4.1.2.21 2-dehydro-3-deoxy-6-phosphogalactonate aldolase culture condition:galactose-grown cell - 4974, 5091 4.1.2.21 2-dehydro-3-deoxy-6-phosphogalactonate aldolase culture condition:galactose-grown cell present only in cells grown on galactose or galactose derivatives 5084 5.3.1.9 glucose-6-phosphate isomerase culture condition:galactose-grown cell - 715319