Crystal Structures of Lsm3, Lsm4 and Lsm5/6/7 from Schizosaccharomyces pombe
Figure 1
Ring structures of SpLsm3, SpLsm4N and SpLsm5/6/7 within crystal lattices.
Structures are viewed from the helix faces of each ring structure. (A) The asymmetric unit of orthorhombic SpLsm3 crystal consists of 14 protein subunits, which are packed into two heptamers coaxially via helix face-helix face region. One SpLsm3 heptamer is shown. (B) The asymmetric unit of monoclinic SpLsm4N crystal contains 24 protein subunits, which are arranged as 8 copies of trimer. One SpLsm4N trimer is shown. (C) The asymmetric unit of tetragonal SpLsm5/6/7 crystal contains one copy of each subunit. Through symmetry operation, a closed hexamer ring structure is generated.