Inhibition of the growth of calcium carbonate crystals by multiple lectins in the coelomic fluid of the acorn barnacle Megabalanus rosa

Effects of lectin in the scleractinian coral Ctenactis echinata on symbiotic zooxanthellae

“…Marine vertebrates and invertebrates are rich sources of lectins with various sugar-binding specificities. Although the physiological functions of lectins are not fully understood, some are postulated to be involved in self-nonself recognition in innate immunity [2,3], biomineralization [4][5][6], and development [7].…”

Diverse Sugar-Binding Specificities of Marine Invertebrate C-Type Lectins

“…The multiple C-type lectins, BRA-1 (Mr 330k), BRA-2 (Mr 140k), and BRA-3 (Mr 64k), are major hemolymph proteins in M. rosa. 16,17) BRA-1 and BRA-2 are composed of an identical subunit (22 kDa), which consists of 173 amino acid residues with one N-glycosylation site at Asn-39. 25) BRA-3 is composed of four identical subunits (16 kDa), which consist of 138 amino acid residues.…”

“…We have proposed possible multiple functions of C-type lectins in acorn barnacle, Megabalanus rosa, hemolymph: their participation in defense and biomineralization. 16,17) The lectins comprise three different y To whom correspondence should be addressed. Tel/Fax: +81-22-717-8807; E-mail: muramoto@biochem.tohoku.ac.jp Abbreviations: BRA, Megabalanus rosa lectin; BRL, Balanus rostatus lectin; FAC, frontal affinity chromatography; PA, pyridylaminated; pNP, p-nitrophenyl molecular forms with respect to molecular weight, designated BRA-1, BRA-2, and BRA-3.…”

Tempe and Mineral Availability

“…Despite that the occurrence of CPP-like peptides are not expected in fermented soy products, some peptides that prevent the crystallization of calcium and promote its absorption, such as peptides rich in acidic amino acids (Muramoto et al, 1994), may be produced during fermentation. The calcium absorption ratio of the anaerobic-tempe group was remarkably less than that of the tempe group.…”