First Author | Sinha S | Year | 1999 |
Journal | Proc Natl Acad Sci U S A | Volume | 96 |
Issue | 23 | Pages | 13074-9 |
PubMed ID | 10557275 | Mgi Jnum | J:58510 |
Mgi Id | MGI:1347740 | Doi | 10.1073/pnas.96.23.13074 |
Citation | Sinha S, et al. (1999) Crystal structure of Bacillus subtilis YabJ, a purine regulatory protein and member of the highly conserved YjgF family. Proc Natl Acad Sci U S A 96(23):13074-9 |
abstractText | The yabJ gene in Bacillus subtilis is required for adenine-mediated repression of purine biosynthetic genes in vivo and codes for an acid-soluble, 14-kDa protein. The molecular mechanism of YabJ is unknown. YabJ is a member of a large, widely distributed family of proteins of unknown biochemical function. The 1.7-A crystal structure of YabJ reveals a trimeric organization with extensive buried hydrophobic surface and an internal water-filled cavity. The most important finding in the structure is a deep, narrow cleft between subunits lined with nine side chains that are invariant among the 25 most similar homologs. This conserved site is proposed to be a binding or catalytic site for a ligand or substrate that is common to YabJ and other members of the YER057c/YjgF/UK114 family of proteins. |