This is the C-terminal domain found at the ATPase subunit of the glucose ABC transporter from Sulfolobus solfataricus. Overall, the C-terminal domain (residues 243-353) contains only beta-strands, which form an elongated barrel-shaped structure composed of two parts. This entry represents the upper part which includes a three-stranded anti-parallel beta-sheets and two small anti-parallel beta-strands. The overall structure of this domain is very similar to that of the C-terminal domain of MalK from T. litoralis however, the function of the C-terminal domain in GlcV is not clear [1].

1: Crystal structures of the ATPase subunit of the glucose ABC transporter from Sulfolobus solfataricus: nucleotide-free and nucleotide-bound conformations. Verdon G, Albers SV, Dijkstra BW, Driessen AJ, Thunnissen AM; J Mol Biol. 2003;330:343-358. PMID:12823973