controls cell polarity and cell migration in C. elegans; encodes a homolog of human MTA1, part of an ATP-dependent complex with nucleosome remodelling and histone deacetylation activities that may promote tumor metastasis; in conjunction with its paralog egr-1, egl-27 is required for proper organization in all parts of the embryo, and for the embryonic expression of hlh-8; amino acid sequence in first source; GenBank AF096618