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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Strynadka, N. C. Paetzel, M. |
| Description | Country affiliation: Canada Author Affiliation: Paetzel M ( Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, Canada.) |
| Abstract | Escherichia coli signal peptidase (SPase) and E. coli UmuD protease are members of an evolutionary clan of serine proteases that apparently utilize a serine-lysine catalytic dyad mechanism. Recently, the crystallographic structure of a SPase inhibitor complex was solved elucidating the catalytic residues and the substrate binding subsites. Here we show a detailed comparison of the E. coli SPase structure to the native E. coli UmuD' structure. The comparison reveals that despite a very low sequence identity these functionally diverse enzymes share the same protein fold within their catalytic core and allows by analogy for the assignment of the cleavage-site orientation and substrate binding subsites in the UmuD(D') protease. The structural alignment of SPase and UmuD' predicts important mechanistic and structural similarities and differences within these newly characterized families of serine proteases. |
| ISSN | 09618368 |
| e-ISSN | 1469896X |
| Journal | Protein Science |
| Issue Number | 11 |
| Volume Number | 8 |
| Language | English |
| Publisher | Wiley-Blackwell (on behalf of The Protein Society) |
| Publisher Date | 1999-11-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Lysine Membrane Proteins Serine Endopeptidases Chemistry Serine Amino Acid Sequence Binding Sites Escherichia Coli Enzymology Escherichia Coli Proteins Models, Molecular Molecular Sequence Data Protein Structure, Secondary Sequence Alignment Sequence Homology, Amino Acid Metabolism Research Support, Non-u.s. Gov't Discipline Biochemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Molecular Biology Biochemistry |
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