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This domain is found in the virulence regulatory factor CvfB from Streptococcus pneumoniae and in similar proteins predominantly found in Firmicutes. CvfB is composed of three consecutive S1 RNA-binding domains and a winged-helix (WH) domain (Pfam:PF ...
This domain is found in the virulence regulatory factor CvfB from Streptococcus pneumoniae and in similar proteins predominantly found in Firmicutes. CvfB is composed of three consecutive S1 RNA-binding domains and a winged-helix (WH) domain (Pfam:PF17783). This entry represents the second S! domain, an RNA-binding module that adopts the typical S1 fold that consists of a five-stranded, antiparallel beta-sheet forming a beta-barrel [1].
The S1 domain was originally identified as a repeat motif in the ribosomal S1 protein. It was later identified in a wide range of proteins. The S1 domain has an OB-fold structure. The S1 domain is involved in nucleic acid binding.
CvfB is a conserved regulatory protein important for the virulence of Staphylococcus aureus [1]. This entry represents the first of three S1-like OB-fold domains.