 Lateral translation of the trimeric unit creates a flat 2-dimensional sheet that has features consistent with the molecular properties of hexagonal archaeal S-layers.The overall appearance of the S-layer resembles a honeycomb structure of hexagonal tiles with center to center spacing between the tiles of ~240 Å and a height of ~45 Å.Three different types of pores are present in the sheet with "Primary pores" situated on the six-fold symmetry axis and "Trimer pores" on the three-fold symmetry axis.