ArticleMarine biotechnology (New York, N.Y.)2011
Occurrence of a silicatein gene in glass sponges (Hexactinellida: Porifera).
Article in Marine biotechnology (New York, N.Y.), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- The compact genome of the sponge Oopsacas minuta (Hexactinellida) is lacking key metazoan core genes.BMC biology · 2023Article
- Cooperation between passive and active silicon transporters clarifies the ecophysiology and evolution of biosilicification in sponges.Science advances · 2020Article
- Glassin, a histidine-rich protein from the siliceous skeletal system of the marine sponge Euplectella, directs silica polycondensation.Proceedings of the National Academy of Sciences of the United States of America · 2015Article
- A Proposal for the Evolution of Cathepsin and Silicatein in Sponges.Journal of molecular evolution · 2015Article
- The role of proteins in biosilicification.Scientifica · 2012Review
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Silicatein genes are involved in spicule formation in demosponges (Demospongiae: Porifera). However, numerous attempts to isolate silicatein genes from glass sponges (Hexactinellida: Porifera) resulted in a limited success. In the present investigation, we performed analysis of potential silicatein/cathepsin transcripts in three different species of glass sponges (Pheronema raphanus, Aulosaccus schulzei, and Bathydorus levis). In total, 472 clones of such transcripts have been analyzed. Most of them represent cathepsin transcripts and only three clones have been found to represent transcripts, which can be related to silicateins. Silicatein transcripts were identified in A. schulzei (Hexactinellida; Lyssacinosida; Rosselidae), and the corresponding gene was called AuSil-Hexa. Expression of AuSil-Hexa in A. schulzei was confirmed by real-time PCR. Comparative sequence analysis indicates high sequence identity of the A. schulzei silicatein with demosponge silicateins described previously. A phylogenetic analysis indicates that the AuSil-Hexa protein belongs to silicateins. However, the AuSil-Hexa protein contains a catalytic cysteine instead of the conventional serine.
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