Table 2.

Proteins separated from organic matrices in coral skeletons by molecular weight.

Coral species	MW banding in kDa	Reference	Amino acid compositions	Protein gel chromatography
Synularia polydactyla (spicules)	109, 83, 70, 63, 41, 30, 22	Rehman et al. 2005 [49].	Sequencing of 70 kDa and 63 kDa proteins. Enriched acidic amino acids. 70: glutamate; 63: glycine.	Reproduced with permission from Wiley-VCH Verlag GmbH, 2005 [49].
Galaxea fascicularis	53, 45	Fukuda et al. 2003 [50].	Rich in cysteine (dicysteine repeat pattern) Aspartate and asparagine.	Reproduced with permission from Elsevier Inc., 2003 [50].
Balanophylli a europaea	IOM and SOM: 14.4, 13.9, 66	Goffredo et al. 2011 [51].	SOM: high acidic amino acids. IOM: high hydrophobic residues.	Reproduced with permission from PLoS One [51].
Stylophora Pistillata Pavona Cactus	55, 37, 47, 68, 50, 47, 37, 33 (from column 1: silver staining)	Puverel et al. 2005 [52].	SOM: Soluble organic matrix.	Reproduced with permission from Elsevier Inc., 2005 [52].
C. rubrum	(A): 6 bands at 81, 55, 47, 44, 12 and 10 kDa;	Deubreil et al. [53].		Reproduced with permission from Springer 2011 [53].
C. konojoi	(B): 6 bands at 53, 45, 43, 31, 11.5 and 10.5 kDa;
C. secundum	(C): 5 bands at 44, 42, 31, 11 and 10.5 kDa;
C. elatius	(D): 4 bands at 43, 33, 11.5 and 10 kDa.