #2 on: November 25, 2024, 01:01:32 PM »
I recommend drawing out the major tautomer of alanine.  It is certainly true that pH and pI (isoelectric point) affect the solubility of an amino acid, but I am not sure that this is closely related to your question.
« Last Edit: November 25, 2024, 02:06:06 PM by Babcock_Hall »
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