sp|B7LNG0|CRL_ESCF3 Sigma factor-binding protein Crl OS=Escherichia fergusonii (strain ATCC 35469 / DSM 13698 / CCUG 18766 / IAM 14443 / JCM 21226 / LMG 7866 / NBRC 102419 / NCTC 12128 / CDC 0568-73) OX=585054 GN=crl PE=3 SV=1