>sp|C4ZT97|CRL_ECOBW Sigma factor-binding protein Crl OS=Escherichia coli GN=crl MTLPSGHPKSRLIKKFTALGPYIREGKCKDNRFFFDCLAVCVNVKPAPEVREFWGWWMEL EAQESRFTYSYQFGLFDKAGDWKSVPVKDTEVVERLEHTLREFHEKLRELLTTLNLKLEP ADDFRDEPVKLTA