ArticleFish physiology and biochemistry2010
Vitamin K-dependent gamma-glutamylcarboxylase in Atlantic salmon (Salmo salar L.).
Article in Fish physiology and biochemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed, 9 citations in OpenAlex.
- Zebrafish vitamin K epoxide reductases: expression in vivo, along extracellular matrix mineralization and under phylloquinone and warfarin in vitro exposure.Fish physiology and biochemistry · 2015Article
- Dietary supplementation with vitamin k affects transcriptome and proteome of Senegalese sole, improving larval performance and quality.Marine biotechnology (New York, N.Y.) · 2014Article
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Due to problems with bone deformities in farmed Atlantic salmon, there is a growing interest in the possible involvement of vitamin K in normal bone development, and sensitive biomarkers for evaluating vitamin K status are therefore needed. The vitamin K-dependent (VKD) enzyme gamma-glutamylcarboxylase (GGCX, EC 6.4.x.x) requires vitamin K as a cofactor for its post-translational modification of glutamic acid (Glu) residues to gamma-carboxyglutamic acid (Gla) residues in VKD proteins, and is required for their function in haemostasis and bone metabolism. The present study was designed to evaluate the enzyme assay for GGCX activity in isolated liver microsomes and its distribution in the tissues of Atlantic salmon. The effect of KH(2) and menadione on the GGCX activity in salmon liver was also compared. Results from the present study show a widespread tissue distribution and expression of GGCX in Atlantic salmon. The GGCX activity and ggcx expression in all bony tissues examined imply the presence of vitamin K, and suggest the involvement of vitamin K in bone metabolism of Atlantic salmon. We propose the GGCX assay as a sensitive marker for vitamin K status, and confirm that menadione does not work as a cofactor for GGCX in Atlantic salmon liver.
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