Glutamine Synthetase can be composed of 8, 10, or 12 identical subunits separated into two face-to-face rings.

Ec-MscL consists of five identical subunits, each 136 amino acids long.

Each molecule is composed of three identical subunits.

The enzyme exists as a tetramer of identical subunits, each containing a possible type 2 copper-binding site.

A homotetramer is a protein complex made up of four identical subunits which are associated but not covalently bound.

The protein, called hemagglutinin, is a triple-stranded molecule with identical subunits.

The enzyme is a tetramer of apparently identical subunits.

In the open state, four identical subunits contribute a single P-loop region, which forms a selectivity filter.

This particular protein is an octamer made up of 8 identical subunits.

The lac repressor is a tetramer of identical subunits.