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How many aminos acids are there?

Updated: 12/24/2022
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11y ago

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There are 21 amino acids found in the human body used to synthesize proteins, one of which can not be created directly by the human body. This is called Selenocysteine, and is found in eukaryotes.

There is a 22nd amino acide, Pyrrolysine, which is used by some methanogenic archaea.

There are many others, but these 22 are the only ones essential to life.

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6y ago
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11y ago

There are 21 amino acids found in the human body used to synthesize proteins, one of which can not be created directly by the human body. This is called Selenocysteine, and is found in eukaryotes.

There is a 22nd amino acide, Pyrrolysine, which is used by some methanogenic archaea.

There are many others, but these 22 are the only ones essential to life.

Read more: How_many_amino_acids_are_there

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11y ago

There are 20 amino acids

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