scholarly journals Evolution of Nacre: Biochemistry and Proteomics of the Shell Organic Matrix of the CephalopodNautilus macromphalus

ChemBioChem ◽  
2009 ◽  
Vol 10 (9) ◽  
pp. 1495-1506 ◽  
Author(s):  
Benjamin Marie ◽  
Frédéric Marin ◽  
Arul Marie ◽  
Laurent Bédouet ◽  
Lionel Dubost ◽  
...  
Keyword(s):  
Organic Matrix ◽  
Shell Organic Matrix

scholarly journals Proteomic characterization of oyster shell organic matrix proteins (OMP)

2016 ◽  
Vol 12 (05) ◽  
pp. 266-278 ◽  
Author(s):  
Abhishek Upadhyay ◽  
◽  
Vengatesen Thiyagarajan ◽  
◽  
◽  
...  
Keyword(s):  
Oyster Shell ◽  
Organic Matrix ◽  
Matrix Proteins ◽  
Shell Organic Matrix

Proteomic investigation of the blue mussel larval shell organic matrix

2019 ◽  
Vol 208 (3) ◽  
pp. 107385 ◽  
Author(s):  
Alessia Carini ◽  
Tomas Koudelka ◽  
Andreas Tholey ◽  
Esther Appel ◽  
Stanislav N. Gorb ◽  
...  
Keyword(s):  
Blue Mussel ◽  
Organic Matrix ◽  
Larval Shell ◽  
Proteomic Investigation ◽  
Shell Organic Matrix

scholarly journals The ‘Shellome’ of the Crocus Clam Tridacna crocea Emphasizes Essential Components of Mollusk Shell Biomineralization

2021 ◽  
Vol 12 ◽  
Author(s):  
Takeshi Takeuchi ◽  
Manabu Fujie ◽  
Ryo Koyanagi ◽  
Laurent Plasseraud ◽  
Isabelle Ziegler-Devin ◽  
...  
Keyword(s):  
Organic Matrix ◽  
The Other ◽  
Matrix Proteins ◽  
Shell Formation ◽  
Molluscan Shell ◽  
Shell Matrix ◽  
Essential Components ◽  
Shell Matrix Proteins ◽  
Shell Organic Matrix ◽  
Tridacna Crocea

Molluscan shells are among the most fascinating research objects because of their diverse morphologies and textures. The formation of these delicate biomineralized structures is a matrix-mediated process. A question that arises is what are the essential components required to build these exoskeletons. In order to understand the molecular mechanisms of molluscan shell formation, it is crucial to identify organic macromolecules in different shells from diverse taxa. In the case of bivalves, however, taxon sampling in previous shell proteomics studies are focused predominantly on representatives of the class Pteriomorphia such as pearl oysters, edible oysters and mussels. In this study, we have characterized the shell organic matrix from the crocus clam, Tridacna crocea, (Heterodonta) using various biochemical techniques, including SDS-PAGE, FT-IR, monosaccharide analysis, and enzyme-linked lectin assay (ELLA). Furthermore, we have identified a number of shell matrix proteins (SMPs) using a comprehensive proteomics approach combined to RNA-seq. The biochemical studies confirmed the presence of proteins, polysaccharides, and sulfates in the T. crocea shell organic matrix. Proteomics analysis revealed that the majority of the T. crocea SMPs are novel and dissimilar to known SMPs identified from the other bivalve species. Meanwhile, the SMP repertoire of the crocus clam also includes proteins with conserved functional domains such as chitin-binding domain, VWA domain, and protease inhibitor domain. We also identified BMSP (Blue Mussel Shell Protein, originally reported from Mytilus), which is widely distributed among molluscan shell matrix proteins. Tridacna SMPs also include low-complexity regions (LCRs) that are absent in the other molluscan genomes, indicating that these genes may have evolved in specific lineage. These results highlight the diversity of the organic molecules – in particular proteins – that are essential for molluscan shell formation.

The stable isotope fingerprint of chemosymbiosis in the shell organic matrix of seep-dwelling bivalves

2018 ◽  
Vol 479 ◽  
pp. 241-250 ◽  
Author(s):  
Dong Feng ◽  
Jörn Peckmann ◽  
Niu Li ◽  
Steffen Kiel ◽  
Jian-Wen Qiu ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Organic Matrix ◽  
Shell Organic Matrix

Fossil mollusk shell organic matrix components preserved for 80 million years

Paleobiology ◽  
1979 ◽  
Vol 5 (2) ◽  
pp. 144-150 ◽  
Author(s):  
S. Weiner ◽  
H. A. Lowenstam ◽  
B. Taborek ◽  
L. Hood
Keyword(s):  
Ion Exchange ◽  
Upper Cretaceous ◽  
Exchange Resin ◽  
Organic Matrix ◽  
Ion Exchange Resin ◽  
Ion Exchange Chromatography ◽  
Exchange Chromatography ◽  
Diagenetic Alteration ◽  
Matrix Components ◽  
Shell Organic Matrix

The organic matrix components of a fossil ammonoid shell from the Upper Cretaceous, can be separated into sub-fractions which are generally comparable to those found in extant Nautilus, using ion exchange chromatography. This suggests that at least portions of these components are sufficiently well preserved to interact characteristically with the ion exchange resin. Amino acid compositions of these sub-fractions, however, do not resemble Nautilus organic matrix sub-fractions, indicating that considerable diagenetic alteration of this material has taken place.

Sign in / Sign up

Export Citation Format

Share Document