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Select amino acid(s) by residue number

Type the sequence number of the single amino acid you wish to select or the range of amino acids (for example 121-123), then press Enter/Return. The display will zoom in on the amino acid(s) you have selected and they will be shown in ball-and stick representation using the color scheme shown below. Element Color Scheme (CPK)

Carbon

Nitrogen

Oxygen

Sulfur

Select amino acid(s) by residue number

Note that hydrogen atoms are not shown.