Protein structures of BnTIC22, BnTIC40, BnTIC32, BnTIC55, and BnTIC62. Sequence conservations among TIC homologs of land plants (Pisum sativum, Arabidopsis thaliana, Oryza sativa, and Physcomitrella patens) and green algae (Chlamydomonas reinhardtii, Chlorella variabilis, Micromonas pusilla, Ostreococcus tauri, O. lucimarinus, and/or Volvox carteri) are shown as logo plots generating by WebLogo v. 2.8.2. B. natans TIC sequences are shown above the logo plots, and conserved amino acids are indicated by asterisks.