Protein
High-affinity heme uptake system protein IsdE
Organism
Staphylococcus aureus (strain bovine RF122 / ET3-1)
Function
Involved in heme (porphyrin) scavenging. Binds Fe(2+) and Fe(3+) heme but the largest fraction is Fe(2+) heme. Functions as a high-affinity heme binding protein and probably has a role in relaying heme-iron from cell wall-anchored isd proteins receptors to the probable permease IsdF (By similarity).
Similarity
Belongs to the bacterial solute-binding protein 8 family.
Sequence
MRIIKYLTILVISVVILTSCQSSSSQESTKSGEFRIVPTTVALTMTLDKLDLPIVGKPTSYKTLPNRYKDVPEIGQPMEPNVEAVKKLKPTHVLSVSTIKDEMQPFYKQLNMKGYFYDFDSLKGMQKSITQLGDQFNRKAQAKELNDHLNSVKQKIENKAVKQKKHPKVLILMGVPGSYLVATDKSYIGDLVKIAGGENVIKVKDRQYISSNTENLLNINPDIILRLPHGMPEEVKKMFQKEFKQNDIWKHFKAVKNNHVYDLEEVPFGITANVDADKAMTQLYDLFYKDKK