Involved in the down-regulation of lcrGVH transcription in the presence or absence of calcium and is necessary for lcrG protein expression in the absence of calcium. Plays an important role in the regulation of the low-calcium response (By similarity). lcrR Low calcium response locus protein R LCRR_YEREN 146 MMEDPLIPWLTEHGLVCHPHTLSGTPISLGSAFQLAGLKLAWRVEIEQRRVWIVLIQRVEQRRGLKNPFAALYMLANAARAVLGPDYYLYGNVDVLAGSSLSTQRLAHFYRRWTGAKELSTGWFSLKVSQVITLSNMKKRQNNGFA