The protein is rich in acidic residues: 30-36% are either aspartic or glutamic acid.

PaTx1 is 83.3% identical to PATx2, differing only by two acidic residues.

Glycosylated serines are often followed by a glycine and have neighboring acidic residues.

The frequency of amino acids among the sequences was skewed significantly toward acidic residues (Table 1).

Aspartate-97, Aspartate-188, and Glutamate-326 make up the active site, which is a triad of acidic residues.

The image below shows a theoretical system consisting of three acidic residues.

Investigation showed that the glue left an acidic residue after curing, that in turn damaged the structure of the timber.

In plant plastocyanins, acidic residues are located on either side of the highly conserved tyrosine-83.

A single acidic residue in the n 3 position is not sufficient for CKI phosphorylation.

The domain contains many conserved acidic residues that could participate in metal binding and might form the phosphodiesterase active site.