Data from GenBank (1997)
Clones isolated from developing maize endosperm.
| Form 1 | Form 2 | Form 3 | Form 4 | |
| ADP-glc pyrophosphorylases | Small subunit (Bt2) | Large Subunit (Sh2) | Small subunit (Agp1) | Large subunit (Agp2) |
| Bound starch synthases | GBSSI (Wx) | - | - | - |
| Branching enzymes | BEI | BEIIa | BEIIb (Ae) | - |
| Starch synthases | SSI | SSIIa (Su2?) | SSIIb | SSIII (Dull) |
| Amylogenin | Amylogenin | - | - | - |
| Debranching enzymes | Isoamylase (Su1) | ?? Pullulanase (??) | - | - |
| Disproportionating enzymes | ?? | - | - | - |
Ae = Amylose extender locus
Bt2 = Brittle 2 locus
Dull = Dull locus
Sh2 = Shrunken 2 locus
Su1 = Sugary 1 locus
Su2 = Sugary 2 locus
Wx = Waxy locus