XAA definitions

Xaa

Symbol for unspecified amino acid. ... (05 Mar 2000) ...
Found on http://www.encyclo.co.uk/local/20973

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Xaa

Type: Symbol Definitions: 1. Symbol for unspecified amino acid (also expressed as X).
Found on http://www.medilexicon.com/medicaldictionary.php?t=100097

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