Fig. 3

Inter-subunit interactions in the Tch. tepidum form-IAq RuBisCO. (a) A structural unit composed of an RbcL dimer and four associated RbcS subunits. (b) Close contacts (< 3.5 Å, hereafter) between RbcL-1 and RbcS-1. (c,d) Close contacts between RbcL-1 and RbcS-2. (e) Close contacts between RbcS-1 and RbcS-2. The conserved residues present in Tch. tepidum form-IAq RuBisCO and all three plant form-I RuBisCOs (Supplementary Fig. 7) are marked with asterisks.