>tr|E1J137|E1J137_ECOLX Sigma factor-binding protein Crl OS=Escherichia coli MS 124-1 GN=crl MTLPSGHPKSRLIKKFTALGPYIREGKCEDNRFFFDCLAVCVNVKPAPEVREFWGWWMEL EAQESRFTYSYQFGLFDKAGDWKSVPVKDTEVVERLEHTLREFHEKLRELLTTLNLKLEP ADDFRDEPVKLTA