bacterioferritin in the I422 space group, like 1JGC, has a trimer in the asymmetric unit, but the biological unit is 24-mer! Looking at it another way, considering a dimer is two monomers crosslinked by a heme, the asu contains 1.5 dimers and hence 1.5 hemes! eab
On 12/11/2014 07:27 AM, Hay Dvir wrote:
Dear all, We have a structure of a rather tightly packed homotrimer protein in the ASU with no apparent crystallographic or non-crystallographic rotational symmetry between monomers. Attempting to establish the biological assembly, we are very interested to hear about additional similar cases you might know of. Thanks in advance, Hay --------------------------- Hay DvirPh. D. HeadTechnion Center for Structural Biology TechnionHaifa 3200003, Israel Tel:+(972)-77-887-1901 Fax:+(972)-77-887-1935 e-mailhd...@technion.ac.il <mailto:hd...@technion.ac.il> Websitehttp://tcsb.technion.ac.il