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ABSTRACT: GSP13 encoded by gene yugI is a sigma(B)-dependent general stress protein in Bacillus subtilis, which can be induced by heat shock, salt stress, ethanol stress, glucose starvation, oxidative stress and cold shock. Here we report the solution structure of GSP13 and it is the first structure of S1 domain containing protein in Bacillus subtilis. The structure of GSP13 mainly consists of a typical S1 domain along with a C-terminal 50-residue flexible tail, different from the other known S1 domain containing proteins. Comparison with other S1 domain structures reveals that GSP13 has a conserved RNA binding surface, and it may function similarly to cold shock proteins in response to cold stress.
Journal of Biomolecular NMR 02/2009; 43(4):255-9. DOI:10.1007/s10858-009-9298-y · 3.14 Impact Factor