Table 1.
Summary of proteins associated with biogenic calcite
| Organism | Protein description | Protein name | Solubility | Ref. |
| poly(glycine) and Asp/Glu rich regions, Cys | MSI31 | insoluble | 21 | |
| Pinctada fucata (pearl oyster) | Gly rich | MSI7 | insoluble | 22 |
| Pro/Ile/Tyr/Arg regions, Gly/Trp rich region, Asp rich region | Prismalin-14 | insoluble | 23 | |
| Crassostrea nippona (Iwagaki oyster) | acidic, highly phosphorylated, Asp/Glu/Cys rich | MPP1 | soluble | 24 |
| Crassostrea virginica (American oyster) | highly phosphorylated, Asp/Ser/Gly rich | None | soluble | 25 |
| Adamussium colbecki (American scallop) | highly phosphorylated, Asp/Ser/Gly rich | None | soluble | 26 |
| Patinopecten yessoensis (Yesso scallop) | Ser/Gly/Asp rich, basic terminal sequence | MSP1 | insoluble | 27 |
| Pinna nobilis (Mediterranean fan mussel) | Ala/Asp/Thr/Pro rich, Cys rich terminal sequence | Calprismin | soluble | 28 |
| Asp rich | Caspartin | soluble | 28 | |
| Procambarus clarkia (crayfish) | Glu/Ala rich | GAMP | insoluble | 29 |
| Gallus gallus (chicken) | cysteic acid rich | Ovotransferrin | soluble | 30 |
| Anser anser (goose) | Ala/Glu/Ser/Gly/Trp rich | Ansocalcin | soluble | 31 |
Most calcite-extracted proteins are rich in carboxylate groups due to aspartic acid (Asp) and glutamic acid (Glu). Many are also phosphorylated or contain thiol groups in cysteine (Cys) residues. GAMP, gastrolith matrix protein.