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We report isolation and characterization of Campylobacter jejuni 81-176 lgtF and galT lipooligosaccharide (LOS) core mutants. It has been suggested that the lgtF gene of C. jejuni encodes a two-domain glucosyltransferase that is responsible for the transfer of a beta-1,4-glucose residue on heptosyltransferase I (Hep I) and for the transfer of a(More)
Several published functions associated with the CHK1 histidine kinase of Candida albicans resemble those of the MAPK Cek1p and its cognate receptor Sho1p (SSU81). To explore this further, we have compared mutants lacking the proteins mentioned above and have constructed a double sho1/chk1Delta null mutant to determine relationships among these proteins. We(More)
The macrodomains are a multifunctional protein family that function as receptors and enzymes acting on poly(ADP-ribose), ADP-ribosylated proteins, and other metabolites of nicotinamide adenine dinucleotide (NAD+). Several new functions for macrodomains, such as nucleic acid binding and protein-protein interaction, have recently been identified in this(More)
The coronavirus nonstructural protein 3 (nsp3) is a multifunctional protein that comprises multiple structural domains. This protein assists viral polyprotein cleavage, host immune interference, and may play other roles in genome replication or transcription. Here, we report the solution NMR structure of a protein from the "SARS-unique region" of the bat(More)
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