Structure of TTHA1623, a novel metallo-beta-lactamase superfamily protein from Thermus thermophilus HB8Yamamura, A., Okada, A., Kameda, Y., Ohtsuka, J., Nakagawa, N., Ebihara, A., Nagata, K., Tanokura, M.
(2009) Acta Crystallogr Sect F Struct Biol Cryst Commun 65: 455-459
- PubMed: 19407375
- DOI: https://doi.org/10.1107/S174430910901361X
- Primary Citation of Related Structures:
- PubMed Abstract:
TTHA1623 is a metallo-beta-lactamase superfamily protein from the extremely thermophilic bacterium Thermus thermophilus HB8. Homologues of TTHA1623 exist in a wide range of bacteria and archaea and one eukaryote, Giardia lamblia, but their function remains unknown. To analyze the structural properties of TTHA1623, the crystal structures of its iron-bound and zinc-bound forms have been determined to 2.8 and 2.2 A resolution, respectively. TTHA1623 possesses an alphabetabetaalpha-fold similar to that of other metallo-beta-lactamase superfamily proteins with glyoxalase II-type metal coordination. However, TTHA1623 exhibits a putative substrate-binding pocket with a unique shape.
Department of Applied Biological Chemistry, University of Tokyo, Yayoi, Bunkyo-ku, Japan.