Figure 1.
Homology modeling of the C-terminal domain of CLC-1. (A) Homology model of the CBS domain of CLC-1 shown in ribbon presentation. The two segments of CLC-1 sequence corresponding to CLC-5 are colored in red and yellow, whereas the segment that is missing in CLC-5 is illustrated with a dotted black line. ATP is shown in stick presentation (in CPK color). Key amino acids examined in this study are colored in yellow (V613), orange (V634), blue (V860), and purple (E865). (B) Sequence alignment of CLC-0, CLC-1, CLC-5, and AtCLC-a for the region encompassing the four residues shown in A.