Deletion of sequences encoding lgs amino acid residues 318-345 (the HD1 domain) and 508-550 (the HD2 domain).
lgs::pygoΔHD1.ΔHD2.T:Ivir\HA1 is able to rescue the phenotype of pygo130/pygo130 single mutants. lgs::pygoΔHD1.ΔHD2.T:Ivir\HA1 is unable to rescue the phenotype of lgs20F/lgs20F single mutants, or of lgs20F/lgs20F pygo130/pygo130 double mutants.