D-ribulose 5-phosphate + formaldehyde = D-arabino-hex-3-ulose 6-phosphate
d-ribulose 5-phosphate + formaldehyde = d-arabino-hex-3-ulose 6-phosphate
"D-arabino-3-hexulose 6-phosphate formaldehyde-lyase"
"d-arabino-3-hexulose 6-phosphate formaldehyde-lyase"