Free serine kinase that uses ATP to phosphorylate L-serine to yield O-phospho-L-serine and ADP. O-phospho-L-serine serves as a substrate for SbnA and is a precursor for staphyloferrin B biosynthesis (PubMed:29483190). Is also a DNA-binding regulatory protein that senses heme to control gene expression for siderophore biosynthesis. Binds to DNA within the sbnC coding region and is required for expression of genes in the sbn operon from sbnD onward (PubMed:26534960).

254 amino acids

MNHIHEHLKLVPVDKIDLHETFEPLRLEKTKSSIEADDFIRHPILVTAMQHGRYMVIDGVHRYTSLKALGCKKVPVQEIHETQYSISTWQHKVPFGVWWETLQQEHRLPWTTETRQEAPFITMCHGDTEQYLYTKDLGEAHFQVWEKVVASYSGCCSVERIAQGTYPCLSQQDVLMKYQPLSYKEIEAVVHKGETVPAGVTRFNISGRCLNLQVPLALLKQDDDVEQLRNWKQFLADKFANMRCYTEKVYLVEQ

29.6 kDa

(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)

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