Cited by 243Calcium Carbonate Crystallization and InhibitionDevelopmental Biology and Gene RegulationBone and Dental Protein Studies

A genome-wide analysis of biomineralization-related proteins in the sea urchin Strongylocentrotus purpuratus

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Livingston, B.T., Killian, C.E., Wilt, F., Cameron, A., Landrum, M.J., Ermolaeva, O., Sapojnikov, V., Maglott, D.R. +2 more·2006·Developmental Biology

Abstract

Biomineralization, the biologically controlled formation of mineral deposits, is of widespread importance in biology, medicine, and engineering. Mineralized structures are found in most metazoan phyla and often have supportive, protective, or feeding functions. Among deuterostomes, only echinoderms and vertebrates produce extensive biomineralized structures. Although skeletons appeared independently in these two groups, ancestors of the vertebrates and echinoderms may have utilized similar components of a shared genetic "toolkit" to carry out biomineralization. The present study had two goals. First, we sought to expand our understanding of the proteins involved in biomineralization in the sea urchin, a powerful model system for analyzing the basic cellular and molecular mechanisms that underlie this process. Second, we sought to shed light on the possible evolutionary relationships between biomineralization in echinoderms and vertebrates. We used several computational methods to survey the genome of the purple sea urchin Strongylocentrotus purpuratus for gene products involved in biomineralization. Our analysis has greatly expanded the collection of biomineralization-related proteins. We have found that these proteins are often members of small families encoded by genes that are clustered in the genome. Most of the proteins are sea urchin-specific; that is, they have no apparent homologues in other invertebrate deuterostomes or vertebrates. Similarly, many of the vertebrate proteins that mediate mineral deposition do not have counterparts in the S. purpuratus genome. Our findings therefore reveal substantial differences in the primary sequences of proteins that mediate biomineral formation in echinoderms and vertebrates, possibly reflecting loose constraints on the primary structures of the proteins involved. On the other hand, certain cellular and molecular processes associated with earlier events in skeletogenesis appear similar in echinoderms and vertebrates, leaving open the possibility of deeper evolutionary relationships.

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Crossref · 10.1016/j.ydbio.2006.07.047

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  • Analysis of the S. purpuratus genome revealed major differences in the proteins that mediate biomineralization in echinoderms and vertebrates.

    “Analysis of the S. purpuratus genome revealed major differences in the proteins that mediate biomineralization in echinoderms and vertebrates (50).”
  • Members of all three sea urchin-specific biomineralization gene families are expressed specifically by the primary mesenchyme cells.

    “The members of all three of these sea urchin-specific gene families were expressed specifically by the biomineral-forming cells of the embryo, the primary mesenchyme cells [see (50)].”
  • Many differentiation genes used in embryonic skeleton biomineralization are also used in the biomineralization of adult spines and test plates.

    “Many of the same differentiation genes as are used in the biomineralization of the embryo skeleton are also used to make the similar biomineral of the spines and test plates of the adult body.”

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Authors
Livingston, B. T., Killian, C. E., Wilt, F., Cameron, A., Landrum, M. J., Ermolaeva, O., Sapojnikov, V., Maglott, D. R., Buchanan, A. M., & Ettensohn, C. A.
Affiliations
  • University of South Florida (US)
  • University of California, Berkeley (US)
  • National Institutes of Health (US)
  • Carnegie Mellon University (US)
Corresponding author
Ettensohn, C.A.
Venue
Developmental Biology
Publisher
Elsevier BV
Published
2006-12
Volume
300
Issue
1
Pages
335-348
ISSN
0012-1606 (ISSN-L)
OpenAlex
W1997794139
Cited by
243
References
92
Citations by year
2026: 4 · 2025: 7 · 2024: 12 · 2023: 5 · 2022: 17 · 2021: 11 · 2020: 10 · 2019: 8 · 2018: 13 · 2017: 10 · 2016: 12 · 2015: 13 · 2014: 19 · 2013: 14 · 2012: 14
FWCI
7.89
Type
journal article
Language
en
Open access
Locations
  • Developmental Biology (publishedVersion)
  • PubMed (publishedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
Funders
  • National Science Foundation
  • National Institutes of Health
  • National Center for Research Resources (P40RR015044, RR15044)
Topics
  • Physical Sciences › Materials Science › Biomaterials › Calcium Carbonate Crystallization and Inhibition
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Health Sciences › Medicine › Rheumatology › Bone and Dental Protein Studies
Keywords
biomineralization, Strongylocentrotus purpuratus, sea urchins, Echinodermata, vertebrates, gene clusters, skeletogenesis, deuterostome evolution, genome-wide survey
MeSH terms
Amino Acid Sequence, Animals, Calcification, Physiologic, Echinodermata, Molecular Sequence Data, Proteins, Sea Urchins, Vertebrates, Consensus Sequence, Sequence Alignment, Genome, In Situ Hybridization, DNA Primers, Reverse Transcriptase Polymerase Chain Reaction

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