>tr|A0A0E2L9Z7|A0A0E2L9Z7_ECOU3 Protein FixB OS=Escherichia coli GN=fixB MNTFSQVWVFSDTPSRLPELMNGAQALANQINTFVLNDADGTQAIQLGANHVWKLSGKPD ERMIEDYAGVMADTIRQHGADGLVLLPNTRRGKLLAAKLGYRLNAAVSNDASAVSVQDGK ATVKHMVYGGLAIGEERIATPYAVLTISSGTFDAAQPDASRTGETHTVEWQAPAVAITRT ATQARQSNSVDLDKARLVVSVGRGIGSKENIALAEQLCKAIGAELACSRPVAENEKWMEH ERYVGISNLMLKPELYLAVGISGQIQHMVGANASQTIFAINKDKNAPIFQYADYGIVGDA VKILPALTVALAR