TgESTzyf12d12.y1 TgME49 B7 Tachyzoite cDNA Library 1 Toxoplasma gondii cDNA clone TgESTzyf12d12.y1 5' similar to SW:IDHP_SCHPO O14254 PROBABLE ISOCITRATE DEHYDROGENASE [NADP], MITOCHONDRIAL PRECURSOR, mRNA sequence